Overview of Funding Mechanisms in the
Federal Budget Process, and
Selected Examples

Updated February 5, 2021
Congressional Research Service
https://crsreports.congress.gov
R44582




Overview of Funding Mechanisms in the Federal Budget Process, and Selected Examples

Summary
Every year, Congress considers numerous pieces of legislation that would create or modify
federal government programs and activities. The variety of approaches used across the federal
budget to fund these programs and activities involve different timelines for budgetary
decisionmaking, and different processes within Congress to make those decisions. How a
particular funding mechanism is structured requires tradeoffs between the frequency of
congressional review and the predictability of funding for the program. The purpose of this report
is to explain these approaches, il ustrating them with examples.
When attempting to understand the mechanism through which a program is funded, one of its
most basic elements is the type of law that controls that funding. Such laws—and their
provisions—can be distinguished by whether their primary purpose is to create or modify federal
programs or activities (“authorizations”), or to fund those activities (“appropriations”).
Discretionary spending programs general y are established through authorization laws, but the
annual appropriations process determines the extent to which those programs wil actual y be
funded, if at al . Examples of discretionary spending discussed in this report include the Office of
Apprenticeship (Department of Labor; DOL) and the Violence Against Women Family Research
and Evaluation program (Department of Justice).
Mandatory spending is controlled by authorization laws. For this type of spending, the program
usual y is created and funded in the same law, often on a multiyear or permanent basis. Examples
of this type of funding mechanism that are discussed in this report include the State Children’s
Health Insurance Program (Department of Health and Human Services; HHS), Technical
Assistance for Tribal Child Welfare Programs (HHS), and Social Security Disability Insurance
(Social Security Administration; SSA). Alternatively, a mandatory spending program might be
created in an authorization law but funded annual y through an appropriations act; this is often
referred to as “appropriated mandatory” spending. Examples of appropriated mandatory spending
include the Social Services Block Grant (HHS) and Supplemental Security Income (SSA).
In some cases, including the federal Health Center Program (HHS) and the Child Care and
Development Fund (HHS), federal government programs are funded using a combination of
mandatory and discretionary spending.
Besides the type of law that controls the spending, another important aspect of any funding
mechanism is what the source of that funding wil be. This is because there is a distinction
between the authority to expend funds and the source of the funds themselves. Revenue and other
collections made by the federal government are general y deposited in the General Fund (GF) of
the Treasury, which is the default source of spending for many different types of federal
government activities. Examples of funding mechanisms that utilize the GF include the Office of
Apprenticeship (DOL) and the Maternal, Infant, and Early Childhood Home Visiting program
(HHS). Spending also may be funded by dedicated collections that result from the business-like
activities that the federal government undertakes. Both the legal authority to make these
collections, and the legal authority to expend them, may be provided either through authorization
or appropriations acts, and may support either mandatory or discretionary spending. Examples of
dedicated collections that are discussed include those associated with the Immigration
Examinations Fee Account (Department of Homeland Security; DHS), the Manufactured Housing
Fees Trust Fund (Department of Housing and Urban Development; HUD), and the Health
Surveil ance and Program Support account (HHS). In some cases, programs are funded using a
combination of the GF and dedicated collections (Medicare, the Prescription Drug User Fee Act,
and activities undertaken by the Food and Drug Administration [HHS]).
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Contents
Introduction ................................................................................................................... 1
Funding Types ................................................................................................................ 3
Discretionary Spending .............................................................................................. 4
Role of Authorizations and Appropriations in Discretionary Spending .......................... 4
General Implications............................................................................................. 7
Mandatory Spending ................................................................................................ 10
Role of Authorizations and Appropriations in Mandatory Spending............................ 10
Appropriated Mandatory Spending........................................................................ 12
General Implications........................................................................................... 15
Mixed Approaches ................................................................................................... 17
Discretionary and Mandatory Spending for Identical or Related Purposes ................... 17
General Implications........................................................................................... 18
Funding Sources ........................................................................................................... 19
General Fund of the Treasury .................................................................................... 20
Dedicated Collections .............................................................................................. 21
Mandatory Spending........................................................................................... 22
Discretionary Spending ....................................................................................... 23
Mixed Sources ........................................................................................................ 25
Mandatory Spending........................................................................................... 26
Discretionary Spending ....................................................................................... 27
General Implications ................................................................................................ 28
Summary of General Implications of Funding Mechanisms ................................................. 30

Figures
Figure 1. Il ustration of Funding Types ............................................................................... 3
Figure 2. Il ustration of Funding Sources .......................................................................... 20

Tables

Table A-1. Funding Type: Summary of Examples............................................................... 33
Table A-2. Funding Source: Summary of Examples ............................................................ 34

Appendixes
Appendix. Summary of Examples.................................................................................... 32

Contacts
Author Information ....................................................................................................... 36
Acknowledgments......................................................................................................... 36

Congressional Research Service

Overview of Funding Mechanisms in the Federal Budget Process, and Selected Examples


Congressional Research Service

Overview of Funding Mechanisms in the Federal Budget Process, and Selected Examples

Introduction
Every year, Congress considers numerous pieces of legislation that would create or modify
federal government programs and activities. In many instances, the scope, duration, and area of
focus intended for a program are factors that may influence how it wil be funded. The reverse
can also be the case—that how Congress seeks to fund a program can inform how it is structured.
Once a program is established, the way in which it is funded continues to be relevant to Congress
for at least two reasons. First, how a program’s funding is structured may lead the population that
it serves, as wel as other stakeholders, to make certain assumptions about how stable its level of
benefits or services wil be in future years.1 Second, how often—and in what type of legislation—
funding decisions are made creates different opportunities for Congress to exercise its power of
the purse.
The legislative framework for establishing and funding the activities of the federal government is
based on a fundamental distinction between two types of laws (and provisions within those
laws)—“authorizations” and “appropriations.”2
Authorizations provide legal authority for the government to act, usual y by
establishing, continuing, or restricting a federal agency, program, policy, project,
or activity.
Appropriations provide both the legal authority to obligate the government to
make future payments from the Treasury, and also the ability to subsequently
make those payments.3
Under the congressional budget process, a funding mechanism for a particular program or
purpose general y can be distil ed to two essential elements—the type of funding that is provided
and the source of that funding. The funding type can be distinguished based on whether an
authorization or appropriations act controls the level of spending. In the case of mandatory
spending
, an authorization act not only establishes the program but also requires certain payments
to be made, and thus determines the level of funding for that program. For discretionary
spending, in general, an authorization act establishes the program but the decision of the amount
of funding to provide that program, if any, is subsequently made by appropriations laws. The
funding source for either mandatory or discretionary spending may be the General Fund (GF) of
the Treasury, which is where revenue and other collections made by the federal government are
general y deposited.4 In some cases, spending also may be funded through a dedicated revenue

1 Such stakeholders could include executive branch departments, organizations that provide direct services, and (as
mentioned) the populations that programs serve. See, for example, Allen Schick, Congress and Money: Budgeting
Spending and Taxing
, (Washington, D.C.: T he Urban Institute, 1980), pp. 211 -212; and Irene S. Rubin, The Politics of
Public Budgeting: Getting and Spending, Borrowing and Balancing
, 7th Ed. (T housand Oaks, CA: CQ Press, 2014), p.
69.
2 For general information about the role of authorizations and appropriations in the budget process, see CRS Report
R46240, Introduction to the Federal Budget Process; CRS Report R46497, Authorizations and the Appropriations
Process
; and CRS Report R46417, Congress’s Power Over Appropriations: Constitutional and Statutory Provisions.
3 An appropriation is a type of budget authority. Budget authority is authority provided by federal law to enter into
contracts or other financial obligations that will result in immediate or future expenditures (or outlays) involving
federal government funds. For a further explanation of these terms, see Government Accountability Office (GAO), A
Glossary of T erms Used in the Federal Budget Process, GAO-05-734SP, September 2005, pp. 20-21,
http://www.gao.gov/new.items/d05734sp.pdf.
4 T he Miscellaneous Receipts Act, codified at 31 U.S.C. §3302(b), requires that unless otherwise provided in statute
“an official or agent of the Government receiving money for the Government from any source shall deposit the money
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source or other types of collections that result from the business-like activities that the federal
government undertakes (referred to for the purposes of this report as dedicated collections).5 The
funding source within a funding mechanism may be established through either authorization or
appropriations laws.
When seeking to understand how a particular program or activity is funded, the extent to which
the funding mechanism involves an authorization act, an appropriations measure, or both is
significant for a variety of reasons. For instance, appropriations acts are enacted annual y,
whereas authorizations may be enacted as needed, on a multiyear or permanent basis. In addition,
Congress has chosen to vest control over authorizations and appropriations in separate
committees, so that the House and the Senate Appropriations Committees have exclusive
jurisdiction over annual appropriations acts, and the other legislative committees in each chamber
have jurisdiction over authorizations. As a result, funding mechanisms (and the elements within
them) that involve appropriations acts wil general y be subject to a different schedule, committee
process, and method of legislative review than funding mechanisms that involve authorization
acts.
The range of options that exists for funding government programs and activities has resulted in a
variety of approaches across the federal budget. The purpose of this report is to discuss these
approaches and il ustrate them with examples of how they have been applied in practice. The first
part of the report describes the two general funding types—discretionary and mandatory—based
on the contrasting roles that authorizations and appropriations play for each type. It also discusses
how both approaches might be used to fund a single purpose (“mixed approaches”). The second
part of the report explains the various budget process options that exist for the source of funds.
The report concludes by summarizing the general issues for Congress when it evaluates a funding
mechanism, both those that are proposed and those that already exist. Table A-1 and Table A-2 in
the Appendix summarize the examples of various funding types and funding sources discussed.
While this report describes general budget process principles as to how programs are funded, it is
not exhaustive as to al possible variations that occur in practice. In addition, while it summarizes
the implications of mandatory and discretionary funding mechanisms in terms of the general
budget process framework that governs them, it does not describe the budget rules that enforce
that framework. Though these budget enforcement rules are outside the scope of this report, they
may play a significant role in the funding mechanism that Congress prefers for a particular
program.6 Other issues that are also outside the scope of the report are types of budget authority,7

in the T reasury as soon as practicable without deduction for any charge or claim .”
5 Generally, such business-like transactions occur when the federal government provides goods or services to certain
recipients that are above and beyond what would normally be available to the public. For further information, see Alan
Schick, The Federal Budget: Politics, Process, and Policy, 3rd Ed. (Washington, D.C.: Brookings Institution Press,
2007), pp. 188-190.
6 T hese rules are explained in a number of CRS reports. See, for example, CRS Report R41157, The Statutory Pay-As-
You-Go Act of 2010: Sum m ary and Legislative History
; CRS Report R40472, The Budget Resolution and Spending
Legislation
; CRS Report R41408, Rules and Practices Governing Consideration of Revenue Legislation in the House
and Senate
; CRS Report R46240, Introduction to the Federal Budget Process; and CRS Report R46497,
Authorizations and the Appropriations Process.
7 T he types of budget authority that are illustrated by the examples in this report are “appropriations” and “ authority to
obligate and expend offsetting receipts and collections” (GAO, A Glossary of T erms Used in the Federal Budget
Process, GAO-05-734SP, September 2005, pp. 20-22, http://www.gao.gov/new.items/d05734sp.pdf.) Other types of
budget authority, such as “contract authority,” are not illustrated (see, for example, CRS Report R45350, Funding and
Financing Highways and Public Transportation
). T his report also does not discuss the structure of the funding for
federal credit programs (see CRS Report R42632, Budgetary Treatm ent of Federal Credit (Direct Loans and Loan
Guarantees): Concepts, History, and Issues for Congress
).
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Overview of Funding Mechanisms in the Federal Budget Process, and Selected Examples

periods of availability for funding,8 and specific budget execution implications of each option
(such as program operations when funding lapses).
Funding Types
Under the congressional budget process, funding mechanisms are general y classified as either
discretionary or mandatory spending. The distinction between these two approaches relates to
what type of law controls the authority to obligate the federal government to make payments, as
il ustrated in Figure 1. (The programs listed in Figure 1Office of Apprenticeship
(Apprenticeship), State Children’s Health Insurance Program (CHIP), Child Care and
Development Fund (CCDF), and Social Services Block Grant (SSBG)—are some of the
examples of funding types discussed in this section of the report.) The discretionary spending
approach creates general or specific authority for an activity through an authorization law, but it
leaves the decision as to how much that activity wil actual y be funded, if at al , to the annual
appropriations process. In other words, the authorization law for a discretionary spending activity
neither funds that activity nor requires that funding for that activity be provided in the future.
Instead, appropriations laws are always what controls discretionary spending. In contrast,
mandatory spending for an activity is “controlled” by an authorization act. This control usual y is
accomplished by establishing and funding that activity in the same law. Alternatively, the
authorization law that creates a mandatory spending activity sometimes contains provisions that
legal y require that funding be provided in the future. While appropriations that finance these
types of funding requirements are provided in appropriations laws, they are technical y controlled
by authorization laws. This alternative approach is often referred to as “appropriated mandatory”
spending.
Figure 1. Illustration of Funding Types

Source: CRS.
Notes: The parenthetical examples in this figure are discussed in the report section that fol ows.
Apprenticeship=Office of Apprenticeship; CHIP=State Children’s Health Insurance Program; SSBG=Social
Services Block Grant; CCDF=Child Care and Development Fund.
The following section explains the contrasting roles of authorizations and appropriations in
discretionary and mandatory funding mechanisms. This discussion includes a number of
examples of funding mechanisms for various federal government programs to il ustrate both basic
principles and variation in practice. Because, in practice, certain programs are funded by more
than one type of mechanism, this section also explains and il ustrates mixed approaches. Final y,

8 T he “period of availability” for an appropriation is the amount of time that the funding is available for obligation
(e.g., one year, more than one year, or without fiscal year limitation). For further information, see CRS Report R42388,
The Congressional Appropriations Process: An Introduction .
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each discussion of the different funding types concludes with a general summary of their
implications for budgetary decisionmaking within Congress, and how each navigates tradeoffs
between frequent congressional review and funding predictability.9
Discretionary Spending
Discretionary spending typical y is roughly 30% of federal spending.10 It funds numerous
activities across the federal government, including many grants, purchases of equipment and
other assets, and almost al spending on defense. This type of spending also is used for general
government operations, including the vast majority of spending on federal wages and salaries.
For programs funded via discretionary spending, congressional control over money and policy
decisions is divided between the authorization and appropriations processes. While “policy”
decisions may occur on an as-needed basis through the enactment of authorization laws, or on a
periodic basis as expiring authorization provisions are renewed, “money” decisions general y
occur each year through the enactment of appropriations laws. However, this separation between
money and policy decisions is not always observed in practice. Moreover, the differing frequency
with which authorization and appropriations decisions may occur makes discretionary funding
mechanisms particularly complex and subject to variation from program to program. And while
this approach tends to al ow for a more regular congressional review of the use of funds, it also
has a greater potential for year-to-year instability in the level of budgetary resources that are
available for a given program or activity.
Role of Authorizations and Appropriations in Discretionary Spending
Under the congressional budget process, the authority for a discretionary spending program or
purpose is to be established before it is funded. This authority may be specific to that program or
purpose, or may more general y encompass a class of authorized activities. For example,
provisions in the National Apprenticeship Act, which was enacted in 1939, general y grant the
Secretary of Labor the authority to oversee apprenticeships:
The Secretary of Labor is authorized and directed to formulate and promote the furtherance
of labor standards necessary to safeguard the welfare of apprentices, to extend the
application of such standards by encouraging the inclusion thereof in contracts of
apprenticeship, to bring together employers and labor for the formulation of programs of
apprenticeship, to cooperate with State agencies engaged in the formulation and promotion
of standards of apprenticeship, and to cooperate with the Secretary of Education in
accordance with section 17 of title 20. [29 U.S.C. §50]
Pursuant to this authority, the Office of Apprenticeship within the Department of Labor (DOL)
registers employers’ apprenticeship programs as being in compliance with federal standards, and
engages in other related activities.11 Legislative review of this authority has occurred on an as-

9 T he tradeoffs between frequent congressional review and funding predictability have long been recognized as an
inherent challenge that Congress must navigate in budgetary decisionmaking. See, for example, House Budget
Committee, Congressional Control of Expenditures, Committee Print (Washington, D.C.: U.S. Government Printing
Office, January 1977); and Allen Schick, Congress and Money: Budgeting Spending and Taxing , (Washington, D.C.:
T he Urban Institute, 1980), pp. 571-572, 575-577.
10 T he remainder of federal spending is classified as “direct” or “mandatory” spending, and interest on the debt. For
recent budgetary figures and future projections, see Congressional Budget Office (CBO), An Update to the Budget
Outlook: 2020 to 2030,
September 2020, p. 6, https://www.cbo.gov/publication/56542.
11 For further information, see CRS Report R44174, Apprenticeship in the United States: Frequently Asked Questions.
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needed basis, with the most recent changes to that law being enacted in 1973.12 However,
congressional decisionmaking with regard to how much to fund this program has occurred each
fiscal year through the annual appropriations process. In FY2020, the appropriations provisions
that provided funding for the program included the following:13
The following sums in this Act are appropriated, out of any money in the Treasury not
otherwise appropriated, for the fiscal year ending September 30, 2020. [P.L. 116-94, §5]
$175,000,000 to expand opportunities through apprenticeships only registered under the
National Apprenticeship Act and as referred to in section 3(7)(B) of the WIOA, to be
available to the Secretary to carry out activities through grants, cooperative agreements,
contracts and other arrangements, with States and other appropriate entities. [P.L. 116-94,
Division A, Title I]
An appropriation may be provided for purposes that were general y authorized or for more
specific purposes under the auspices of (or in addition to) that general authority.14 In the example
above, appropriations for the activities general y authorized by the National Apprenticeship Act
are also specifical y made available to the Secretary to carry out those purposes through grants,
cooperative agreements, contracts, and other arrangements.
Implicit Versus Explicit Authorizations of Appropriations
By themselves, authorization provisions that establish the authority for a program or purpose
implicitly authorize future appropriations for that purpose. In other words, in such instances the
authorization addresses the policy aspects of the program but does not include an indication of the
funding level that might be necessary to carry out that program.15 The establishment of that
program or purpose in law, however, authorizes Congress to take legislative action to fund the
program or purpose at a later time. Besides the implicit authorization of appropriations that is
provided by the National Apprenticeship Act (above), further examples of this type of
arrangement include the DOL Bureau of Labor Statistics16 and many of the departmental offices
that were established at the inception of the Department of Homeland Security in 2002.17
In addition to provisions that establish the parameters of federal government activities,
authorization laws may also include provisions that explicitly authorize future appropriations.
While authorizations of appropriations do not actual y provide funding, the specific dollar
amounts that are authorized to be appropriated may be viewed as signifying the level of funding
that was regarded as necessary or optimal for a particular purpose at the time of the
authorization’s enactment.18 The actual level of funding, however, is subsequently determined
through an appropriations law. From the perspective of congressional rules, explicitly authorizing

12 Section 771(b) of P.L. 93-198 inserted a provision clarifying that “State” includes the District of Columbia.
13 T he DOL Office of Apprenticeship also receives funds from another account (“program administration”) for
operational expenses. For further information about this account, see DOL, FY2017 Budget in Brief, p. 28-29,
https://www.dol.gov/sites/default/files/documents/general/budget/FY2017BIB_0.pdf.
14 Congress also might decline to provide appropriations for a previously authorized purpose. Such “none of the funds”
provisions in appropriations acts are discussed in CRS Report R41634, Lim itations in Appropriations Measures: An
Overview of Procedural Issues
.
15 GAO, Office of the General Counsel, Principles of Federal Appropriations Law, Volume I, p. 2-55 (4th ed. 2016), at
http://www.gao.gov/legal/redbook/redbook.html (hereinafter, “ GAO Red Book”).
16 29 U.S.C. §§1-8.
17 6 U.S.C. §§112, 113, 341-342, 344-345.
18 Alan Schick, The Federal Budget: Politics, Process, and Policy, 3rd Ed. (Washington, D.C.: Brookings Institution
Press, 2007), pp. 171, 207-208.
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a specific dollar amount also has the effect of placing a procedural limit on the amount that may
be appropriated, although Congress may later choose to set aside its rules and provide a greater
amount.19 For example, the authorization for the Child Care and Development Block Grant
(CCDBG) at Health and Human Service (HHS) includes provisions that explicitly authorized
appropriations for specific amounts each fiscal year between FY2015-FY2020:
There is authorized to be appropriated to carry out this subchapter $2,360,000,000 for fiscal
year 2015, $2,478,000,000 for fiscal year 2016, $2,539,950,000 for fiscal year 2017,
$2,603,448,750 for fiscal year 2018, $2,668,534,969 for fiscal year 2019, and
$2,748,591,018 for fiscal year 2020. [42 U.S.C. §9858]
Subsequent legislative action through the appropriations process each fiscal year determines the
actual amount of funding that wil be available to the CCDBG, which in practice may be higher
or lower than the amount that was authorized to be appropriated.20 For instance, the FY2020
CCDBG appropriation was as follows:
The following sums in this Act are appropriated, out of any money in the Treasury not
otherwise appropriated, for the fiscal year ending September 30, 2020. [P.L. 116-94, §5]
For carrying out the Child Care and Development Block Grant Act of 1990 (“CCDBG
Act”’), $5,826,000,000 shall be used to supplement, not supplant State general revenue
funds for child care assistance for low-income families… [P.L. 116-94, Division A, Title
II]
In contrast to the example discussed above, sometimes the amount of funding that is explicitly
authorized is indefinite. (Indefinite authorizations of appropriations can be either permanent or
limited to specific fiscal years.) The Violence Against Women and Family Research and
Evaluation program at the Department of Justice (DOJ)21 il ustrates the typical form of such an
authorization:
There are authorized to be appropriated such sums as may be necessary to carry out this
section. [P.L. 106-386, Division B, Title IV, §1404(b)]
This language has the effect of asserting the role of authorizations in budgetary decisionmaking
while preserving procedural flexibility for the appropriations process to determine the specific
amount that should be appropriated. The appropriation for FY2020 was as follows:
The following sums in this Act are appropriated, out of any money in the Treasury not
otherwise appropriated, for the fiscal year ending September 30, 2020. [P.L. 116-93, §5]

19 House and Senate rules restrict the consideration of “unauthorized appropriations” under certain circumstances.
Unauthorized appropriations generally include both appropriations in excess of their authorized level and
appropriations when the relevant authorization of appropriations has expired. A point of order must be raised and
sustained, however, during consideration of appropriations measures in order to enforce these restrictions. T he House
and Senate also have mechanisms to waive their rules. For further information, see CRS Report R42098, Authorization
of Appropriations: Procedural and Legal Issues
, pp. 4-8.
20 If an appropriation is enacted that exceeds it s authorization, such an appropriation generally may be expended.
Declining to enact an appropriation for an authorized purpose does not repeal the authorization , but it may have
practical implications for the ability of the agency to carry out that authorized purpose. For a further discussion of this
issue, see CRS Report R42098, Authorization of Appropriations: Procedural and Legal Issues, pp. 8-12.
21 T he program is intended to promote the safety of women and family members, and to increase the efficiency and
effectiveness of the criminal justice system’s response to crimes against this population. It is administered by the
National Institute of Justice within DOJ. For further information, see CRS Report RL33111, Departm ent of Justice
Reauthorization: Provisions to Im prove Program Management, Com pliance, and Evaluation of Justice Assistanc e
Grants
(available to congressional clients upon request); and CRS Report R42499, The Violence Against Wom en Act:
Overview, Legislation, and Federal Funding
.
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$2,500,000 is for the National Institute of Justice and the Bureau of Justice Statistics for
research, evaluation, and statistics of violence against women and related issues addressed
by grant programs of the Office on Violence Against Women, which shall be transferred
to “Research, Evaluation and Statistics” for administration by the Office of Justice
Programs [P.L. 116-93, Division B, Title II]
As was mentioned previously, the statutory authority to administer a program or engage in an
activity also provides an implicit authorization to appropriate funds for such a program or
activity, even in the absence of an explicit authorization of appropriations. Furthermore, there is
no constitutional or general statutory requirement that an appropriation must be preceded by a
specific act that authorized it.22 If an explicit authorization of appropriations is present, however,
it may expire (i.e., sunset) even though the underlying authority to administer the program does
not. If that explicit authorization of appropriations is not renewed, subsequent appropriations are
often regarded for the purposes of congressional rules as being unauthorized.23
The expiration of an explicit authorization of appropriation usual y does not affect the underlying
legal authority for the federal government to engage in the programs and activities to which that
authorization of appropriations relates.24 When appropriations are provided for programs with an
expired authorization of appropriations, federal agencies usual y have sufficient legal authority to
implement and operate these programs.25 This is because an authorization of appropriations is
“basical y a directive to Congress itself, which Congress is free to follow or alter (up or down) in
the subsequent appropriation act.”26 Ultimately, it is through the appropriations acts themselves
that Congress decides the level of funding that wil be available for federal government programs.
General Implications
Congress divides the responsibility for discretionary spending programs between the
authorization and appropriations processes, with each process having a different role in budgetary
decisionmaking. Authorization laws, which are under the jurisdiction of the various legislative
committees in each chamber, are responsible for establishing the parameters of the programs.
Appropriations laws, which are under the exclusive jurisdiction of the House and the Senate
appropriations committees, are responsible for deciding how much should be spent on each
discretionary spending program. While the structure of a program and its schedule of review may
have an indirect effect on spending decisions, it is ultimately through the appropriations process

22 Occasionally, the authority for an agency to carry out a program or activity originates entirely from provisions in the
appropriations act that funds that program or activity. As explained by the GAO, “there is no general statutory
requirement that appropriations be preceded by specific authorizations, although they may be required in some
instances. Where authorizations are not required by law, Congress may, subject to a possible point of order, appropriate
funds for a program or object that has not been previously authorized or which exceeds the scope of a prior
authorization. If so, the enacted appropriation, in effect, carries its own authorization and is available to the agency for
obligation and expenditure (GAO Red Book, pp. 2-79 and 2-80).”
23 See footnote 19.
24 T here can be exceptions to this rule, such as the actions taken by the Department of Education between September
30, 2015, and December 18, 2015, to curtail the operations of the federal Perkins Loan program, in part, because the
department considered the authorization of appropriations provision under the Higher Education Act Section 461(b)(1)
to control the durat ion of the program. For further information, see CRS Report R44343, The Federal Perkins Loan
Program Extension Act of 2015: In Brief
.
25 According to GAO, “as a general proposition, the appropriation of funds for a program whose funding authorization
has expired ... provides sufficient legal basis to continue the program during that p eriod of availability, absent
indication of contrary congressional intent.” GAO Red Book, p. 2-69.
26 Ibid, p. 2-56.
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that the relative budgetary priority for that program is determined and discretionary funding for
that program is provided.
The congressional budget process does not establish a set schedule for authorization laws to be
considered or enacted, and there is considerable variation in practice from program to program.27
The laws that control program authorities are usual y enacted on a permanent basis and are only
revised as needed.28 Congress may choose to include provisions in authorization laws that are
temporary, whether they involve program authorities29 or an explicit authorization of
appropriations, to provide an occasion for more regular legislative action with regard to that
authorization.30 For instance, the provisions that authorize appropriations in the National Defense
Authorization Act general y are for a single fiscal year, and congressional action to reauthorize
those provisions and make needed changes to defense-related programs has occurred each fiscal
year since 1962.31 In current practice, however, regular enactment of annual authorization laws
occurs only in limited instances.
In part because the expiration or absence of an explicit authorization of appropriations general y
has no legal effect on the underlying authority for an agency to administer a program, Congress
might not necessarily renew those provisions before they expire.32 For example, provisions that
authorize appropriations for the Elementary and Secondary Education Act (ESEA) have, at times,
been reauthorized at relatively regular intervals, and they have sometimes lapsed for a number of
months or even years before being renewed due to extended congressional deliberations
concerning K-12 education policy.33 In general, the programs and purposes authorized by the
ESEA continued to receive funding through the appropriations process each fiscal year even after
the authorizations of appropriations expired.34

27 T he factors that may influence authorizing activity in Congress are discussed further in Alan Schick, The Federal
Budget: Politics, Process, and Policy
, 3rd Ed. (Washington, D.C.: Brookings Institution Press, 2007), pp. 200-202.
28 Legislation that would make changes to an existing authorization is often referred to as a “reauthorization.” For
example, this term is frequently used when an explicit authorization of appropriations is about to expire. Note,
however, that there is no universal definition for this term. It is sometimes applied to legislation that would enact new
authorizations of appropriations. In other instances, it also encompasses legislation that would make any changes to the
underlying program authorities. In still others, it only includes legislation that would provide a more comprehensive
legislative review of a particular law or entity.
29 Programs with authorities that sunset include the Export-Import Bank (see charter, 12 U.S.C. §635f) and T errorism
Risk Insurance. For further information, see CRS In Focus IF10017, Export-Im port Bank of the United States (Ex-Im
Bank)
; and CRS In Focus IF11090, The Terrorism Risk Insurance Act (TRIA).
30 CRS Report R43862, Changes in the Purposes and Frequency of Authorizations of Appropriations; Alan Schick,
Legislation, Appropriations, and Budgets: T he Development of Spending Decisionmaking in Congress, Congressional
Research Service, May 1984; and Louis Fisher, “ Annual Authorizations: Durable Roadblocks to Biennial Budgeting,”
Public Budgeting and Finance, Spring, 1983.
31 For further information about the history of the National Defense Authorization Act, see Pat T owell, “Congress and
Defense,” in Congress and the Politics of National Security, ed. David P. Auerswald and Colton C. Campbell
(Cambridge, MA: Cambridge Press, 2012), p. 86-87; and Colleen J. Shogan, “ Like Clockwork: Senate Consideration of
the National Defense Authorization Act,” Congressional Research Service, CRS Centennial Series: The Evolving
Congress
, Washington, DC, December 2014.
32 T he Congressional Budget Office (CBO) compiles an annual list of appropriations with expired authorizations of
appropriations. In FY2020, this list identified a total of 272 laws with expired authorizations of appropriations. (CBO,
Unauthorized Appropriations and Expiring Authorizations, February 5, 2020, https://www.cbo.gov/system/files/2020-
02/56082-CBO-EEAA.pdf).
33 For instance, previously, ESEA reauthorizations were enacted at somewhat regular intervals: 1988, 1994, and 2001.
However, many of the ESEA authorizations of appropriations lapsed in FY2008, and were not renewed until calendar
year 2015. (T hat most recent renewal reauthorized appropriations starting in FY2017.)
34 For further information about the ESEA, including its latest reauthorization, see CRS Report R44297,
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The decisions made through the authorization process related to the nature of federal government
programs and the populations they serve have indirect implications for discretionary spending
decisionmaking. The mission and structure of an individual program may be such that various
funding levels may be provided, or such that the program wil not function properly below a
certain level of funding.35 In addition, if a program has an explicit authorization of appropriations,
the level of funding indicated may inform congressional decisionmaking about that program but
is not a guarantee that such funding wil be provided.36
Ultimately, appropriations decisionmaking with regard to discretionary spending occurs within a
“top-down” funding structure. The total level for such spending is decided first, and then
programs compete against each other for budgetary resources within that limited amount of
spending.37 It is through this process that the actual funding for each discretionary spending
program is decided, in light of its authorized purposes and the extent to which Congress decides
that those purposes should be prioritized within the current budgetary constraints.
In practice, Congress may also regard appropriations decisionmaking as an opportunity to directly
affect the parameters of federal government programs and activities in certain instances. This may
be because the comparatively greater frequency of appropriations decisionmaking provides a
convenient vehicle to make these policy changes. In such instances, policy provisions may be
used to impose new requirements on programs or curtail activities that otherwise might have
occurred.38 For example, the FY2014 appropriations law that funded the Department of Housing
and Urban Development (HUD) included a provision that changed how local public housing
authorities must set flat rents in their public housing programs.39 Provisions in that same law
redefined the term “extremely low-income,” which is used for targeting federal rental assistance,
to set a national floor based on the federal poverty guidelines.40
Using an annual decisionmaking process to establish funding levels, as is the case for
discretionary spending, also has general implications for both the recipients of the funds and
Congress’s legislative evaluation of those funds. The discretionary spending funding type may
cause funding levels to be less predictable from year to year for funding recipients, as programs
may be increased or decreased (or not funded at al ) each fiscal year depending on a variety of
factors mentioned above. However, Congress may decide that such an approach is appropriate for
programs (or program elements) that can make adjustments to the scope of their activities based
on the level of budgetary resources that are ultimately provided. For instance, much of the

Reauthorization of the Elem entary and Secondary Education Act: Highlights of the Every Student Succeeds Act.
35 T hese and other potential considerations that may inform Congress’s assessment of reductions to discretionary
funding levels for individual programs are summarized in Aaron Wildavsky, The Politics of the Budgetary Process, 4th
Ed. (Boston: Little, Brown, and Company, 19 84), pp. 102-108.
36 CBO cost estimates for discretionary authorizations include both a summary of any amounts explicitly authorized to
be appropriated and the amount of additional discretionary budgetary resources that might be required in the future to
implement the policies in the bill. For further information, see CBO, Frequently Asked Questions About CBO Cost
Estim ates
, available at https://www.cbo.gov/about/products/ce-faq.
37 Discretionary spending is subject to certain statutory and procedural limits. A discussion of these limits is outside the
scope of this report. For further information, see CRS Report R42388, The Congressional Appropriations Process: An
Introduction
.
38 While such language is legally effective once enacted, it is often considered to be “legislative” in nature and may be
subject to restrictions under House Rule XXI and Senate Rule XVI. For further information, see CRS Report R41634,
Lim itations in Appropriations Measures: An Overview of Procedural Issues.
39 §210, T itle II, Division L of P.L. 113-76. In most cases, this change served to increase flat -rate amounts.
40 Ibid, §238. For further information with regard to Section 210 and Section 238, see CRS Report R42734, Income
Eligibility and Rent in HUD Rental Assistance Program s: Frequently Asked Questions
.
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spending on federal government salaries and expenses is discretionary. If an agency’s
discretionary spending for salaries and expenses is less than the current program needs, that
agency might choose to reduce its number of employees, forestal hiring, or shrink expenditures
on travel and training.41 Moreover, if Congress opts for a discretionary spending approach in a
particular instance, that would al ow it to revisit an agency or program on a frequent basis (each
fiscal year) and respond to changing circumstances through the al ocation of budgetary resources.
Mandatory Spending
Mandatory spending (also referred to as “direct spending”) is usual y roughly 60% of federal
spending.42 In contrast to discretionary spending, mandatory spending usual y funds entitlement
programs, such as Social Security, Medicare, Medicaid, Temporary Assistance for Needy
Families, unemployment insurance, some veterans’ benefits, federal military and civilian
retirement and disability, and the Supplemental Nutrition Assistance Program.
For programs funded by mandatory spending, both money and policy decisions are controlled by
authorization acts. While the policy side of the law may be modified as needed, the
appropriations to fund those policies each fiscal year may be provided on a variety of schedules,
and for specified or indefinite amounts. Mandatory spending appropriations are usual y provided
in the authorization acts themselves. In some instances, however, the authorization incurs
obligations for future mandatory spending, but the necessary appropriations to finance those
obligations are enacted through the annual appropriations process. This multiplicity of potential
approaches to mandatory spending has implications for the role of authorizations and
appropriations for congressional budgetary decisions; these implications differ from those
previously discussed for discretionary spending. In addition, while mandatory spending also
navigates tradeoffs between the frequency of congressional review and the stability of the
funding, how it does so in a particular instance depends on the characteristics of the funding
structure.
Role of Authorizations and Appropriations in Mandatory Spending
Mandatory spending authorizations are responsible for determining the parameters of entities,
programs, or policies, and also for controlling the funding for those purposes. Typical y, this
funding control is accomplished by including the necessary appropriation to fund the program in
the authorization act. Mandatory appropriations themselves vary with regard to how the amount
of the appropriation is stated, and the number of fiscal years for which it is provided:
 The appropriation can be for a dollar amount that is specified or for an amount
that is determined via a formula; and
 The appropriation can be provided only for a defined fiscal year (or period of
fiscal years) or for each fiscal year into the future indefinitely.

41 Such actions occur in many agencies, for instance, when annual appropriations are not enacted by the start of the
fiscal year and its operations are financed by interim continuing appropriations; CRS Report RL34700, Interim
Continuing Resolutions (CRs): Potential Im pacts on Agen cy Operations
; and GAO, Budget Issues: Effects of Budget
Uncertainty from Continuing Resolutions on Agency Operations
, GAO-13-464T , March 13, 2013.
42 T he remainder of federal spending is classified as “discretionary” spending and interest on the debt. Fo r recent
budgetary figures and future projections, see CBO, An Update to the Budget Outlook: 2020 to 2030, September 2020,
p. 6, https://www.cbo.gov/publication/56542.
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The State Children’s Health Insurance Program (CHIP) at HHS is il ustrative of one way that
such spending may be provided in practice. CHIP is a means-tested program that provides health
coverage to targeted low-income children and pregnant women in families that have annual
income above Medicaid eligibility levels but no health insurance.43 The federal appropriation for
CHIP al otments to states is provided by the Social Security Act largely through a set dollar
amount tied to specific fiscal years:
(a) For the purpose of providing allotments to States under this section, subject to
subsection (d), there is appropriated, out of any money in the Treasury not otherwise
appropriated—…
(23) for fiscal year 2020, $23,700,000,000;
(24) for fiscal year 2021, $24,800,000,000;
(25) for fiscal year 2022, $25,900,000,000;
(26) for fiscal year 2023, for purposes of making two semi-annual allotments—
(A) $2,850,000,000 for the period beginning on October 1, 2022, and ending on
March 31, 2023; and
(B) $2,850,000,000 for the period beginning on April 1, 2023, and ending on
September 30, 2023;44
(27) for each of fiscal years 2024 through 2026, such sums as are necessary to fund
allotments to States under subsections (c) and (m); and
(28) for fiscal year 2027, for purposes of making two semi-annual allotments—
(A) $7,650,000,000 for the period beginning on October 1, 2026, and ending on
March 31, 2027; and
(B) $7,650,000,000 for the period beginning on April 1, 2027, and ending on
September 30, 2027.45 [42 U.S.C. §1397dd]
The lump sum amount for each fiscal year is divided amongst the states based on a formula
established in the law. Because the CHIP authorization only contains appropriations for specific
fiscal years, additional appropriations must be enacted if funding is to continue beyond the final
year currently specified in the law (which ends on September 30, 2027). The other important
aspect of this program’s funding structure through FY2023 and again in FY2027—that a specific
amount is appropriated—means that if that amount does not ultimately align with the needs of the
program for that fiscal year, altering the amount of that appropriation also would require the
enactment of law.46

43 For further information, see CRS Report R43949, Federal Financing for the State Children’s Health Insurance
Program (CHIP)
.
44 T he FY2023 appropriation is a combination of semiannual appropriations of $2.85 billion from Section 2104(a) of
the Social Security Act and a one-time appropriation of $20.2 billion from P.L. 115-120, which is provided for the first
six months of the fiscal year and remains available until expended.
45 T he FY2027 appropriation is a combination of semiannual appropriations of $7.65 billion from Section 2104(a) of
the Social Security Act and a one-time appropriation of such sums as are necessary to fund allotments to states under
subsections (c) and (m) from P.L. 115-123, which is provided for the first six months of the fiscal year and remains
available until expended.
46 Examples of mandatory spending for specific fiscal years and set dollar amounts include the T emporary Assistance
for Needy Families (T ANF) state entitlement to a family assistance grant ( 42 U.S.C. §603); the Child Care Entitlement
to States (CCES) (42 U.S.C. §618); the Maternal, Infant, and Early Childhood Home Visiting (MIECHV) Program (42
U.S.C. §711); and the World T rade Center Health Program Fund (42 U.S.C. §300mm -61).
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A further example of mandatory spending for a specific amount is the appropriation provided by
the Social Security Act for the HHS Technical Assistance for Tribal Child Welfare Programs
account:
There is appropriated to the Secretary, out of any money in the Treasury of the United
States not otherwise appropriated, $3,000,000 for fiscal year 2009 and each fiscal year
thereafter to carry out this subsection. [42 U.S.C. §676(c)(3)]
This amount is to be available to fund technical assistance and implementation services dedicated
to improving the “services and permanency outcomes for Indian children and their families.”47
Like the example above, in the event that $3 mil ion each fiscal year is insufficient for the needs
of the program, that amount could be altered only through the enactment of a new law; likewise,
if the amount of spending for the program is to be reduced below $3 mil ion, that also would
require a change in the law. Because the appropriation is permanent, however, there is no need for
Congress to periodical y consider mandatory spending legislation that would renew it.48
In contrast to the definite amounts in the examples above, mandatory spending also might be
provided for an indefinite amount that is based on a formula. This is often the case for mandatory
spending that is to fund benefits where the total amount of benefits that must be paid each year
and the number of individuals that are eligible for them are variable and difficult to precisely
predict. Appropriations that are based on the formula for those payments, including those that
incorporate certain types of inflation adjustments, are intended to obviate the need for Congress
to adjust the appropriation so that it is sufficient to make the payments. An example of this is the
Social Security Disability Insurance (SSDI) program, which is funded by mandatory
appropriations that are available to make payments to disabled workers who meet the eligibility
requirements and their qualified dependents.49 The SSDI formula translates a worker’s average
lifetime earnings in Social Security-covered employment into benefit payments.50 Because the
amount of the appropriation is open ended, the amount of SSDI spending each year depends on
the level of benefits that need to be paid.51 For instance, the total spending on SSDI benefits was
$144.9 bil ion in FY2019 and $144.1 bil ion in FY2020.52 If Congress wanted to change the
amount of spending for future years, legislative action to change the mechanics of the benefit
formula would be required.
Appropriated Mandatory Spending
In the examples of mandatory funding mechanisms discussed above, the authorization law
controls the amount of spending and also contains an appropriation to fund it. In contrast, for

47 For further information, see CRS Report R43458, Child Welfare: An Overview of Federal Programs and Their
Current Funding
, pp. 21-22.
48 Examples of permanent mandatory spending for set dollar amounts include three permanent appropriations that were
enacted as part of the Affordable Care Act: the Prevention and P ublic Health Fund (PPHF) (42 U.S.C. 300u-11); Center
for Medicare and Medicaid Innovation (42 U.S.C. §1315a); and Environmental Health Screening and Education (42
U.S.C. §1397h).
49 42 U.S.C. §401(b). For further information, see CRS In Focus IF10506, Social Security Disability Insurance (SSDI).
50 T he Federal Old-Age and Survivors Insurance T rust Fund operates based on a similar principle (42 U.S.C. §401 (a)).
51 T he SSDI appropriation is also contingent on the amount that is available in the fund. (See CRS Report RL33514,
Social Security: What Would Happen If the Trust Funds Ran Out? .) How the funding source of spending might affect
the amount of appropriations that are available to be expended is discussed further in the section of the report entitled
“Funding Source.”
52 Social Security Administration, Office of the Chief Actuary, “T ime Series for Selected Financial Items,” December
14, 2020, https://www.ssa.gov/OACT /ProgData/tsOps.html.
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“appropriated mandatory” spending, which is sometimes referred to as “appropriated entitlement”
spending, the authorization law controls the amount of spending but does not contain the
necessary appropriation to fund it. Instead, such appropriations are provided through the annual
appropriations process. The appropriated mandatory funding type is used for a number of federal
programs, including the Supplemental Nutrition Assistance Program (SNAP), Grants to States for
Medicaid, the Trade Adjustment Assistance for Workers program (TAA), Special Benefits for
Disabled Coal Miners, and veterans’ disability compensation and pensions.
Appropriated mandatory authorizations establish the program or activity but require that future
funding be provided separately. This is because the authorization establishes an entitlement53 to
payments or other funding requirement that such payments be made. The amount of the payments
may be based on an eligibility criteria or payment formula (such as in the example of the SSDI
program above) or may be an amount specified in the statute. This is discussed further below.
However, that entitlement or other requirement is not accompanied by appropriations language
that provides the means for financing those payments. This creates a need for the authority to be
enacted in appropriations acts.
While the funding for appropriated mandatory spending is provided in annual appropriations acts,
those acts do not control the level of appropriations that are provided therein. This is because the
level of appropriated mandatory spending, like other entitlements, is derived from authorization
law, and the amount provided in appropriations acts is based on meeting this level. In other
words, the authorizing statute for an appropriated entitlement establishes a legal obligation to
make payments, and the funding in annual appropriations acts is provided as a means to fulfil
that legal financial obligation.
In some cases, the total amount of the appropriation for an appropriated mandatory spending
program is specified in authorizing statute, as exemplified by the HHS Social Services Block
Grant (SSBG). The broad purpose of the SSBG funding for states and territories is to encourage
economic self-sufficiency and support among families; prevent or remedy neglect, abuse, and
exploitation of children and adults; prevent or reduce inappropriate institutional care by
supporting community- and home-based care; and secure referral or admission for institutional
care when other forms of care are not appropriate. States and territories use SSBG funds to
support a wide variety of social services, including child care, foster care, and special services for
the disabled. The authorizing statue for the SSBG specifies the following with regard to the
funding for the program:
(a)(1) Each State shall be entitled to payment under this subtitle for each fiscal year in an
amount equal to its allotment for such fiscal year, to be used by such State for services
directed at the goals set forth in section 1397 of this title, subject to the requirements of
this division.
(b) The Secretary shall make payments in accordance with section 6503 of title 31, United
States Code, to each State from its allotment for use under this division. [42 U.S.C. §1397a]
The authorizing statute further specifies that the total amount of these payments to states and
territories for FY2001 and each fiscal year thereafter shal be $1.7 bil ion (42 U.S.C. §1397b), but
it does not provide an appropriation for that purpose. Instead, the SSBG appropriation is provided
each fiscal year through the annual appropriations process, as was the case for FY2020:

53 Entitlements, including appropriated entitlements, are programs that require payments to persons, state or local
governments, or other entities if specific eligibility criteria established in the authorization law are met. Entitlement
payments are legal obligations of the federal government, and eligible beneficiaries may have legal recourse if full
payment under the law is not provided.
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The following sums in this Act are appropriated, out of any money in the Treasury not
otherwise appropriated, for the fiscal year ending September 30, 2020. [P.L. 116-94, §5]
For making grants to States pursuant to section 2002 of the Socia l Security Act,
$1,700,000,000. [P.L. 116-94, Division A, Title II]
Because the authorization law controls the amount of the SSBG appropriation and specifies that
amount in statute, the role of appropriations acts each fiscal year is to provide funding sufficient
to satisfy that amount.54
For other appropriated mandatory programs for which the authorization provides a formula,
determining the amount and structure of the appropriation can be more complicated. An example
of appropriated mandatory spending based on a formula is the Supplemental Security Income
(SSI) program, which provides a basic level of income support to needy aged, blind, or disabled
individuals.55 Benefit levels and eligibility are based on an individual’s citizenship or immigration
status, age, income, and other criteria. The SSI authorization does not place an aggregate limit on
benefits:
For the purpose of establishing a national program to provide supplemental security income
to individuals who have attained age 65 or are blind or disabled, there are authorized to be
appropriated sums sufficient to carry out this title. [42 U.S.C. §1381]
Because the total number of SSI beneficiaries and the level of payments to which they are entitled
vary from year to year, the funding that is provided through the annual appropriations process is
based on a projection of benefits for the relevant fiscal year. The appropriation for FY2020 was as
follows:
The following sums in this Act are appropriated, out of any money in the Treasury not
otherwise appropriated, for the fiscal year ending September 30, 2020. [P.L. 116-94, §5]
For carrying out titles XI and XVI of the Social Security Act, section 401 of Public Law
92-603, section 212 of Public Law 93-66, as amended, and section 405 of Public Law 95-
216, including payment to the Social Security trust funds for administrative expenses
incurred pursuant to section 201(g)(1) of the Social Security Act, $41,714,889,000, to
remain available until expended ... Provided further, that not more than $101,000,000 shal
be available for research and demonstrations under sections 1110, 1115, and 1144 of the
Social Security Act, and remain available through September 30, 2022.
For making, after June 15 of the current fiscal year, benefit payments to individuals under
title XVI of the Social Security Act, for unanticipated costs incurred for the current fiscal
year, such sums as may be necessary. [P.L. 116-94, Division A, Title IV]
The SSI appropriation is structured to include a definite amount for SSI benefits and
administrative costs, and also an indefinite appropriation for any costs incurred for the current
fiscal year after June 15.56 This second component al ows the Social Security Administration

54 In previous fiscal years, and most recently in FY2013, additional appropriations above the amount specified in 42
U.S.C. §1397b have been provided through the appropriations process. For a discussion of such “ changes in mandatory
spending,” see “ General Implications” within this section of the report and footnote 60. For further information about
the SSBG program, including a comparison of amounts authorized and appropriated, see CRS In Focus IF10115, Social
Services Block Grant
.
55 T he entitlement to SSI benefits is in 42 U.S.C. §1381a. (“ Every aged, blind, or disabled individual who is determined
under part A of this subchapter to be eligible on the basis of his income and resources shall, in accordance with and
subject to t he provisions of this subchapter, be paid benefits by the Commissioner of Social Security. ”) For further
information, see CRS In Focus IF10482, Supplemental Security Income (SSI).
56 SSI also is usually provided an advance appropriation for the first quarter of the next fiscal year. T he concept of
advance appropriations, including potential rationales for them, is discussed in CRS Report R43482, Advance
Appropriations, Forward Funding, and Advance Funding: Concepts, Practice, and Budget Process Considerations
.
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(SSA) to continue to pay SSI benefits in the event that benefit obligations are greater than
expected during the last months of the fiscal year. (In the event that the definite appropriation is
greater than the amount that ultimately is needed for benefits, the excess amount of the
appropriation would go unspent.)
General Implications
Unlike the role of authorizations for discretionary spending, mandatory spending authorizations
control both the policy and spending aspects of decisionmaking. This approach has particular
implications for congressional budgetary decisionmaking because both money and policy
decisions general y occur within the same process. For most mandatory spending, the authorizing
committees both control the program and directly provide the spending. However, for
appropriated mandatory spending, although the appropriations committees do not control the
level of spending, annual appropriations laws are used to provide the necessary appropriations to
finance the obligations already incurred by authorization acts.
The timing of authorization decisions for mandatory spending may be affected by the need to
alter or extend the funding. For example, the Balanced Budget Act of 1997 (P.L. 105-33)
established special diabetes programs at the Indian Health Service and the National Institutes of
Health and funded each of them with mandatory appropriations for FY1998-FY2002 (42 U.S.C.
§§254c-2 and c-3). In 2000, the amount of the initial appropriation was increased and further
appropriations were provided for FY2003 (P.L. 106-554). Next, appropriations were extended for
five fiscal years, through FY2008 (P.L. 107-360). Since that time, further appropriations
extensions have been enacted for comparatively shorter time intervals—between one or two fiscal
years at a time—necessitating congressional action to renew them on a more frequent basis.57
When mandatory spending is permanent, changes to the amount or duration of that spending may
stil occur but are typical y enacted on an as-needed basis. For example, the Patient Protection
and Affordable Care Act (ACA; P.L. 111-148, as amended) established the Prevention and Public
Health Fund at HHS as a permanent mandatory appropriation in 2010 (see 42 U.S.C. §300u-11).58
That permanent appropriation was reduced for various fiscal years during the period of FY2013
through FY2025.59 In practice, the annual enactment of appropriations may provide Congress an
opportunity to further specify or make adjustments to the appropriated mandatory spending
programs that are funded therein, as wel as mandatory appropriations in authorization acts. In
some instances, provisions are included in appropriations acts that impose additional program
requirements (or waive existing ones), provide additional authorities, or set aside portions of the
mandatory appropriation for certain purposes.60 In the SSI example above, the appropriations

57 For a list of these extensions, see CRS Report R46331, Health Care-Related Expiring Provisions of the 116th
Congress, Second Session
.
58 For further information about the Prevention and Public Health Fund, see CRS Report R44796, The ACA Prevention
and Public Health Fund: In Brief
.
59 T he first of these laws was the Middle Class T ax Relief and Job Creation Act of 2012 ( P.L. 112-96); the most recent
is the Bipartisan Budget Act of 2018 (P.L. 115-123).
60 When appropriations provisions have the effect of altering the level of spending that would otherwise be provided in
or pursuant to the underlying authorization laws, such provisions are referred to as “ changes in mandatory program
spending” or CHIMPS. Such provisions can affect the level of appropriated mandatory spending and mandatory
appropriations that are provided in authorization acts. For example, in recent year s CHIMPS provisions have reduced
the levels of mandatory spending for the Crime Victims Fund and various agriculture conservation programs. For
further information, see CRS Report R42672, The Crim e Victim s Fund: Federal Support for Victim s of Crim e; and
CRS In Focus IF10041, Reductions to Mandatory Agricultural Conservation Program s in Appropriations Law.
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language includes a limit of $101 mil ion for research and demonstrations, which is in addition to
the program requirements in the authorization law.61
In general, mandatory spending decisionmaking is decentralized within Congress, and the total
amount of spending each fiscal year that is a result of that decisionmaking depends on a number
of factors. Unlike discretionary spending, which is entirely controlled by the House and the
Senate appropriations committees, there is no one committee, lawmaking decision, or process that
establishes an aggregate level of mandatory spending each year.62 Instead, the spending that
occurs each fiscal year is due to an accumulation of mandatory funding decisions that were made
as those authorization laws were enacted, sometimes a number of years in the past.63 In addition,
while the exact dollar amount of funding for some mandatory spending programs is specified in
the authorization laws, others are funded via a formula. For formulaic mandatory spending,
factors outside the direct control of Congress might affect the number of beneficiaries who are
eligible for the program in a given year and the level of payments that must be made.64 This also
has an effect on the total amount of mandatory spending that occurs during that year.
As mentioned previously, one inherent difference between discretionary and mandatory spending
is that mandatory spending funding decisions tend to be made with a comparatively longer time
horizon. This has implications for the tradeoff between stability in funding for beneficiaries and
the legislative opportunity for Congress to reevaluate.65 Congress may choose to fund a program
via mandatory spending if it wants the funding levels to be more predictable and to ensure that
such funding wil be provided in future fiscal years. This is especial y important if programs
involve an entitlement to benefits. For instance, in recent congressional debates over spending on
Medicare many observers have stated that any changes to the spending that would have
ramifications for the benefits should be phased in for future beneficiaries.66
Although the mandatory spending mechanism tends to involve budgetary decisions that are made
on a longer time horizon than discretionary spending, there is variation in the degree to which this
is the case. If a mandatory funding mechanism must be renewed periodical y because it only
provides appropriations for a set number of fiscal years at a time, this has the potential to create
an opportunity for Congress to reevaluate both the program and the funding before the funding
expires. The number of years for which funding is provided would usual y correspond to the
frequency with which budgetary decisions are expected to occur. The approach of providing
appropriations for set fiscal years, however, also has the potential to make funding less
predictable for the funding recipients, even if Congress intends that the funding wil be extended

61 Another example of this type of language can be found in the Centers for Medicare & Medicaid Services—grants to
states for Medicaid account (“ Payment under such title XIX may be made for any quarter with respect to a State plan or
plan amendment in effect during such quarter, if submitted in or prior t o such quarter and approved in that or any
subsequent quarter.”). While such language is legally effective once enacted, it is usually considered to be “ legislative”
in nature and may be subject to restrictions under House Rule XXI and Senate Rule XVI. For further information, see
CRS Report R41634, Lim itations in Appropriations Measures: An Overview of Procedural Issues.
62 For a discussion of the issues associated with imposing limits on mandatory sp ending, see CRS Report R41938,
Statutory Lim its on Total Spending as a Method of Budget Control.
63 Alan Schick, The Federal Budget: Politics, Process, and Policy, 3rd Ed. (Washington, D.C.: Brookings Institution
Press, 2007), pp. 209- 212.
64 Allen Schick, Congress and Money: Budgeting Spending and Taxing, (Washington, D.C.: T he Urban Institute,
1980), pp. 216-217.
65 Ibid, pp. 306-307.
66 2020 Annual Report of the Boards of Trustees of the Federal Hospital I nsurance and Federal Supplementary
Medical Insurance Trust Funds
, April 22, 2020, p. 41. For a more general discussion, see Alan Schick, The Federal
Budget: Politics, Process, and Policy
, 3rd Ed. (Washington, D.C.: Brookings Institution Press, 2007), pp. 313-315.
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before it lapses.67 At the other end of the spectrum, when mandatory funding is provided
permanently there is no scheduled lapse in appropriations to encourage legislative action by a
particular deadline, even though Congress can legislatively revisit the funding as frequently as it
wants.
Mixed Approaches
While individual programs tend to be funded with either mandatory or discretionary spending,
some programs (or closely related purposes) are funded with both types of spending. Mandatory
and discretionary approaches may be used to fund identical purposes, closely related purposes
within a program, or multiple programs with closely related missions. Examples of programs that
are funded with a mixed approach include the Federal Pel Grant program at the Department of
Education (ED),68 as wel as the MaryLee Al en Promoting Safe and Stable Families Program69
and the various programs at HHS that seek to prevent teen pregnancy.70 In addition, a number of
entitlement programs are structured so that the benefits are mandatory spending but the
administration of the benefits is funded through discretionary spending.71 Both budgetary and
policy considerations may lead Congress to prefer a mixed approach to fund a particular program
or purpose. In addition to the tradeoffs between funding predictability and legislative evaluation
of the funding, the choice of a mixed approach has potential implications for both the
authorization and appropriations processes, as each wil have a role in determining how much
funding wil be provided.
Discretionary and Mandatory Spending for Identical or Related Purposes
Both mandatory and discretionary funds may be provided for the same program or purpose, or for
purposes that overlap with one another. Sometimes this occurs for reasons that are budgetary in
nature. An example is the federal Health Center Program at HHS, which awards grants to support
outpatient primary care facilities that provide care to primarily low -income individuals or
individuals located in areas with few health care providers.72 Total funding for this program has
increased over the past decade—from $1.7 bil ion in FY2005 to $5.6 bil ion in FY2020.73 This
increase was initial y due to growth in discretionary appropriations, which had historical y been

67 T he impending expiration of a mandatory spending program can require that temporary extensions be enacted to
prevent the spending from lapsing before Congress and the President can agree to more lasting program changes. See,
for example, the multiple extensions to the T emporary Assistance for Needy Families block grant program listed in
CRS Report R44668, The Tem porary Assistance for Needy Fam ilies (TANF) Block Grant: A Legislative History .
68 20 U.S.C. §1070a. For further information about the Federal Pell Grant program, see CRS Report R45418, Federal
Pell Grant Program of the Higher Education Act: Prim er
.
69 42 U.S.C. §§634, 636, and 637. For further information about the MaryLee Allen Promoting Safe and Stable
Families Program, see CRS Report R43458, Child Welfare: An Overview of Federal Program s and Their Current
Funding
.
70 For further information about the HHE programs that seek to prevent teen pregnancy, see CRS In Focus IF10877,
Federal Teen Pregnancy Prevention Program s.
71 See, for example, the Federal Employees Compensation Act (5 U.S.C. §§8101 et seq.) and Unemployment Insurance
(42 U.S.C. §§501 and 502). For further information, see CRS Report R42107, The Federal Em ployees’ Com pensation
Act (FECA): Workers’ Compensation for Federal Employees
.
72 T he Health Center Program is authorized in Section 330 of the Public Health Service Act (42 U.S.C. §§201 et seq.)
and administered by the Health Resources and Services Administration within HHS. For further information, see CRS
Report R43937, Federal Health Centers: An Overview.
73 T his figure does not include additional FY2020 mandatory and discretionary funds related to the COVID -19
pandemic. For a discussion of these, see CRS Insight IN11367, Federal Health Centers and COVID-19.
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its only funding source. Starting in FY2011, however, the ACA created the Community Health
Center Fund (CHCF), which included a total of $9.5 bil ion in mandatory appropriations between
FY2011 and FY2015 for health center operations. The purpose of this new mandatory funding
was to assure that budgetary resources would be available for the program at levels that were
increasingly higher than FY2008, even if discretionary appropriations ultimately were
eliminated.74 The full-year funding extension for FY2020, enacted in Section 3831 of
Coronavirus Aid, Relief, and Economic Security Act (CARES Act; P.L. 116-136), provided $4
bil ion for that fiscal year.75
A mixed funding approach for a program also may be adopted for reasons that are more
programmatic in nature. An example of this is the HHS Child Care and Development Fund
(CCDF), which provides subsidies to assist low-income families in obtaining child care so that
parents can work or participate in education or training activities.76 Prior to 1996, four separate
federal programs specifical y supported child care for low-income families. Three of these were
associated with the cash welfare system and funded with mandatory spending. The fourth
program was the Child Care and Development Block Grant (CCDBG, discussed above), which
was funded with discretionary spending and designed to support child care for low-income
families who were not connected to the cash welfare system. The 1996 welfare reform law
repealed the three mandatory spending child care programs and created a new consolidated block
of mandatory funding, the Child Care Entitlement to States. Like the three earlier programs, the
new block grant was largely targeted toward families on, leaving, or at risk of receiving welfare
(now Temporary Assistance for Needy Families).77 In addition, the 1996 law instructed that the
new mandatory funding be transferred to each state’s lead agency managing the discretionary
CCDBG funding and be administered according to CCDBG rules. One of the purposes of the
consolidation was to address concerns about the effectiveness and efficiency of child care
programs. The four previous child care programs had different rules regarding eligibility, time
limits on the receipt of assistance, and work requirements. The policy changes and new approach
to funding were intended to streamline the federal role, reduce the number of federal programs
and conflicting rules, and increase the flexibility provided to states.
General Implications
A portion of the spending for programs that receive a mixed funding approach is subject to the
annual appropriations process, while the rest is subject to congressional review on a longer time
horizon. This general y means that some of the funding for a program or purpose—the mandatory
spending portion—wil be more predictable than the discretionary spending portion. Combining
these two approaches can provide some medium- or long-term predictability in budgetary
resources for the mandatory spending purposes, but al ow annual reevaluation of the portion of
the spending that is provided through the appropriations process. This is particularly the case for
programs where mandatory spending funds the benefits themselves, but discretionary spending
funds administration of the benefits. For example, the SSA’s administrative costs associated with
the Old-Age and Survivors Insurance (“Social Security,” OASI), SSDI, and SSI programs (among
others) are funded through the Limitation on Administrative Expenses (LAE) discretionary

74 CRS Report R43911, The Community Health Center Fund: In Brief.
75 T he funding extensions enacted prior to and after the full-year funding provided in the CARES Act are detailed in
CRS Report R46331, Health Care-Related Expiring Provisions of the 116th Congress, Second Session.
76 T his summary of the historical development of the CCDF is largely drawn from CRS Report R44528, Trends in
Child Care Spending from the CCDF and TANF
. Please see this report for further informat ion.
77 P.L. 104-193. The mandatory spending was consolidated and provided under Section 418 of the Social Security Act .
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account.78 As a consequence of this funding structure, Congress can use the opportunity provided
by the annual appropriations process to provide instructions as to what administrative activities
SSA should pursue or curtail. For instance, the explanatory statement that accompanied the
FY2020 LAE appropriation encouraged SSA to engage with states to explore options for
modernizing the Disability Case Processing System.79
One notable difference between mixed approaches and the others discussed in this report is that
both the authorization and appropriations processes control aspects of the funding. When both
types of spending fund the same purposes, what is available through mandatory spending can
inform what is provided through the annual appropriations process to supplement that funding.
For example, in the case of the federal Health Center Program the mandatory funding through the
CHCF that was added in FY2011 assured a level of funding for that program that would continue
to increase above the FY2008 level. Since that time, discretionary appropriations have slowly
decreased from a high of $2.2 bil ion in FY2011 to $1.6 bil ion in FY2020. Alternatively, it is
possible that the separate funding decisions made through the authorization and appropriations
processes can reflect different congressional intentions or program priorities, especial y because
mandatory and discretionary spending are subject to different budget control mechanisms.80 In
addition, if a mandatory spending funding stream is only provided for a certain number of fiscal
years and not renewed after it lapses, this can create a sudden decline in budgetary resources for a
program. For both of these reasons, the combination of mandatory and discretionary spending for
a program has the potential to result in inconsistent funding outcomes from year to year.
Funding Sources
In general, funding mechanisms have two categories of funding sources, as il ustrated by Figure
2
.
(The programs listed in Figure 2Office of Apprenticeship (Apprenticeship); Food and Drug
Administration (FDA) Human Drugs Program; Manufactured Housing Fees; Maternal, Infant,
and Early Childhood Home Visiting program (MIECHV); Medicare Part B; and Social Security
Disability Insurance (SSDI)—are some of the examples of funding sources discussed in this
section of the report.) The first funding source category is the General Fund of the Treasury (GF),
which is the default place where federal government collections81 are deposited82 and thereafter

78 For further information about this account, see Social Security Administration, Justification of Estimates for
Appropriations Com m ittees, FY2021,
“ Limitation on Administrative Expenses,” https://www.ssa.gov/budget/.
79U.S. Congress, House Committee on Appropriations, Further Consolidated Appropriations Act, 2020, committee
print, on H.R. 1865/P.L. 116-94, 116th Cong., 2nd sess., January 2020, CP 38-679 (Washington: GPO, 2020), p. 173,
https://www.congress.gov/committee-print/116th-congress/house-committee-print/38679.
80 In general, budget control mechanisms that apply to mandatory and discretionary spending are outside the scope of
this report. For further information, see CRS Report 98-721, Introduction to the Federal Budget Process; and CRS
Report R42388, The Congressional Appropriations Process: An Introduction .
81 T his report does not discuss the authority that provides for federal collections. In general, collections come from two
different types of governmental actions. First, there are collections that arise from the government’s sovereign power to
tax or otherwise compel payments for certain purposes. T his type of collection includes taxes, duties, fines, and
penalties, and is usually referred to as “revenue” for the purposes of the congressional budget process. T he second type
of collection arises from the payments for the goods and services that the government provides to the public or other
government entities. T hese types of collections, which result from these business-like transitions of the government,
include user fees, premiums, and royalties for the use of government -owned resources. For further information about
the distinction between revenue and other types of collections, see CRS Report 98-471, Revenue Legislation in the
Congressional Budget Process
; and CRS Report RL31399, The Origination Clause of the U.S. Constitution:
Interpretation and Enforcem ent
.
82 T he Miscellaneous Receipts Act, codified at 31 U.S.C. §3302(b), requires that unless otherwise provided in statute
“an official or agent of the Government receiving money for the Government from any source shall deposit the money
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are available to be used by the Treasury to meet spending obligations. The second category is
dedicated collections that fund specific programs or activities and are not deposited into the GF.
Those collections may be authorized on a permanent basis or for a specified period of time. Both
types of funding sources may be used to fund either mandatory or discretionary spending. In the
case of dedicated collections, the authority to make the collections and the authority to expend
them may be controlled by the same law or by different laws.
Figure 2. Illustration of Funding Sources

Source: CRS.
Notes: The examples in this figure are discussed in the report section that fol ows. Apprenticeship=Office of
Apprenticeship; MIECHV= Maternal, Infant, and Early Childhood Home Visiting program; SSDI= Social Security
Disability Insurance; FDA= Food and Drug Administration.
This section explains the two types of funding sources and how they fit within the framework of
discretionary and mandatory spending. Examples of each of these funding source types are
included to il ustrate the variety of options that exist across the federal government. Because a
program may have more than one type of funding source, this section also includes a discussion
of mixed sources. The general implications of each type of funding source for budgetary
decisionmaking in Congress, and their tradeoffs between frequent congressional review and
funding predictability, are also summarized.
General Fund of the Treasury
When funds are collected by an entity within the government, unless that entity has been given
the legal authority to retain the funds, federal law general y requires that the funds be deposited
into the GF.83 Once deposited, those funds are comingled within the GF and become budgetary
resources that are available to meet obligations incurred pursuant to appropriations from that
funding source. In essence, they are used to pay for spending out of the GF.84
The GF is a funding source for both discretionary and mandatory spending. In the case of
discretionary spending, the GF is the default source of funding for al appropriations in
appropriations measures, unless otherwise specified. An example of discretionary spending from
the GF, as noted earlier in this report, is the appropriation for the National Apprenticeship Act
(DOL):

in the T reasury as soon as practicable without deduction for any charge or claim .” T he authority to collect and retain
funds is discussed further in the report section “ Dedicated Collections.”
83 Ibid.
84 T he GF also is funded through proceeds from the sale of debt. For more information about the accounting associated
with the GF, see the explanation provided by the Bureau of the Fiscal Service at the Department of the T reasury (“The
General Fund”), https://www.fiscal.treasury.gov/general-fund/.
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The following sums in this Act are appropriated, out of any money in the Treasury not
otherwise appropriated, for the fiscal year ending September 30, 2020. [P.L. 116-94, §5]
$175,000,000 to expand opportunities through apprenticeships only registered under the
National Apprenticeship Act and as referred to in section 3(7)(B) of the WIOA, to be
available to the Secretary to carry out activities through grants, cooperative agreements,
contracts and other arrangements, with States and other appropriate entities. [P.L. 116-94,
Division A, Title I]
In this example, the provision in Section 5 (at the beginning of the appropriations act) provides
that the appropriations in the act are of “any money in the Treasury not otherwise appropriated”
(i.e., the GF). Because the appropriation for the National Apprenticeship Act that appears later in
the text does not specify an alternative funding source, the source of the appropriation is the GF.
The GF also may be the funding source of mandatory appropriations. An example of a program
funded in this manner is the Maternal, Infant, and Early Childhood Home Visiting program
(MIECHV) at HHS, which supports home visiting services for families with young children who
reside in communities that have concentrations of poor child health and other risk indicators.85
The mandatory appropriation for this program in the Social Security Act is as follows:
(1) Out of any funds in the Treasury not otherwise appropriated, there are appropriated
to the Secretary to carry out this section ...
(H) for each of fiscal years 2017 through 2022, $400,000,000. [42 U.S.C. §711(j)]
Note that because the funding source for MIECHV also is the GF, the appropriations language for
that program is similar to the language for the National Apprenticeship Act (above).
Dedicated Collections
While the revenues or other types of collections that are received by federal government entities
are usual y deposited in the GF by default, sometimes the law instead directs that they be
dedicated to a specific purpose, which is referred to for the purposes of this report as “dedicated
collections.” (In some cases, the law may direct that these col ections be made by the agency
responsible for carrying out that purpose, or by the Department of the Treasury itself.) Such
collections are usual y credited to and expended from places in the Treasury other than the GF,
such as a specific account.86 Accounts in the Treasury that are separate from the GF and contain
funds that are specified in law for certain purposes are sometimes referred to as “special fund” or
“trust fund” accounts.87 A funding source housed in one of these accounts may be used to fund
either mandatory or discretionary spending. How a collection is structured and the type of law
that controls it vary depending on whether the collection supports mandatory or discretionary
spending.

85 For further information, see CRS Report R43930, Maternal, Infant, and Early Childhood Home Visiting (MIECHV)
Program : Background and Funding
.
86 T hese types of accounts might be established for the purposes of receiving collections (receipt accounts) or for the
purposes of both receiving and expending collections (expenditure accounts).
87 T rust fund accounts are designated as such by law, and a discussion of their defining characteristics is outside the
scope of this report. For further information, see CRS Report R41328, Federal Trust Funds and the Budget.
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Mandatory Spending
In general, if a mandatory spending program is funded by a dedicated collection, the authorization
act provides three essential authorities:
 the authority to make the collection;
 the authority to retain the collection; and
 the authority to expend the collection for the purposes of that program.
An example of a mandatory spending dedicated collection is the fees that are collected and
expended by the United States Citizen and Immigration Service (USCIS) for its adjudication of
immigration and naturalization petitions.88 The legal authority to collect fees associated with that
purpose is provided by the Immigration and Nationality Act of 1952 (INA).89 Currently, the INA
provides general authority to establish the level of such fees (subject to certain restrictions) and
directs that al fees that are collected be deposited in a particular account (the “Immigration
Examinations Fee Account”), and not the GF:
Notwithstanding any other provisions of law, all adjudication fees as are designated by the
Attorney General90 in regulations shall be deposited ... into a separate account entitled
‘‘Immigration Examinations Fee Account’’ in the Treasury of the United States, whether
collected directly by the Attorney General or through clerks of courts.
Provided further, that fees for providing adjudication and naturalization services may be
set at a level that will ensure recovery of the full costs of providing all such services,
including the costs of similar services provided without charge to asylum applicants or
other immigrants. Such fees may also be set at a level that will recover any additional costs
associated with the administration of the fees collected. [8 U.S.C. §1356(m)]
In addition, the INA contains the authority to expend those fees for certain adjudication and
naturalization-related activities.
All deposits into the ‘‘Immigration Examinations Fee Account’’ shall remain available
until expended to the Attorney General to reimburse any appropriation the amount paid out
of such appropriation for expenses in providing immigration adjudication and
naturalization services and the collection, safeguarding and accounting for fees deposited
in and funds reimbursed from the ‘‘Immigration Examinations Fee Account.’’ [8 U.S.C.
§1356(n)]
Note that this mandatory appropriation is not explicitly limited as to the dollar amount that can be
expended. Consequently, the amount ultimately expended in a fiscal year wil depend on the total
amount available in the account and how much of that amount USCIS decides to expend on the
functions that are funded by those collections. In addition, while the authority to make and
expend the collections is permanent, that authority could be altered through the enactment of
law.91

88 For further information, see CRS Report R44038, U.S. Citizenship and Immigration Services (USCIS) Functions and
Funding
.
89 P.L. 82-414, §281.
90 T he responsibilities conferred on the Attorney General by Section 1356(m) are now held by the Sec retary of
Homeland Security.
91 A further example of collections that fund mandatory spending is the H-1B education and training fee that supports
job training activities by the Department of Labor pursuant to Section 414 of the American Competitiveness an d
Workforce Improvement Act of 1998, as amended. T he authority to collect the fee is codified at 8 U.S.C. §1356(s)(2)
and DOL’s use of the funds is governed by 29 U.S.C. §3224a.
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Mandatory spending for benefits also may be funded through dedicated collections, as it is in the
SSDI program (discussed earlier in this report).92 The Social Security Act provides that the
primary funding source for SSDI—Federal Insurance Contributions Act (FICA) taxes and Self-
Employment Contributions Act (SECA) taxes—be deposited in the Federal Disability Insurance
(DI) Trust Fund. It also appropriates those amounts for the purposes of the program:
There is hereby created on the books of the Treasury of the United States a trust fund to be
known as the “Federal Disability Insurance Trust Fund”. The Federal Disability Insurance
Trust Fund shall consist of such gifts and bequests as may be made as provided in
subsection (i)(1) of this section, and such amounts as may be appropriated to, or deposited
in, such fund as provided in this section. There is hereby appropriated to the Federal
Disability Insurance Trust Fund for the fiscal year ending June 30, 1957, and for each fiscal
year thereafter, out of any moneys in the Treasury not otherwise appropriated, amounts
equivalent to 100 per centum of ...
(1)(S) [FICA taxes] 2.37 per centum of the wages (as so defined) paid after December
31, 2015, and before January 1, 2019, and so reported, and (T) 1.80 per centum of the
wages (as so defined) paid after December 31, 2018, and so reported.
(2)(S) [SECA taxes] 2.37 per centum of the amount of self-employment income (as so
defined) so reported for any taxable year beginning after December 31, 2015, and
before January 1, 2019, and (T) 1.80 per centum of the amount of self-employment
income (as so defined) so reported for any taxable year beginning after December 31,
2018. [42 U.S.C. §401(b)]
As is the case for the Immigration Examinations Fee Account, the amount that is expended from
the DI trust fund each fiscal year cannot exceed the total collections that are in the fund, and also
wil depend on how much is needed to pay the benefits that are funded through the collections.
An important difference between the two examples, however, is that the formula for the DI trust
fund collections is specified (e.g., 1.8% of wages and self-employment income after December
31, 2018) and not left up to the relevant agency to determine. If the formula for the collections
does not yield a sufficient level of collections to pay the benefits that are owed, legislative action
would be required to alter it.93
Discretionary Spending
Unlike dedicated collections that fund mandatory spending, the authority to expend dedicated
collections that fund discretionary spending is provided in appropriations acts. The authority to
make those collections, however, could be provided in either authorization or appropriations acts.
In other words, discretionary spending that is funded through dedicated collections can be
configured one of two ways:

92 For further information, see CRS Report RL33028, Social Security: The Trust Funds.
93 See CRS Report RL33514, Social Security: What Would Happen If the Trust Funds Ran Out? . Further examples of
dedicated collections that are the funding source for mandatory spending benefits include the Federal Old-Age and
Survivors Insurance T rust Fund (42 U.S.C. §401(a)), and the Railroad Retirement Account (45 U.S.C. §231n). An
example of appropriated mandatory spending that is funded via dedicated collections is the Black Lung Disability T rust
Fund (26 U.S.C. §9501); for further information, see CRS Report RL33028, Social Security: The Trust Funds; CRS
Report RS22350, Railroad Retirem ent Board: Retirem ent, Survivor, Disability, Unem ploym ent, and Sickness Benefits;
and CRS Report R45261, The Black Lung Program , the Black Lung Disability Trust Fund, and the Excise Tax on Coal:
Background and Policy Options
.
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 the authority to collect is provided by an authorization act on either a time-
limited or permanent basis, but the authority to expend is provided each fiscal
year in an appropriations act; or
 the authority to collect and the authority to expend is provided each fiscal year in
an appropriations act.
Manufactured Housing Fees Trust Fund, which funds the Manufactured Housing Standards
Program, is an example of both types of configurations.94 The National Manufactured Housing
Construction and Safety Standards Act of 1974 authorizes the Department of Housing and Urban
Development (HUD) to receive dedicated collections (fees paid by manufacturers) to pay for the
cost of monitoring and enforcement activities related to standards for manufactured housing:
In carrying out inspections under this chapter, in developing standards and regulations
pursuant to section 5403 of this title, and in facilitating the acceptance of the affordability
and availability of manufactured housing within the Department, the Secretary may- (1)
establish and collect from manufactured home manufacturers a reasonable fee, as may be
necessary to offset the expenses incurred by the Secretary in connection with carrying out
the responsibilities of the Secretary under this chapter. [42 U.S.C. §5419(a)].
The act also specifies al owable uses for the fees, which include conducting inspections and
monitoring, providing funding to the states for the administration and implementation of
approved state plans, and staffing for the program. Further, the act establishes the Manufactured
Housing Fees Trust Fund, provides that fees collected under this act must be deposited into the
fund, and makes their availability for expenditure subject to the annual appropriations process:
There is established in the Treasury of the United States a fund to be known as the
“Manufactured Housing Fees Trust Fund” for deposit of amounts from any fee collected
under this section. Such amounts shall be held in trust for use only as provided in this
chapter.
Amounts from any fee collected under this section shall be available for expenditure only
to the extent approved in advance in an annual appropriations Act. [42 U.S.C. §5419(e)]
Annual appropriations acts make a specific amount of the collections available for expenditure
each fiscal year, as il ustrated by the FY2020 appropriation:95
The following sums in this Act are appropriated, out of any money in the Treasury not
otherwise appropriated, for the fiscal year ending September 30, 2020. [P.L. 116-94, §5]
For necessary expenses as authorized by the National Manufactured Housing Construction
and Safety Standards Act of 1974 (42 U.S.C. 5401 et seq.), up to $13,000,000, to remain
available until expended, of which $13,000,000 is to be derived from the Manufactured
Housing Fees Trust Fund [P.L. 116-94, Division H, Title II]96

94 T he activities associated with the Manufactured Housing Standards Program are summarized in the FY2020
Congressional Budget Justification for the program, available at https://www.hud.gov/sites/dfiles/CFO/documents/
30_FY21CJ_Program_MHFT F.pdf.
95 Other examples of provisions or entities where the authorization act provides the authority for dedicated collections
that fund discretionary spending include the private health insurance collections ma de by the Indian Health Service
(IHS) to reimburse the cost of services (42 U.S.C. §1641), the Department of Veterans Affairs Medicare Care
Collections Fund (38 U.S.C. §1729A), the fees collected by the Patent and T rademark Office (35 U.S.C. §§41, 42), and
the Harbor Maintenance T rust Fund (26 U.S.C. §9505). For further information, see CRS Report R44040, Indian
Health Service (IHS) Funding: Fact Sheet
; CRS Report R44241, Departm ent of Veterans Affairs FY2016
Appropriations: In Brief
; CRS Report RS20906, U.S. Patent and Tradem ark Office Appropriations Process: A Brief
Explanation
; and CRS Report R43222, Harbor Maintenance Finance and Funding.
96 In some previous fiscal years, such as FY2014, the Manufactured Housing Standards Program has been provided
funds from the GF, in addition to the authority to expend collections in the Manufactured Housing Fees T rust Fund.
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Annual appropriations acts also provide HUD with authority to both collect and expend an
additional fee for the program:
Provided further, That for the dispute resolution and installation programs, the Secretary
of Housing and Urban Development may assess and collect fees from any program
participant: Provided further, That such collections shall be deposited into the Fund, and
the Secretary, as provided herein, may use such collections, as well as fees collected under
section 620, for necessary expenses of such Act. [P.L. 116-94, Division H, Title II]
In sum, appropriations language provides HUD both the authority to expend the collections that
are made and deposited into the fund pursuant to the National Manufactured Housing
Construction and Safety Standards Act of 1974, and also the authority to collect and expend an
additional fee that may be charged for the dispute resolution and instal ation programs. (Al of
those fees are to be deposited into the fund, are available for the same purposes as the rest of the
collections in the fund, and are subject to the same overal cap on expenditures.)
The collections that are authorized in appropriations acts each fiscal year as part of the Substance
Abuse and Mental Health Services Administration (SAMHSA) Health Surveil ance and Program
Support account at HHS operate on a similar principle to the HUD manufactured housing dispute
resolution and instal ation fees.97 This SAMHSA appropriations account general y funds many of
the behavioral health data systems, national surveys, and surveil ance activities that support work
undertaken by agency grantees, the field, and the public. (These activities are funded with an
appropriation from the GF.) SAMHSA also is asked to undertake additional data runs or analyses
of data collected in SAMHSA’s usual surveil ance activities, or to ship large orders of
publications. To enable SAMHSA to engage in this additional work, the annual appropriations
language for the Health Surveil ance and Program Support account authorizes the agency to both
collect and expend fees from entities that make these requests:
Provided further, that, in addition, fees may be collected for the costs of publications, data,
data tabulations, and data analysis completed under title V of the PHS Act and provided to
a public or private entity upon request, which shall be credited to this appropriation and
shall remain available until expended for such purposes. [P.L. 116-94, Division A, Title II]
When the authority to make a dedicated collection is provided in an appropriations act, it is
temporary in nature and only lasts for the duration of the act (one fiscal year), unless otherwise
specified.98 Consequently, the authority to collect must be included in the relevant appropriations
act each fiscal year in order for it to continue to be in effect.
Mixed Sources
Like the Health Surveil ance and Program Support account discussed above, some programs or
purposes are funded by both the GF and dedicated collections. In many cases, the rationale for a
mixed funding source is that the program undertakes two broad types of activities—those that are
“general government” in nature, and also those that involve services or benefits that are more
business-like in nature (and for which recipients may choose to opt in). In other cases, a program
that serves a specific population might be structured so that collections cover only a portion of the
costs, with the remainder of the costs effectively being subsidized by the GF. Such mixed funding
sources may be used for either mandatory or discretionary spending, as il ustrated below.

97 For further information, see CRS Report R46426, Substance Abuse and Mental Health Services Administration
(SAMHSA): Overview of the Agency and Major Program s
.
98 GAO Red Book, p. 2-59.
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Mandatory Spending
An example of mandatory spending that is funded by both the GF and dedicated collections99 is
the Medicare federal insurance program administered by the Centers for Medicare & Medicaid
Services within HHS, which pays for covered health care services of qualified beneficiaries.100
The sources of the collections that fund each portion of Medicare, the purposes of the col ections,
and the extent to which they are supplemented by transfers from the GF differ for each part of the
program as il ustrated by the following summaries of Parts A and B.101
Medicare Part A provides insurance for hospital services, skil ed nursing facility services, some
home health visits, and hospice services. This insurance is primarily funded through dedicated
collections (payroll taxes) that are credited to the Hospital Insurance (HI) trust fund. General y,
individuals are entitled to Part A benefits if they or their spouse paid Medicare payroll taxes for at
least 40 quarters, are at least 65 years old or under 65 with a permanent disability, and are a
citizen or permanent resident of the United States. Additional dedicated collections that are
deposited in the HI trust fund are the premiums paid by voluntary enrollees who are not entitled
to premium-free Part A coverage, and a portion of federal income taxes that individuals pay on
their Social Security benefits.102 The collections for Part A are intended to be the sole funding
source of the program. In the event that the amount of HI trust fund income (payroll taxes and
other income) is insufficient to make the benefit payments required by law,103 legislative action
would be required to change the amount or source of the collections so that full benefits could
continue to be paid.
Medicare Part B is an optional part of the program that provides insurance for a broad range of
medical services and supplies, including physician services, laboratory services, durable medical
equipment, and outpatient hospital services. The funding source for Part B is a combination of
collections (premiums paid by individuals who elect to enroll in Part B) and the GF, both of
which are deposited in the Supplementary Medical Insurance (SMI) trust fund. Unlike Part A,
dedicated collections are not intended to be the sole source of funding for Part B, and the funding
is structured so that the SMI wil have sufficient budgetary resources for the benefit formula
indefinitely. This is because the law requires the HHS Secretary to set premiums at a rate that
covers 25% of the estimated cost of the program each year, with the appropriation from the GF
automatical y covering the remaining cost. While legislative action to make changes to Part B
could occur for a variety of policy or budgetary reasons, the need to address a funding shortfal to
cover program benefits general y would not be one of them.
For Part A and Part B, both the authority to collect and the authority to expend are provided on a
permanent basis.104 However, the differing structure of the funding sources is such that while one
could operate indefinitely as it is constituted in current law (Part B), the other might require
future legislative action if its funding source becomes insufficient (Part A).105

99 Medicare revenues are collected by the T reasury and credited to the relevant trust fund.
100 For general information about Medicare, see CRS Report R40425, Medicare Primer.
101 For additional information about Medicare financing, see CRS Report R43122, Medicare Financial Status: In Brief.
102 Interest on securities held by the HI trust fund are also credited to the fund.
103 T he health care provider reimbursement methodologies, which determine the payments th at must be made from the
HI trust fund, are specified in law.
104 T he authority for the collections and expenditures from the HI trust fund is in 42 U.S.C. §1395i. T he requirement for
the collections and expenditures from the SMI trust fund is in 42 U.S.C. §1395t. (T he authority for the HHS Secretary
to establish the level of the Part B premiums each fiscal year is in 42 U.S.C. §1395r.)
105 For a discussion of projections of both the HI and SMI trust funds’ financial status, see CRS Report R43122,
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Discretionary Spending
The discretionary spending for the Food and Drug Administration (FDA) review of human drugs,
human medical devices, and veterinary drugs is also an example of activities with a funding
source that is a mixture of dedicated collections and the GF.106 Prior to the 1990s, the process of
reviewing these drugs and devices was funded entirely through discretionary appropriations from
the GF. Starting in 1992, however, the funding source for these activities was gradual y
transitioned to a mixed approach through a series of authorization laws that were enacted between
1992 and 2012.
The first of these FDA activities to be funded by both dedicated collections and the GF was the
review of human drug applications for prescription drugs. In the late 1980s, the median time for
FDA to approve a new drug application was 29 months—an amount of time that industry,
consumer groups, and the FDA agreed was unacceptably long. Patient advocates argued that a
drug in review—and therefore not available for sale—could be the difference between life and
death. Manufacturers argued that prolonged review times affected their ability to recoup the costs
of research and development. On the other hand, the FDA argued that it had insufficient
appropriations to hire additional scientists to review new and backlogged drug applications.
Negotiations between interested parties led to the enactment of the Prescription Drug User Fee
Act (PDUFA, P.L. 102-571) in 1992, which gave the FDA an additional funding source of
dedicated collections (user fees paid by the pharmaceutical industry) that could be used to support
“the process for the review of human drug applications.”107
The PDUFA user fees are structured to supplement discretionary appropriations from the GF. This
is ensured because the FDA is authorized to collect the fees only if the GF appropriations for the
activities involved in the review of human drug applications (and for FDA activities overal )
remain at a level at least equal (adjusted for inflation) to the pre-PDUFA budget for those
activities. In addition, the FDA is required to negotiate with industry to establish certain
performance goals, which set target completion times for various review processes. Final y, while
the PDUFA sets up the legal framework that governs the FDA user fees, the necessary authority
for the FDA to actual y collect and expend them is provided each year through appropriations
acts.108
The authority for user fees in the PDUFA is provided five years at a time. Each five-year
authorization sets a total amount of fee revenue for the first year and provides a formula for
annual adjustments based on inflation and workload changes. As a consequence, the PDUFA
funding mechanism has two elements that encourage regular legislative review —the five-year
reauthorization cycle, and the annual appropriations process.109

Medicare Financial Status: In Brief.
106 In addition to the fees for the review of medical products, FDA collects indefinite fees for mammography facility
inspection, and color and export certifications, as well as to support several food-related activities. T he agency’s
T obacco Program, first authorized in 2009, is funded entirely by user fees. For a list of FDA user fees, see HHS, Fiscal
Year 2021 Food and Drug Administration: Justification of Estimates for Appropriations Committees, “ All Purpose
T able,” pp. 19-21, https://www.fda.gov/media/135078/download.
107 T his summary of the history of PDUFA user fees is largely drawn from CRS Report R44864, Prescription Drug
User Fee Act (PDUFA): 2017 Reauthorization as PDUFA VI
. Please see this report for further information.
108 Ibid.
109 Ibid. T he most recent reauthorization, PDUFA VI, is T itle I of the FDA Reauthorization Act (FDARA) (P.L. 115-
52).
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Since the enactment of PDUFA in 1992, the FDA has been authorized to collect fees for
additional activities related to the review of brand and generic human drugs, biologics, and
medical devices, as wel as brand and generic animal drugs:
 In 2002, the Medical Device User Fee and Modernization Act (P.L. 107-250;
MDUFMA) was enacted to provide the FDA the authority to collect user fees to
support the review of human medical devices, which are a wide range of products
that are used to diagnose, treat, monitor, or prevent a disease or condition in a
patient.
 In 2003, the Animal Drug User Fee Act (ADUFA I; P.L. 108-130) gave the FDA
the initial authority to collect user fees from sponsors for the review of animal
drug applications. That authority was expanded to include animal generic drugs
in the subsequent ADUFA reauthorization (P.L. 110-316, Title II: Animal Generic
Drug User Fee Act) in 2008.110
 In 2010, the Biologics Price Competition and Innovation Act of 2009 (BPCIA;
Title VII of P.L. 111-148) established a new regulatory authority within the FDA
by creating a licensure pathway for biosimilar drugs.111 The associated FDA user
fee program was fully implemented in the Biosimilar User Fee Act of 2012
(BsUFA; Title IV of P.L. 112-144).112
 In 2012, the Generic Drug User Fee Amendments (GDUFA; Title III of P.L. 112-
144) gave the FDA the authority to collect user fees for the review of generic
prescription drugs for humans.113
Al of these dedicated collections are currently structured similarly to the PDUFA, in that they
require a minimum level of GF appropriations as a trigger for the user fee authority, the user fees
are general y authorized for a specific amount over a five-year period,114 and the authority to
expend the user fees is provided in annual appropriations acts. This user fee structure effectively
acts as a sunset on the authority to carry out funded activities because of FDA’s reliance on those
fees to carry out those activities.115
General Implications
The choice of whether to use the GF as the funding source for a program or set up a dedicated
collection often is made based on a number of general considerations related to the nature or
purpose of the program. The GF is usual y the source for mandatory and discretionary spending
that funds general government purposes. In contrast, a dedicated collection may be used to fund
government activities that are more business-like in nature, or to enable a particular population to

110 For further information, see CRS Report R45077, Animal Drug User Fee Programs; https://www.fda.gov/industry/
fda-user-fee-programs/animal-drug-user-fee-act-adufa.
111 A biosimilar is a biological product that is highly similar to a brand-name (innovator) biological product made by a
pharmaceutical or biotechnology company . For further information, see CRS Report R44620, Biologics and
Biosim ilars: Background and Key Issues
.
112 For further information, see ibid.; and CRS Report R42680, The Food and Drug Administration Safety and
Innovation Act (FDASIA, P.L. 112-144)
.
113 See CRS Report R44703, Generic Drugs and GDUFA Reauthorization: In Brief.
114 In some cases, an amount of collections is specified for the first fiscal year and then adjusted for inflation for the
four subsequent fiscal years. For further information, see ibid.
115 For a list of FDA user fees, see HHS, Fiscal Year 2021 Food and Drug Administration: Justification of Estimates for
Appropriations Committees, All Purpose T able, pp. 19-21, at https://www.fda.gov/media/135078/download.
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receive additional government services in exchange for paying a user fee.116 Alternatively, such a
dedicated collection might be set up to enable the government to pursue activities that it
otherwise would have lacked the budgetary resources to engage in if relying solely on the GF.
And in some instances, when multiple such considerations are at work, a mixed approach might
be chosen.
The way that a dedicated collection is structured has implications with regard to the process that
controls the funding source and the timing of budgetary decisionmaking. In particular, these
implications include whether the authority to collect and expend is provided through one process
or different processes, and whether the congressional decisionmaking for those authorities occurs
on the same schedule or different schedules. In the case of mandatory collections, one or both of
the authorities can be permanent or temporary. For instance, it is possible for the authority to
collect to be permanent, but the authority to expend to be provided for a set number of fiscal
years and subject to periodic renewal. In addition, the formula or specific amount for the
collection might need to be adjusted on occasion if it does not provide a sufficient level of
budgetary resources for the purpose that it funds. For example, in 2015 it was estimated that the
formula for the SSDI collections would stop generating enough budgetary resources to fully fund
the program by the end of 2016.117 This was due to a number of causes, including the aging of the
baby-boomer generation and changes in opportunities for work and compensation, which
contributed to a rise in the number of SSDI beneficiaries. The Bipartisan Budget Act of 2015
(P.L. 114-74) authorized a real ocation of the Social Security payroll tax to increase the SSDI’s
share of the collections temporarily to address the program’s funding issues. This change
improved the financial condition of SSDI, al owing the program to continue making benefit
payments in full and on time. However, with the recent recession, CBO projects that SSDI’s
budgetary resources wil be insufficient to fully fund the program by FY2026, at which time the
formula for the collections (or the level of benefits funded by those collections) might need to be
revisited.118
In the case of discretionary collections, while the timing of budgetary decisions with regard to the
authority to collect and expend also can occur at the same time or different times, one or both of
those authorities always involves the annual appropriations process. The authority to make
collections that fund discretionary spending could be provided on a multiyear or permanent basis
through authorization acts or each year through appropriations acts. Regardless, because the
annual appropriations process provides the authority to expend the funding, this may also create
an opportunity for Congress to simultaneously specify or restructure aspects of the funding
source. For example, the appropriation of the dedicated collections for the Manufactured Housing
Standards Program also contains provisions related to modifying the amount of the collections so
that they wil be sufficient to fund the amount that is appropriated each fiscal year.119
The structure of a funding source adds another layer of complexity to the inherent tradeoff within
a funding mechanism between the frequency of congressional decisionmaking and the stability of

116 Alan Schick, The Federal Budget: Politics, Process, and Policy, 3rd Ed. (Washington, DC: Brookings Institution
Press, 2007), pp. 188-190.
117 For further information on the funding source for the SSDI before and after the Bipartisan Budget Act of 2015, see
CRS Report R43318, The Social Security Disability Insurance (DI) Trust Fund: Background an d Current Status.
118 CBO, The 2020 Long-Term Budget Outlook, September 21, 2020, p. 68, https://www.cbo.gov/publication/56516.
Since 2016, the projected depletion date of the DI trust fund has fluctuated. See “ Appendix. Projected T rust Fund
Dates, 1983-2020” in CRS Report RL33028, Social Security: The Trust Funds. .
119 For example, the FY2020 appropriation of $13 million in those collections also specified that “fees ... shall be
modified as necessary to ensure such a final fiscal year 2020 appropriation” (“payment to manufactured housing fees
trust fund” account in P.L. 116-94, Division H, T itle II). Amounts collected in excess of $13 million would not be
available to the agency until subsequently appropriated.
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the funding for the program. Because a mandatory funding source general y al ows the spending
of collections to occur automatical y, this approach lends itself toward comparatively greater
funding stability than discretionary spending collections. However, such mandatory funding
sources can be structured so as to provide the opportunity for a greater degree of congressional
control if the authorization law specifies or caps the amount of the collections or limits the
authority to collect to a set time period. As for discretionary collections that are established
through an authorization, the authority to collect also can be provided for a set number of fiscal
years or for a set dollar amount. In addition, because the expenditure of al discretionary
collections general y is controlled through the appropriations process, there is an annual
opportunity to specify the amount that may be expended and place conditions on that spending.
Summary of General Implications of Funding
Mechanisms
As discussed and il ustrated throughout this report, how Congress chooses to structure a funding
mechanism in a particular context may be based on a number of budget process and
programmatic considerations.
The congressional budget process considerations for funding mechanisms are general y related to
the relative roles that authorizations and appropriations may assume in spending decisionmaking.
Whether Congress prefers that control over spending be vested in one, the other, or both
processes depends on a number of factors. For instance, what Congress views to be the optimal
time interval for budgetary decisions—annual, multiyear, or as needed—may influence whether
discretionary or mandatory funding is provided. Another issue is the budget process context in
which spending should be decided—whether it should be in competition with other programs that
are funded through the appropriations process, or whether it should be funded through a
mandatory funding mechanism that is evaluated separately as part of the authorization process.120
Congress also may assess the potential funding sources for a program in light of budget process
considerations. The use of the GF as a funding source indirectly associates that funding
mechanism with broader budgetary decisions about the amount of general revenue that the
government collects. In contrast, the decision to establish a dedicated funding source might have
the effect of narrowing the context for budgetary decisionmaking so that it focuses more
specifical y on that program. In such instances, Congress must decide whether the authorization
process or the appropriations process is better suited to control the dedicated funding source, and
whether the timing of decisionmaking should match that of the spending with which it is
associated.
When selecting a funding mechanism, Congress also may take into account programmatic
considerations, particularly the level of stability or predictability in funding that best supports
how a program is intended to function. To some extent, this may depend on the purpose of the
program, such as whether it directly or indirectly provides benefits to individuals, provides
services to a specific population, or supports general government activities. Other considerations
may include the extent to which program needs from year to year are expected to vary or be
difficult to predict. Ultimately, Congress has a range of options, from structuring the funding
mechanism so that it guarantees funding to meet whatever program needs arise to providing

120 T he creation of new mandatory spending also may require offsets under both statutory and procedural budget
enforcement rules. For further information, see, for example, CRS Report RL31943, Budget Enforcem ent Procedures:
The Senate Pay-As-You-Go (PAYGO) Rule
; and CRS Report R41157, The Statutory Pay-As-You-Go Act of 2010:
Sum m ary and Legislative History
.
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funding in such a way that the program is required to adapt to set funding levels that vary from
year to year.
Program needs also might be a factor in determining the most appropriate funding source for a
program. In some cases, user fees or other dedicated collections to support a program might be an
option. In others, Congress might seek to set up a special tax or revenue stream to provide a stable
source of budgetary resources for the future. Or, Congress might prefer that the program be
funded through the GF. For al of these options, the time interval for which the funding source is
established also affects the extent to which the funding mechanism for a program promotes either
funding predictability for the program that it funds, or regular congressional review.
In summary, some of the many factors that Congress may take into consideration when it is
assessing potential funding mechanisms for a new or existing program include
 the nature of the government program or service to be provided;
 whether funding stability or a guarantee of budgetary resources to meet whatever
needs arise is important for the purposes or operation of the program;
 whether the program could adapt and stil fulfil its mission if year-to-year
funding levels are variable;
 how accurately the future funding needs of the program can be forecast;
 how often, and by what types of legislative vehicles, the parameters of the
program (including its funding) should be reevaluated by Congress;
 what funding sources besides the GF could be used for the program;
 whether a program’s dedicated funding source and spending from that source
should be evaluated on the same or different schedules, and in the same or
different legislative vehicles; and
 whether congressional control over various aspects of the funding itself,
including the source of the funding, should be vested in one or more
authorization committees, vested in the appropriations committees, or split
between both types of committees.
This report has discussed some of the inherent tensions that exist between how frequently
Congress makes funding decisions for a program and how stable that funding is for the program.
However, policymakers may perceive these tensions differently and have differing perspectives as
to how they should be reconciled. The actual funding mechanism that is chosen in a particular
instance may be the result of a compromise between Congress and the President or within
Congress itself. As policymakers’ perceptions of these tensions evolve and change over the
course of a program’s existence, the funding mechanism also may be altered to better reflect the
needs of the program and the needs of Congress in budgetary decisionmaking.121


121 Irene S. Rubin, The Politics of Public Budgeting: Getting and Spending, Borrowing and Balancing, 7th Ed.
(T housand Oaks, CA: CQ Press, 2014), pp. 68-69.
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Appendix. Summary of Examples
Table A-1
and Table A-2 summarize the examples of various funding types and funding sources
that were discussed in this report. For further information about each of these examples, please
see the relevant portion of the report:
 Office of Apprenticeship, pp. 4-5, 20
 Child Care and Development Block Grant (CCDBG), pp. 5, 18
 Violence Against Women Family Research and Evaluation, p. 6
 State Children’s Health Insurance Program (CHIP), pp. 11-12
 Technical Assistance for Tribal Child Welfare Programs, p. 12
 Social Security Disability Insurance (SSDI), pp. 12-13, 23-24
 Social Services Block Grant (SSBG), pp. 13-14
 Supplemental Security Income (SSI), pp. 14-15
 Health Center Program, p. 18
 Child Care and Development Fund (CCDF), Child Care Entitlement to States, p.
18
 Maternal, Infant, and Early Childhood Home Visiting (MIECHV), p. 21
 Immigration Examinations Fee Account, pp. 22-23
 Manufactured Housing Standards Program, pp. 24-25
 Health Surveil ance and Program Support, extraordinary surveil ance activities,
pp. 25-26
 Medicare, pp. 26-27
 Prescription Drug User Fee Act (Food and Drug Administration), pp. 27-29

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Table A-1. Funding Type: Summary of Examples
Authorization of


Appropriation
Appropriations
Funding
Programa
Type
Location
Amountb
Duration
Form
Amount
Duration
Office of Apprenticeship (29 U.S.C. §50)
Discretionary
Appropriations Act
Definite
Annual
Implicit

Permanent
Child Care and Development Block Grant (42 U.S.C.
Discretionary
Appropriations Act
Definite
Annual
Explicit
Definite
Multiyear
§9858)
Violence Against Women Family Research and Evaluation
Discretionary
Appropriations Act
Definite
Annual
Explicit
Indefinite
Permanent
(P.L. 106-386, Division B, Title IV, §1404(b))
State Children’s Health Insurance Program (CHIP) (42
Mandatory
Authorization Act
Definite
Multiyear



U.S.C. §1397dd)
Technical Assistance for Tribal Child Welfare Programs (42 Mandatory
Authorization Act
Definite
Permanent —


U.S.C. §676)
Social Security Disability Insurance (SSDI) (42 U.S.C.
Mandatory
Authorization Act
Indefinite
Permanent —


§401(b))
Social Services Block Grant (SSBG) (42 U.S.C. §1397a)
Mandatory
Appropriations Act
Definite
Annual
Explicit
Definite
Permanent
Supplemental Security Income (SSI) (42 U.S.C. §§1381 and
Mandatory
Appropriations Act
Definite and
Annual
Explicit
Indefinite
Permanent
1381a)
Indefinite
Health Center Program (42 U.S.C. §201 et. seq. and 42
Mandatory
Authorization Act
Definite
Multiyear



U.S.C. §254b)
Discretionary
Appropriations Act
Definite
Annual
Explicit
Indefinite
Permanent
Child Care and Development Fund (CCDF) (42 U.S.C. §618 Mandatory
Authorization Act
Definite
Multiyearc



and 42 U.S.C. §9858)
Discretionary
Appropriations Act
Definite
Annual
Explicit
Definite
Multiyear
Source: CRS analysis.
a. For programs funded by discretionary funding, the statutory authority cited is the implicit or explicit authorization of appropriations. The statutory authority cited
for mandatory programs is the appropriation (or other funding-related instructions in the case of appropriated mandatory spending) in the authorization law.
b. Definite appropriations are specified in terms of a total dol ar amount. Indefinite appropriations are for “such sums as necessary”; in such instances, the actual
amount of spending that occurs may be based on an eligibility criteria and payment formula.
c. The initial appropriation was established for a five-year period, but in recent years this funding stream has been operating under a series of temporary extensions.
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Table A-2. Funding Source: Summary of Examples



Authority to Collect
Authority to Expend
Funding
Funding
Programa
Source
Type
Location
Amount
Duration
Location
Amountb
Duration
Office of Apprenticeship
General
Discretionary



Appropriations
Definite
Annual
Fund
Act
Maternal, Infant, and Early Childhood
General
Mandatory



Authorization
Definite
Multiyear
Home Visiting Program (MIECHV) (42
Fund
Act
§U.S.C. 711(j))
Immigration Examinations Fee Account
Dedicated
Mandatory
Authorization Act
Agency
Permanent
Authorization
Indefinite
Permanent
(42 U.S.C. §1356(m) and (n))
Col ections
Determines
Act
Social Security Disability Insurance (SSDI)
Dedicated
Mandatory
Authorization Act
Statutory
Permanent
Authorization
Indefinite
Permanent
(42 U.S.C. §401(b))
Col ections
Formula
Act
Manufactured Housing Standards Program,
Dedicated
Discretionary
Authorization Act
Agency
Permanent Appropriations
Definite
Annual
inspections (42 U.S.C. §5419(a) and (c))
Col ections
Determines
Act
Manufactured Housing Standard Program,
Dedicated
Discretionary
Appropriations
Agency
Annual
Appropriations
Definite
Annual
dispute resolution and instal ation
Col ections
Act
Determines
Act
Health Surveil ance and Program Support,
Dedicated
Discretionary
Appropriations
Agency
Annual
Appropriations
Definite
Annual
extraordinary surveil ance activities
Col ections
Act
Determines
Act
Medicare Part A (42 U.S.C. §1395i)
Dedicated
Mandatory
Authorization Act
Statutory
Permanent
Authorization
Indefinite
Permanent
Col ections
Formula
Act
Medicare Part B (42 U.S.C. §1395t)
Dedicated
Mandatory
Authorization Act
Statutory
Permanent
Authorization
Indefinite
Permanent
Col ections
Formula
Act
General
Mandatory



Authorization
Indefinite
Permanent
Fund
Act
Human Drugs Program (Food and Drug
Dedicated
Discretionary
Authorizationc
Statutory
Multiyearc
Appropriations
Definite
Annual
Administration) (P.L. 112-144)
Col ections
Formulac
Act
General
Discretionary



Appropriations
Definite
Annual
Fund
Act
Source: CRS analysis.
CRS-34


a. For programs funded by the general fund, any statutory authorities to expend that are provided by an authorization law are listed. For programs funded by
dedicated col ections, the statutory authority cited is the authority to col ect. In such instances, any statutory authorities to expend that are provided by an
authorization law are also listed. (No citation is listed when the authority to col ect is provided through annual appropriations acts.)
b. Authority to expend that is definite is specified in terms of a total dol ar amount; when the authority to expend is indefinite, there is no explicit dol ar limit on the
amount that may be expended except the total amount of col ections available.
c. While an authorization act establishes the legal framework for the col ection of the fees associated with the Human Drugs Program, that same act also provides that
the col ection and availability of those fees for obligation may only occur to the extent and in the amount provided in advance in appropriations acts. (Federal Food,
Drug, and Cosmetic Act, §736(a)(2)(A))
CRS-35

Overview of Funding Mechanisms in the Federal Budget Process, and Selected Examples



Author Information

Jessica Tollestrup

Specialist in Social Policy


Acknowledgments
For the most recent update, the author is grateful for assistance provided by the following CRS analysts:
Shayerah Ilias Akhtar, David H. Bradley, Agata Brodie, Benjamin Collins, Patricia A. Davis, Johnathan
Duff, Adrienne L. Fernandes-Alcantara, Alexandra Hegji, Elayne J. Heisler, Katie Jones, William A.
Kandel, Sarah A. Lister, Karen E. Lynch, Maggie McCarty, Alison Mitchell, William R. Morton, Lisa N.
Sacco, James V. Saturno, Rebecca R. Skinner, Emilie Stoltzfus, and Baird Webel.


Disclaimer
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under the direction of Congress. Information in a CRS Report should n ot be relied upon for purposes other
than public understanding of information that has been provided by CRS to Members of Congress in
connection with CRS’s institutional role. CRS Reports, as a work of the United States Government, are not
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Congressional Research Service
R44582 · VERSION 8 · UPDATED
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