Order Code RL32947
CRS Report for Congress
Received through the CRS Web
Air Quality Issues and Animal Agriculture:
EPA’s Air Compliance Agreement
Updated February 2, 2006
Claudia Copeland
Specialist in Resources and Environmental Policy
Resources, Science, and Industry Division
Congressional Research Service ˜ The Library of Congress

Air Quality Issues and Animal Agriculture:
EPA’s Air Compliance Agreement
Summary
From an environmental quality standpoint, much of the interest in animal
agriculture has focused on impacts on water resources, because animal waste, if not
properly managed, can harm water quality through surface runoff, direct discharges,
spills, and leaching into soil and groundwater. A more recent issue is the
contribution of emissions from animal feeding operations (AFO), enterprises where
animals are raised in confinement, to air pollution. AFOs can affect air quality
through emissions of gases such as ammonia and hydrogen sulfide, particulate
matter, volatile organic compounds, hazardous air pollutants, and odor. These
pollutants and compounds have a number of environmental and human health effects.
Agricultural operations that emit large quantities of air pollutants may be subject
to Clean Air Act regulation. Further, some livestock operations also may be regulated
under the release reporting requirements of the Comprehensive Environmental
Response, Compensation, and Liability Act and the Emergency Planning and
Community Right-to-Know Act. Questions about the applicability of these laws to
livestock and poultry operations have been controversial and have drawn
congressional attention.
Enforcement of these federal environmental laws requires accurate measurement
of emissions to determine whether regulated pollutants are emitted in quantities that
exceed specified thresholds. Yet experts believe that existing data provide a poor
basis for regulating and managing air emissions from AFOs. In an effort to collect
scientifically credible data, in January 2005 the Environmental Protection Agency
(EPA) announced a plan that had been negotiated with segments of the animal
agriculture industry. Called the Air Compliance Agreement, it is intended to produce
air quality monitoring data on AFO emissions during a two-year study, while at the
same time protecting participants through a “safe harbor” from liability under certain
provisions of federal environmental laws. Participants will pay a civil penalty of
about $500 per farm and will contribute $2,500 per farm for the monitoring program,
which is expected to begin later in 2006. Many producer groups support the
agreement as essential to gathering valid data that are needed for decisionmaking.
However, critics, including environmentalists and state and local air quality officials,
say that the Air Compliance Agreement will grant all participating animal producers
a sweeping retrospective and prospective liability shield for violations of
environmental laws, yet because fewer than three dozen farms will be monitored, it
is too limited in scope to yield scientifically credible estimates of AFO emissions.
Some industry groups have their own questions and reservations. Nearly 2,700
producers signed up to participate in the agreement. EPA is in the process of
evaluating the responses; the first 20 agreements were approved on January 31, 2006.
This report reviews key issues associated with the Air Compliance Agreement.
It will be updated as warranted by events. Background information on air emissions
from poultry and livestock operations, relevant federal environmental laws and
regulations, congressional interest, state activities, and research needs are discussed
in CRS Report RL32948, Air Quality Issues and Animal Agriculture: A Primer.

Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
EPA’s Air Compliance Agreement with Industry . . . . . . . . . . . . . . . . . . . . . . . . . 3
Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Critiques of the Safe Harbor Agreement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Environmental Advocates and Air Program Administrators . . . . . . . . . 7
Other Animal Producers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Air Quality Issues and Animal Agriculture:
EPA’s Air Compliance Agreement
Introduction
From an environmental quality standpoint, much of the public and policy
interest in animal agriculture has focused on impacts on water resources, because
animal waste, if not properly managed, can adversely impact water quality through
surface runoff and erosion, direct discharges to surface waters, spills and other dry-
weather discharges, and leaching into soil and groundwater. However, animal feeding
operations (AFO), enterprises where animals are kept and raised in confinement, can
also result in emissions to the air of particles and gases such as ammonia, hydrogen
sulfide, and volatile organic chemicals. At issue today are questions about the
contribution of AFOs to total air pollution and corresponding ecological and possible
public health effects.
The Environmental Protection Agency (EPA) has authority to address AFO air
emissions under several laws — the Clean Air Act, Comprehensive Environmental
Response, Compensation, and Liability Act, and the Emergency Planning and
Community Right-to-Know Act. Implementation and enforcement of these laws
requires scientifically credible data on air emissions and accurate measurement of
emissions to determine whether regulated pollutants are emitted in quantities that
exceed specified thresholds.
This report discusses a plan announced by EPA in January 2005, called the Air
Compliance Agreement, that would produce air quality monitoring data on animal
agriculture emissions from a small number of farms, while at the same time
protecting all participants (including farms where no monitoring takes place) through
a “safe harbor” from liability under certain provisions of federal environmental laws.
Some industry sectors involved in negotiating the agreement, notably pork and egg
producers, strongly support it, but other industry groups that were not involved in the
discussions have concerns and reservations. State and local air quality officials and
environmental groups oppose the agreement, as discussed below.
A separate report, CRS Report RL32948, Air Quality Issues and Animal
Agriculture: A Primer, provides general background information on air emissions
from poultry and livestock operations, their sources and health and environmental
effects, relevant federal environmental statutes and regulations, congressional interest
in these issues, state activities, and research needs.

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Background1
AFOs can affect air quality through emissions of gases (ammonia and hydrogen
sulfide), particulate matter, volatile organic compounds, hazardous air pollutants,
microorganisms, and odor. AFOs also produce gases (carbon dioxide and methane)
that are associated with climate change. The generation rates of odor, manure, gases,
particulates and other constituents vary with weather, time, animal species, type of
housing, manure handling system, feed type, and management system (storage,
handling, and stabilization).
Emission sources include barns, feedlot surfaces, manure storage and treatment
units, silage piles, animal composting structures, and other smaller sources, but air
emissions come mostly from the microbial breakdown of manure stored in pits or
lagoons and spread on fields. Pollutants associated with AFOs have a number of
environmental and human health impacts. Most of the concern with possible health
effects focuses on ammonia, hydrogen sulfide, and particulate matter, while major
ecological effects are associated with ammonia, particulates, methane, and oxides of
nitrogen.
The animal sector of agriculture has undergone major changes in the last several
decades, a fact that has drawn the attention of policymakers and the public. In the
United States there are an estimated 238,000 animal feeding operations where
livestock and poultry are confined, reared, and fed, according to the U.S. Department
of Agriculture’s 1997 Census of Agriculture.
Organizational changes within the industry to enhance economic efficiency have
resulted in larger confined production facilities that often are geographically
concentrated. The driving forces behind structural change in livestock and poultry
production are no different than those that affect many other industries: technological
innovation and economies of scale.2 From 1982 to 1997, the total number of U.S.
operations with confined livestock fell by 27%. At the same time, the number of
animals raised at large feedlots (generally confining 300 animals or more) increased
by 88%, and the number of large feedlots increased by more than 50%.3 The
traditional image of small farms, located in isolated, rural locales, has given way to
very large farming operations, some on the scale of industrial activities. Increased
facility size and regional concentration of livestock and poultry operations have, in
turn, given rise to concerns over the management of animal wastes from these
facilities and potential impacts on environmental quality.
1 For more extensive discussion, see CRS Report RL32948, Air Quality Issues and Animal
Agriculture: A Primer
, by Claudia Copeland.
2 Marc Ribaudo et al., U.S. Department of Agriculture, Economic Research Service, Manure
Management for Water Quality: Costs to Animal Feeding Operations of Applying Manure
Nutrients to Land
, June 2003, Agricultural Economic Report 824, 87 pp.
3 U.S. Department of Agriculture, Natural Resources Conservation Service, Manure
Nutrients Relative to the Capacity of Cropland and Pastureland to Assimilate Nutrients:
Spatial and Temporal Trends for the United States
, Publication no. nps00-0579, Dec. 2000,
p. 18.

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Agricultural operations often have been treated differently than other types of
businesses under numerous federal and state laws. Some laws specifically exempt
agriculture from regulatory provisions, and some are structured in such a way that
farms escape most, if not all, of the regulatory impact. Moreover, in implementing
environmental laws, federal and state regulators have traditionally focused most
effort on controlling the largest and most visible sources of pollution to the water, air,
and land — factories, waste treatment plants, motor vehicles — rather than smaller
and more dispersed sources such as farms.
Nevertheless, certain large animal feeding operations are subject to
environmental regulation. The primary regulatory focus has been on protecting water
resources and has occurred under the Clean Water Act. While air emissions from
farms typically do not exceed thresholds specified in the Clean Air Act (CAA) and
thus generally escape most CAA regulatory programs, facilities that emit large
quantities of air pollutants may be regulated under the act and state programs which
implement the CAA. A number of state air quality programs supplement federal
CAA requirements with facility construction and operation permits, air quality
standards for odor and certain AFO pollutants, monitoring, inspection, and testing.
Some observers believe that increased federal and state attention to air emissions
from AFOs, precipitated in part by structural changes in animal production and
public concern, will likely lead to stricter federal regulation.4
Some livestock operations may also be subject to the release reporting
requirements of the Comprehensive Environmental Response, Compensation, and
Liability Act (CERCLA, the Superfund law) and the Emergency Planning and
Community Right-to-Know Act (EPCRA). The reporting requirements of these laws
are triggered when large quantities of certain substances are released to the
environment, including ambient air. Livestock facilities emit hydrogen sulfide and
ammonia, which are reportable substances under these laws. There has been little
enforcement of these provisions against livestock operations, but in lawsuits brought
by citizen groups, federal courts in two circuits have found AFOs in violation of the
reporting requirement provisions of the laws. The net result is growing concern by
the agriculture community that other legal actions will be brought, thus potentially
exposing more of these operations to enforcement under federal law.
EPA’s Air Compliance Agreement with Industry
Enforcement of applicable provisions of federal environmental laws such as the
Clean Air Act requires accurate measurement of emissions to determine whether
facilities and operations emit regulated pollutants in quantities that exceed specified
thresholds. Monitoring air emissions from feedlots, waste lagoons, animal
confinement buildings and other components of livestock facilities is complex and
has been controversial. Resolving questions about AFOs’ contribution to total air
pollution and corresponding ecological and possible public health effects is hindered
4 Jody M. Endres and Margaret Rosso Grossman, “Air Emissions from Animal Feeding
Operations: Can State Rules Help?” Pennsylvania State Environmental Law Review, vol.
13, fall 2004, p. 5.

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by a lack of adequate, accurate, scientifically credible data on air emissions. At the
same time, increasing public concern about AFO emissions and a growing number
of enforcement actions brought against large AFOs seeking compliance with
environmental laws, have led to efforts to gather more and better data.
Early in 2002, representatives of some agriculture industry groups — especially
pork and egg producers — approached EPA officials with a proposal to negotiate a
voluntary agreement that would produce air quality monitoring data on emissions
from animal feedlot operations. Discussions between EPA and the industry groups
continued for more than two years and eventually led to a plan, called the Air
Compliance Agreement, that EPA announced in January 2005. It was published in
the Federal Register on January 31, 2005, thus triggering a period during which
AFOs could sign up to participate in the agreement.5 Concurrently, EPA solicited
public comments, but comments were not expected to lead to changes to the
agreement. The signup period, originally set to last for 90 days, was subsequently
extended for an additional 60 days, until July 1, 2005, and the public comment period
(originally set to end on April 1) was extended until May 2, 2005.6 On June 23 and
again on August 3, EPA further extended the deadline for signup, first to July 12 and
then to August 12, 2005, in order to provide more time for AFO operators to make
decisions about participation. The public comment period was not extended.
The agreement is intended to enable scientists to collect and analyze emissions
data and create tools that AFOs could use to estimate their emissions, for purposes
of regulatory compliance, while at the same time protecting participating AFOs under
a “safe harbor” in which EPA covenants not to sue and releases participants from
EPA liability for failing to comply with certain provisions of the Clean Air Act,
CERCLA, and EPCRA. EPA retains the authority to respond to an imminent and
substantial endangerment to public health or the environment, and participants are
not protected against liability for criminal violations of environmental laws.
The agreement applies to AFOs in the egg, broiler chicken, turkey, dairy cattle,
and swine industries. (It does not address AFOs that only have open-air feedlots,
such as cattle feedlots.) Those that sign up to participate will pay a civil penalty
ranging from $200 to $1,000, depending on the number of animals at the AFO, and
will contribute $2,500 per farm to implement a nationwide air monitoring program
for AFOs. EPA estimated that as many as 4,000 AFOs might sign up to participate
in the agreement. Of those that sign agreements with EPA, a small number —
perhaps no more than three dozen representative farms nationwide — will be selected
to participate in on-farm monitoring, but all who sign up will be protected by EPA’s
covenant not to sue. EPA reserved the right to decide not to go forward with the
agreement and monitoring study if, for example, an insufficient number of AFOs
signs up to generate the $10 to $12 million needed for the study, or if some
individual animal groups were under-represented. EPA also could decline to enter
into agreement with an individual AFO if, for example, it is the subject of ongoing
federal, state or local environmental enforcement.
5 U.S. Environmental Protection Agency, “Animal Feeding Operations Consent Agreement
and Final Order,” 70 Federal Register 4958, Jan. 31, 2005.
6 70 Federal Register 16266, Mar. 30, 2005.

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EPA expected that within 30 days after the end of the sign-up period, agency
officials would decide whether to proceed with all, part, or none of the monitoring
study and sign the Air Compliance Agreements submitted by industry participants.
(As described in the following section, this process took longer than was anticipated.)
Signed agreements would then be forwarded to the agency’s Environmental Appeals
Board (EAB) for final approval. Unlike civil enforcement actions that are resolved
by judicially approved consent decrees, the Air Compliance Agreements are
administrative agreements. Among other responsibilities, the EAB is the final EPA
decisionmaker on administrative appeals under all major environmental statutes that
the agency administers.
Monies collected from participants will go to a nonprofit organization (NPO)
set up by the AFOs, called the Agricultural Air Research Council.7 The NPO, in
turn, will subcontract with a science advisor and independent monitoring contractor
to run the monitoring study, including recommending facilities to be monitored.
EPA’s role will be to review and approve the contractor’s study plan and, later, to use
and analyze the data generated by the study. EPA also collaborated with industry and
other stakeholders to develop protocols for the study, which were published with the
January 2005 Notice of the agreement. Emissions at the facilities will be monitored
at both buildings and waste lagoons and will include ammonia, hydrogen sulfide,
particulate matter, carbon dioxide, and VOCs.
EPA expects that monitoring will begin in 2006 and will continue for two years.
EPA will use the data and other relevant, available data to develop methodologies for
estimating annual emissions. Within 18 months after the nationwide monitoring
study concludes (i.e., early 2008 or possibly some time in 2009), EPA expects to
publish emission-estimating methodologies for AFOs in the eligible animal groups.
Once the methodologies are published, an AFO will have 120 days to apply the
methodologies to its facilities, apply for all applicable air permits and comply with
permit conditions, and report any qualifying releases of ammonia and hydrogen
sulfide as required by CERCLA and EPCRA. The EPA covenant not to sue and
waiver from liability will cover an AFO’s liability for failing to comply with certain
provisions of CERCLA, EPCRA, and the CAA retroactively and from the start of the
agreement up to the time it reports releases and applies for and receives CAA permits
(i.e., 120 days after publication of estimating methodologies) or December 31, 2011,
whichever is earlier. This time period can be extended by mutual agreement of EPA
and participants, without limit to how long such an extension might last.8
Status. The signup period for participating in the agreement closed on August
12, and EPA then began compiling and evaluating responses. Ultimately, 2,681
AFOS, representing more than 6,700 farms in 42 states, signed up to participate.
EPA officials believe that a sufficient number of farms representing dairies, swine
farms, egg producers, and broiler operations have signed up to provide a
representative sample for the monitoring studies, but that it is unclear if a sufficient
number of farms representing turkey operations have signed up. In November, an
initial group of agreements was forwarded to the Agency’s Environmental Appeals
7 70 Federal Register 4970, Jan. 31, 2005.
8 70 Federal Register 4964, Jan. 31, 2005.

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Board for approval. The EAB approved the first 20 agreements on January 31, 2006,
consisting of 10 swine and 10 egg-laying operations in 11 states. According to EPA,
the EAB’s determination that the agreements are consistent with applicable statutes
and CAA regulations allows the monitoring study to officially begin developing
quality assurance and site-specific monitoring plans for those livestock sectors. The
Agency still anticipates that the two-year monitoring program will begin later in
2006.
Critiques of the Safe Harbor Agreement
In comments submitted to EPA, many livestock and poultry groups and
individual producers supported the Air Compliance Agreement — especially those
expected to participate in it. In their view, comprehensive, valid data are needed to
develop appropriate public policy regarding emissions from animal agriculture
operations. The air monitoring study linked to the agreement is an important effort
to establish the criteria that farmers and regulators need to correctly interpret
agricultural compliance requirements. Supporters believe that data from the study
will enable EPA to produce charts that livestock and poultry producers can use to
know whether their farms are subject to federal environmental laws.
Additionally, supporters say that producers need the protection provided by the
agreement in order to volunteer their farms for participation in the study. Without
this protection, there is no incentive for producers to participate in the research,
because the potential penalties for alleged past violations are so great. Many among
those who support the agreement believe that livestock operations should be entirely
exempt from CERCLA and EPCRA reporting requirements because, in their view,
Congress did not intend for these laws to apply to animal agriculture. Several
groups, including cattle feedlots (even though they are not included in the compliance
agreement) and chicken and turkey producers, have for some time requested that
EPA resolve the issue for producers through a finding or guidance to clarify that
animal agriculture facilities are not subject to CERCLA and EPCRA. They fear that,
barring statutory change or some clarification from EPA, the courts will continue to
rule that the laws do apply to animal agriculture. Thus, they view the monitoring
study, and the legal protection provided under it, as an incentive to participants that
will provide the data needed to determine on a national scale which farms are subject
to compliance with regulatory requirements.
State and local air quality officials and members of the environmental advocacy
community strongly object to the agreement, which some characterize as a grant of
“retrospective and prospective immunity from liability” for every AFO in the United
States, a sweeping liability shield to the entire industry.9 Environmental groups and
air program administrators were not included in EPA-industry negotiations on the
agreement, but several draft versions of the agreement document were publicly
circulated throughout the period of its development. Letters to EPA objecting to the
9 Brent Newell et al. (representatives of six environmental organizations), letter to Christine
Todd Whitman (EPA Administrator), May 5, 2003, pp. 4-5.

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proposal were sent by both,10 and environmental groups unsuccessfully attempted to
halt the plan with a September 2003 lawsuit alleging that EPA had violated the
Freedom of Information Act by failing to disclose documents about the proposed
agreement. Legal challenges to the Air Compliance Agreement are possible, such as
a citizen suit that might be brought against an individual participating farm, or an
administrative action challenging EPA’s overall action on the basis that the
agreement represents an illegal rulemaking. Under the Clean Air Act, the latter is
reviewable in the U.S. Court of Appeals for the District of Columbia.11
Not all industry groups are fully supportive of the agreement, for a number of
reasons. Some agriculture industry groups that did not participate in negotiating the
compliance agreement have a number of their own concerns. Issues presented in
critical comments submitted on the January 2005 publication of the agreement
address a number of points.12
Environmental Advocates and Air Program Administrators.
Environmental critics argue that the agreement unlawfully exempts AFOs from
requirements of the Clean Air Act, CERCLA, and EPCRA. They argue that EPA has
no authority to defer a major stationary source’s or a facility’s compliance with these
laws, through permit deferrals or requirements. These opponents argue that the broad
liability shield provided by the agreement is not justified by contending that there is
a lack of data. They point to research that has been conducted for quite some time
by academic and government researchers (including USDA) that has documented
emissions and adverse health and environmental effects from AFO emissions.
Further, they argue that EPA has authority under CAA Section 114 to require that
AFOs provide emission monitoring data, without the need to provide an industry-
wide exemption. In the view of environmentalists, the penalties required under the
agreement (averaging $500 per farm) are a “payment to pollute,” especially compared
with penalties available to EPA under those laws ($27,500 for each civil violation).
EPA’s position is that the agreement is the quickest and most effective way to
address the current uncertainties regarding air emissions and to bring the entire AFO
industry into compliance with the CAA, CERCLA, and EPCRA, in contrast to
lengthy litigation and case-by-case enforcement of the laws.13
10 See, for example, Lloyd L. Eagan (President of State and Territorial Air Pollution
Program Administrators) and Ellen Garvey (President of Association of Local Air Pollution
Control Officials), letter to Christine Todd Whitman (EPA Administrator), Apr. 7, 2003;
Shelley Kaderly, STAPPA Agriculture Committee Chair) and Doug Quetin (ALAPCO
Agriculture Committee Chair), letter to Robert Kaplan (EPA Office of Enforcement and
Compliance Assistance), Feb. 18, 2004; and Brent Newell et al. (representatives of six
environmental organizations), letter to Christine Todd Whitman, May 5, 2003.
11 A petition for review of the agreement was filed in May by four civic and advocacy
organizations and is still pending, as of January 2006 (Association of Irritated Residents, et.
al, v. U.S. Environmental Protection Agency
, D.C. Cir., No. 05-1177, filed May 26, 2005.)
12 Materials included in the EPA docket, No. OAR-2004-0237, can be found at
[http://docket.epa.gov/edkpub/do/EDKStaffCollectionDetailView?objectId=0b0007d480
3f4177].
13 70 Federal Register 4958, Jan. 31, 2005.

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Environmental critics also are concerned that the agreement does not require
AFOs to reduce pollution. EPA’s publication of emission-estimating methodologies
will trigger the obligation of participating AFOs to determine their emissions and to
comply with all applicable CAA requirements (including permits) and CERCLA and
EPCRA reporting requirements. Critics say, however, that it does not guarantee air
pollution controls at any AFO or even require participants to test technologies or
management practices to reduce their emissions, although all AFOs are eligible to
secure a lengthy, perhaps indefinite CAA amnesty. At the end of the study EPA
could make regulatory or policy decisions that would leave AFO emissions
unregulated, they say, even if monitoring indicates there are emissions in amounts
that would be of concern. In addition, they are critical of the open-ended timelines
in the agreement (especially the 18 months after monitoring when EPA expects to
publish emission-estimating methodologies): if EPA fails to issue the methodologies,
the waiver could last indefinitely, they say.
A number of commenters criticized the small number of sites that EPA expects
will be monitored — some EPA sources indicated that 28 total sites will be
monitored as a representative sample of animal housing structures and manure
storage and treatment units across the country. The agreement does not state the
precise number, and other analysts say the EPA documents suggest that only 16 or
17 nationwide sites will be monitored for all industry segments. Such a small
number, critics say, will be insufficient to develop emission-estimating
methodologies for all of the covered animal sectors and possible farm configurations
and geographic locations. In response, EPA has said that its technical experts believe
that the monitoring protocol will provide sufficient data to get a valid representative
sample. Moreover, significantly increasing the number of farms to be monitored
would be prohibitively expensive and would not add substantially to the value of the
data collected, according to EPA.14 Critics also say that the small sample size for
monitoring is inconsistent with recommendations made by the National Research
Council calling for a process-based rather than a model farm approach to estimate
emissions.15 EPA has said that developing a process-based model of emissions is
part of the agency’s long-term strategy but will take a period of years.
Other critics say that the monitoring protocol under the agreement lacks
adequate peer review and involvement of qualified, independent scientists who were
not involved in its formulation. To assure the scientific rigor of the monitoring
program, some commenters recommended an independent peer review process using
reviewers with no active ties to the livestock industry.
State and local air quality officials say that the agreement interferes with their
ability to attain air quality standards and enforce air pollution control laws. In their
view, several of the agreement’s provisions are unclear and could be interpreted to
14 70 Federal Register 4960, Jan. 31, 2005.
15 In 2001 EPA asked the National Research Council of the National Academy of Sciences
for a report evaluating the current scientific knowledge base and approaches for estimating
air emissions from AFOs. Two NRC reports prepared in response to this request are
discussed in CRS Report RL32948, Air Quality Issues and Animal Agriculture: A Primer,
by Claudia Copeland.

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limit the ability of states and localities to enforce air laws. These groups, along with
environmentalists, are greatly concerned that the broad waiver of liability will curtail
state or local and citizen enforcement, or, at the very least, create a very high hurdle
for enforcement. The agreement says that it is not intended to affect the ability of
states or citizens to enforce applicable state laws. However, these critics contend
that, by saying that the agreement resolves an AFO’s civil liability for certain
potential violations, it seriously raises the bar for state or citizen enforcement, since
a participating AFO might claim in an enforcement action that the agreement
provides immunity from state laws or local ordinances. EPA’s position is that the
agreement does not undermine state or local enforcement authorities and has no
impact on the most important state enforcement tools, including zoning
classification, state permits, nuisance actions, workplace regulations, and health and
safety laws. Further, the agreement does not affect the ability of regulators to bring
an action under emergency provisions of the Clean Air Act and other statutes in order
to prevent an imminent and substantial endangerment to public health, welfare, or the
environment.
EPA also was criticized for failing to resolve two important definitional issues.
In the Notice announcing the agreement, EPA said that after the monitoring study is
complete, it will issue guidance or a rule on whether to treat emissions from different
areas at AFOs as fugitive or nonfugitive emissions. Fugitive emissions are not
counted for purposes of determining whether under the Clean Air Act a source is
major or minor and, thus, subject to pollution controls. Critics say that EPA should
clarify this important issue quickly, should do so in consultation with states and
localities, and should take any action through a formal rulemaking, not a guidance
document.
Similarly, EPA said that at the end of the monitoring study, it will issue
guidance on the scope of the term “source” as it relates to animal agriculture and
farm activities.16 State and local air quality officials are concerned that, like the
fugitive emissions issue, EPA could define “source” in such a way that emissions
from AFOs do not rise to a threshold of regulatory concern. In their view, this would
be contrary to federal court rulings in cases concerning applicability of CERCLA and
EPCRA reporting requirements to AFOs. States and localities believe that the laws
should be interpreted liberally to accomplish goals of cleaning up and maintaining
clean air.
Other Animal Producers. Critical comments on the agreement also were
submitted by some industry groups that did not participate in negotiations with EPA
to develop the program, but might be expected to participate in the agreement. A
number of commenters from the dairy farming and broiler and turkey producer
industries noted confusion about many details of the agreement, especially for small
farmers, resulting in uncertainty about implications and costs to them of participating
in it (actual costs and transaction costs). Several asked EPA to review public
comments on the agreement, make suggested changes where appropriate, and allow
producers and processors additional time to sign up, once a final agreement has been
published. Extending the signup period would allow groups that are less familiar
16 70 Federal Register 4959, Jan. 31, 2005.

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with the agreement the time that they need to assess it, they say. As noted previously,
based partly on requests for additional time, EPA did extend the signup deadline until
August 12, but the agreement remains unchanged from what was published in
January 2005.
A number of industry commenters objected that the agreement requires an
admission of liability and that the term “civil penalty,” which participants must pay,
carries negative connotations that imply guilt. Some companies objected to having
to pay to resolve unproven violations. EPA responded that, by voluntarily signing
the agreement, farmers are not admitting any liability or any sort of wrongdoing.
Payment of a penalty is part of the process to obtain a release from liability for
possible violations, according to EPA, and is not intended to be used for any
purposes other than this agreement. In EPA’s view, signing the agreement is not an
admission that participating agricultural operations have been operated negligently
or improperly or in violation of any federal, state, or local law or rule.17
Some dairy farmers also raised concerns that the agreement could jeopardize
their role in farm programs, bank loans, and insurance policies. In response, the
Secretary of Agriculture told Members of Congress that the department had
concluded that “voluntary participation in the AQCA by a producer or processor will
not cause the producer or processor to be ineligible for USDA programs.”18
Both dairy and poultry producer groups (sometimes called the meat-bird sector,
in contrast to the egg-laying segment of poultry) said that they would prefer to work
with a nonprofit organization of their own choosing to manage their participation
(handling funding, monitoring facilities, presenting the data), rather than a single
organization selected to represent all of the industry. It has been widely reported that
industry groups who negotiated the agreement with EPA have selected researchers
from Purdue University to manage the study.19 The dairy industry would prefer to
work with its own Dairy Environmental Task Force, which already is addressing
dairy air quality issues, and poultry and egg producers would prefer to work with
researchers that they believe are more familiar with their operations, such as
scientists from the University of Georgia.
Producers in the poultry and dairy sectors also objected to the small number of
sites that EPA plans to monitor (for example, the protocol calls for monitoring only
four dairy farms and two broiler operations across the country), saying that the
proposed monitoring program is too limited and that the data will not accurately
reflect the variation or range of climatic, geographic, and operational factors that
influence emissions from facilities. Whereas the environmentalists’ concerns about
the small number of sites to be monitored is that the majority of producers will
benefit from the safe harbor without having to do anything, industry groups have
17 U.S. Environmental Protection Agency, “Response to Public Comments on the Animal
Feeding Operation Air Agreement,” June 23, 2005. Available at [http://www.epa.gov/
compliance/resources/agreements/caa/cafo-agr-response-com.html].
18 Mike Johanns, Secretary, USDA, Letter to the Honorable Robin Hayes, Aug. 11, 2005.
19 National Pork Producers Council, “EPA Air Emissions Consent Agreement Fact Sheet,”
undated, at [http://www.nppc.org/hot_topics/airemissionsbackgrounder.html].

CRS-11
different concerns. They fear that EPA will impose future requirements that will be
both costly and scientifically inappropriate, because the limited monitoring under the
protocol will not adequately reflect different types of operations within specific
sectors or for all segments of animal agriculture. One commenter noted as follows:
[A]n insufficient number of farms are included in the monitoring to allow for the
development of models to estimate emissions from individual AFOs.... It is
unclear how the very limited number of representative farms selected, and the
resulting emission estimating methodologies, will result in data capable of
accounting for the various differences in management styles, feed regimes, water
control and numerous other factors that can affect emissions.20
Comments from poultry and dairy groups raised other concerns, including
financial obstacles to participating in the agreement. Dairy farmers noted that while
some animal producers are able to use funds from national check-off programs to pay
for the study so that individual producers do not have to pay the costs out-of-pocket
(e.g., the National Pork Board has committed $6 million of check-off funds for pork
producers’ participation), the national dairy check-off program may not be used to
fund production-oriented research at the farm level.21 Thus, there is no central
mechanism to fund dairy farmers’ participation in the monitoring study.
However, a group of pork producers who operate small farms, called the
Campaign for Family Farms, and several individual hog farmers object to use of
mandatory pork check-off funds to support producers’ participation in the EPA Air
Compliance Agreement. On May 5 they petitioned the Secretary of Agriculture to
halt pork check-off commitments for expenses related to the agreement. In their
view, the EPA study is beyond the type of research and promotion that is permissible
under the Pork Promotion, Research, and Consumer Information Act, which
authorizes the check-off. According to the petitioners, the proposed use of pork
check-off funds is a means for large CAFOs to buy legal immunity from
environmental laws that will not benefit those producers who are too small to be
subject to the CAA, CERCLA, or EPCRA.22
Congressional attention to the issues discussed in this report has been limited,
with the result that developments are proceeding largely by administrative and some
judicial actions, not through legislative policymaking. As of January 2006, no
legislation regarding the Air Compliance Agreement had been introduced. Prior to
release of the agreement in January 2005, some individual Members wrote letters to
EPA objecting to the pending plan. More formal attention — for example, through
oversight hearings — has not occurred.
20 Comments of C. M.Williams, F. J. Humenik, directors of the Animal and Poultry Waste
Management Center and the National Center for Manure and Animal Waste Management,
on EPA Docket ID: OAR-2004-0237, March 2, 2005, p. 11.
21 For background information on national check-off programs for promotion and research
of crop and livestock commodities, see CRS Report 95-353, Federal Farm Promotion
(“Check-Off”) Programs
, by Geoffrey S. Becker.
22 Mark McDowell et al., and the Campaign for Family Farms, “Petition before the Secretary
of Agriculture,” AMA PPRCIA Docket No. 05-0001, May 5, 2005, p. 8.