 
 
 
 INSIGHTi 
 
FY2024 NDAA: Status of Legislative Activity 
Updated January 4, 2024 
By l
aw (31 U.S.C. §1105(a)), the President is to send the annual federal budget request to Congress by the 
first Monday in February. In practice, Presidents sometimes send it later. On March 9, 2023, President 
Joseph R. Biden submitted initial documentation supporting the
 FY2024 budget request, including 
proposed funding for the U.S. Department of Defense (DOD), nuclear weapons programs of the U.S. 
Department of Energy, and other national defense-related activities. The National Defense Authorization 
Act (NDAA) typically sets policy and authorizes appropriations for the vast majority of these activities. 
This product provides the status of congressional activity on the National Defense Authorization Act for 
Fiscal Year 2024 (FY2024 NDAA;
 H.R. 2670; S. 2226; P.L. 118-31), which became law on December 22, 
2023. 
In the House, on June 12, 2023, leaders of the seven subcommittees of the House Armed Services 
Committee (HASC) released
 draft legislative proposals (known as 
marks) for matters in the FY2024 
NDAA under their respective jurisdictions. On the same day, Representative Mike Rogers, Chair of 
HASC, released his
 draft legislative proposal (i.e., 
Chairman’s mark) for portions of the bill not in the 
subcommittee marks. On June 13-14, the HASC subcommittees considered and reported their
 marks to 
the full committee. On June 21, the HASC
 considered amendments to the subcommittee marks and 
Chairman’s mark before voti
ng 58-1 to order the legislation reported to the House with an amendment in 
the nature of a substitute, reflecting the product of the committee markup. On June 30, the committee 
reported the bill
, H.R. 2670, and filed its accompanying report,
 H.Rept. 118-125. On July 11-12, the 
House Rules Committe
e met to report an initial structured rule
, H.Res. 582, for the House to consider 
H.R. 2670; on July 13, the committee reported a second structured rul
e, H.Res. 583. On July 12-14, the 
House consider
ed amendments to the legislation. On July 14, the House passed the measure, as amended, 
by a vote of
 219-210.  
In the Senate
, on June 20-21, 2023, the seven subcommittees of the Senate Armed Services Committee 
(SASC) marked up draft legislative proposals with recommendations for matters in the FY2024 NDAA 
under their respective jurisdictions. One of the markups was held in an open session (Subcommittee on 
Personnel), and six were held in closed sessions. O
n June 21-22, the full committee considered the 
legislation in closed sessions. On June 23, Senators Jack Reed and Roger Wicker, Chair and Ranking 
Member, respectively, of SASC
, announced the committee voted 24-1 to order reported an original bill 
reflecting the product of the committee markup. On July 11,
 S. 2226 was reported to the Senate; on July 
12, the accompanying report
, S.Rept. 118-58, was filed. On July 19, the Senate began consideri
ng S. 
2226, to which Senator Chuck Schumer, the Senate Majority Leader, then offered (for Senator Reed) a 
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complete substitute amendment
 (S.Amdt. 935) based on the text of
 S. 2226 and additional provisions. 
Amendments to the substitute were considered and adopted. On July 27, the Senate passed the measure, 
as amended, by a vote of
 86-11. Pursuant to
 a unanimous consent agreement, immediately after passage 
of the bill, the Senate took 
up H.R. 2670 and agreed to an amendment consisting of the text of the just-
passed
 S. 2226, and passe
d H.R. 2670 with that amendment. 
Unlike for the FY2022 and FY2023 bills, the House and Senate agreed to convene
 a conference 
committee to reconcile the two versions of the FY2024 NDAA. On December 6, 2023, the conferees filed 
a conference report
, H.Rept. 118-301, containing the text of the negotiated bill and the accompanying 
joint explanatory statement of the committee of conference. On December 12, the Senate voted 85-15 to 
invoke cloture on the conference report, and then on December 13, the Senate voted 87-13 to agree to the 
conference report. On December 14, the House considered the conference report under its suspension of 
the rules procedures and voted 310-118 to agree to the conference report, allowing the measure to be 
enrolled for presentation to the President. On December 22, President Biden signed the legislation into 
law. 
Table 1 shows the status of legislative activity on the FY2024 NDAA. 
Table 1. FY2024 NDAA: Status of Legislative Activity 
Public 
House 
Senate 
Law 
Vote # 
Conference 
Vote # 
Conference 
(yeas- 
Report, 
(yeas- 
Report, 
Bill #, 
nays), 
Vote # 
Bill #, 
nays), 
Vote # 
P.L. #, 
Date 
Report #, 
Date 
(yeas-nays), 
Date 
Report #, 
Date 
(yeas-nays), 
Date 
Reported 
Date 
Passed 
Date Passed 
Reported 
Date 
Passed 
Date Passed 
Signed 
H.R. 2670, 
H.Rept. 
328 (219-
H.Rept. 118-
 
 
n/a (passed 
H.Rept. 118-
P.L. 118-
6/30/23 
118-125, 
210), 
301, 723 
with an 
301, 343 (87-
31, 
6/30/23 
7/14/23 
(310-118), 
amendment 
13), 12/13/23
 
12/22/23
  
12/14/23 
by UC), 
7/27/23 
 
 
 
 
S. 2226, 
S.Rept. 
212 (86-11), 
 
 
7/11/23 
118-58, 
7/27/23 
7/12/23 
Source: CRS analysis of selected actions in Congress.gov. 
Note: UC is unanimous consent. 
Figure 1 shows the number of days between the start of the fiscal year and enactment of the annual 
defense authorization act since FY1977, when the federal government transitioned to a fiscal year 
beginning October 1, 1976. 
  

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Figure 1. Days between Start of Fiscal Year and Enactment of Annual Defense 
Authorization Acts, FY1977-FY2024 
(in days) 
 
Sources: CRS analysis of dates of enactment of public law from CRS Report 98-756
, Defense Authorization and 
Appropriations Bills: FY1961-FY2021, by Barbara Salazar Torreon and Sofia Plagakis
; P.L. 117-81; P.L. 117-263; and
 P.L. 118-
31. 
Note: Positive values indicate number of days between start of the fiscal year and enactment of annual defense 
authorization acts. Thus, the figure shows that since FY1977 annual defense authorization legislation has been enacted, on 
average, 43 days after the beginning of the fiscal year (i.e., early November). Negative values indicate number of days 
between enactment of annual defense authorization acts and start of fiscal year. Annual defense authorization legislation 
for the fiscal years 1979, 1989, 1996, 2008, 2016, and 2021 was enacted over a presidential veto. 
 
 
Author Information 
 Brendan W. McGarry 
  Valerie Heitshusen 
Specialist in U.S. Defense Budget 
Specialist on Congress and the Legislative Process 
 
 
 
 
 
Disclaimer 
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