 
 
 
 INSIGHTi 
 
FY2022 NDAA: Active Component End-
Strength  
Updated January 4, 2022 
Background 
The term 
end-strength refers to either the 
authorized or 
actual personnel strength of a specified branch of 
the military on September 30th of a given year (i.e., the last day of the fiscal year).  
Each year, in the National Defense Authorization Act (NDAA), Congress sets an 
authorized end-strength for active component personnel in each of the armed forces. The term authorized strength means “the 
largest number of members authorized to be in an armed force, a component, a branch, a grade, or any 
other category of the armed forces” 
(10 U.S.C. §101(b)(11)). Authorized 
end-strengths are maximum 
strength levels on September 30th, the end of the fiscal year. Congress also periodically sets minimum 
end-strength levels for the active component, which may be identical to or lower than the authorized end-
strength.  
While Congress authorizes minimum and maximum end-strengths, each military service manages its 
force, through recruiting and retention efforts, to achieve an 
actual end-strength. The actual end-strength 
is the number of individuals who are members of a given armed force on September 30th. Normally, this 
actual end-strength falls within the congressionally authorized minimum and maximum end-strengths. 
However, there are circumstances in which the actual end-strength may fall outside the authorized range. 
For example, under
 10 U.S.C. §115(f), the Secretary of Defense can increase the active component end-
strength of any armed force above the authorized end-strength by up to 3%. On the other hand, recruiting 
and retention shortfalls may cause one or more of the armed forces to fall below their minimum 
authorized strength. 
Congress varies the authorized end-strengths over time in response to various factors, such as national 
security priorities, force structure changes, and budgetary constraints. For example, from FY2001-
FY2011, in response to the demands of wars in Afghanistan and Iraq, Congress substantially increased the 
authorized strength of the Army and Marine Corps. Then, from FY2011-FY2016, Congress reversed 
those increases in light of the withdrawal of most U.S. forces from Iraq in 2011, the drawdown of U.S. 
forces in Afghanistan beginning in 2012, and budgetary constraints.  
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Figure 1 below depicts changes the actual end-strength of the Army, Navy, Marine Corps, and Air Force 
from FY2001-FY2021. The Air Force line includes
 Space Force personnel for FY2020-FY2021. 
 
Figure 1. Actual End-Strength of Active Component Armed Forces, FY2001-FY2021 
 
Source: Defense Manpower Data Center, 
at https://dwp.dmdc.osd.mil/dwp/app/dod-data-reports/workforce-reports. 
 
FY2022 NDAA  
The Bide
n Administration’s FY2022 budget requested end-strengths of 485,000 for the Army, 346,200 for 
the Navy, 178,500 for the Marine Corps, 328,300 for the Air Force, and 8,400 for the Space Force. In 
comparison to FY2021 authorized end-strengths, these requests represented decreases for the Army (-
900), Navy (-1,600), Marine Corps (-2,700), and Air Force (-5,175), plus an initial Space Force request of 
8,400. 
In t
he FY2020 NDAA, Congress authorized the establishment of the United States Space Force, a new 
armed force within the Department of the Air Force. At first
, Air Force strength authorizations were used 
to assign personnel to the Space Force. However, the FY2021 NDAA conference report 
(H.Rept. 116-
617) stated, “The conferees expect the Department of the Air Force to submit a formal request and 
justification for [U.S. Space Force] end strength to the congressional defense committees as part of the 
President’s Department of Defense budget request for fiscal year 2022.” As a resul
t, the President’s 
FY2022 budget request asked for a Space Force end-strength authorization of 8,400.  
The initial House-passed version of the FY2022 NDAA
, H.R. 4350, sought end-strengths that were 
identical to the Administration request. The Senate Armed Services Committee reported version
, S. 2792, 
sought end-strengths that were identical to the Administration request for the Army, Navy, Marine Corps, 
and Space Force, but a higher end-strength for the Air Force (+920 compared to the Administration 
request). 
The enacted version of the FY2022 NDAA
, S. 1605 (P.L. 117-81), authorized end-strengths identical to 
the Administration’s request for the Army, Marine Corps and Space Force, but higher end-strengths for 
the Navy (+720) compared to the Administration request) and Air Force (+920).  
  
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See Table 1 for a comparison of active component end-strength authorizations in the three versions of the 
FY2022 NDAA discussed above.  
See 
Table 2 for a comparison of the FY2021 congressionally authorized end-strengths, the FY2022 
President’s budget request, and the FY2022 congressionally authorized end-strengths.  
Table 1. Comparison of FY2022 NDAA Active Component End-Strength Provisions 
 
H.R. 4350 
S. 2792 
P.L. 117-81 
House Passed 
SASC Reported 
Enacted 
 
Sec. 401 would have authorized a 
Sec. 401 would have authorized a 
Sec. 401 authorizes a total active duty 
total active duty end-strength of 
total active duty end-strength of 
end-strength of 1,348,040 as of 
1,346,400 as of September 20, 2022, 
1,347,320 as of September 20, 2022, 
September 20, 2022, including: 
including: 
including: 
485,000 for the Army 
485,000 for the Army 
485,000 for the Army 
346,920 for the Navy 
346,200 for the Navy 
346,200 for the Navy 
178,500 for the Marine Corps 
178,500 for the Marine Corps 
178,500 for the Marine Corps 
329,220 for the Air Force 
328,300 for the Air Force 
329,220 for the Air Force 
    8,400 for the Space Force 
    8,400 for the Space Force  
    8,400 for the Space Force 
 
Table 2. Comparison of FY2021 and FY2022 Active Component End Strength 
FY2021 Authorized, FY2022 President’s Budget Request, FY2022 Authorized 
Difference 
Difference 
Between 
Between 
Service 
FY2022 
FY2021 
FY2021 
FY2021 
President’s 
Authorized and  FY2022 NDAA   Authorized and 
Authorized 
Budget 
FY22 Budget 
Authorized 
FY2022  
(P.L. 116-283) 
Request 
Request 
(P.L. 117-81) 
Authorized 
Army 
485,900 
485,000 
-900 
485,000 
-900 
Navy 
347,800 
346,200 
-1,600 
346,920 
-880 
Marine Corps 
181,200 
178,500 
-2,700 
178,500 
-2,700 
Air Force 
333,475 
328,300 
-5,175 
329,220 
-4,255 
Space Force 
n.a.* 
8,400 
+8,400 
8,400 
+8,400 
Total 
1,348,375 
1,346,400 
-1,975 
1,348,040 
-335 
Notes: The FY2021 NDAA did not specify an authorized end-strength for the Space Force, but the FY2022 President’s 
Budget Request lists the Space Force’s FY2021 end-strength as 6,400.  This appears to reflect the projected actual end-
strength number for the Space Force rather than the authorized end-strength (see discussion above). 
 
 
 
 
 
  
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Author Information 
 Lawrence Kapp 
   
Specialist in Military Personnel Policy  
 
 
 
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IN11780 · VERSION 5 · UPDATED