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Defense Primer: Procurement


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Updated February 7, 2020


While the common use of the word procurement implies
the process of obtaining goods or services, uses of the word
procurement by national security experts and practitioners
generally refers to a specific title within the annual National
Defense Authorization Act (NDAA) and defense
appropriations legislation.


The Department of Defense (DOD) procurement
appropriations title provides funds for non-construction-
related investment costs the costs to acquire capital assets,
such as an F-35 Joint Strike Fighter aircraft or a Virginia-
class submarine. Investment costs are distinguished from
expenses the costs of resources consumed in operating the
Department, such as food and fuel. DOD uses procurement
appropriations to obtain various categories of materiel, such
as:

* new military hardware, such as aircraft, ships, armored
   vehicles, and other major equipment (e.g., radios and
   satellites);
* upgrades to existing equipment, including extending
   service life or remanufacturing existing systems;
* weapons and ammunition, ranging from air-to-air
   missiles to rifle rounds; and
*  spare parts, particularly those that are centrally
   managed.

Procurement funding authorized in a given fiscal year can
usually be obligated over a period of three years. The most
prominent exception is Navy Shipbuilding and Conversion
funding, which is available for five years.

The Department of Defense Appropriations Act, 2020
(Division A of P.L. 116-93) provided $133.9 billion in
procurement funding for DOD in the regular, or base,
budget (see Table 1), in addition to $11.8 billion in
procurement funding designated for Overseas Contingency
Operations (OCO).

      NDAA and Defense Appropriations
  CRS In Focus IFIO515, Defense Primer: The NDAA Process, by
  Valerie Heitshusen and Brendan W. McGarry, and CRS In
  Focus lF10514, Defense Primer Defense Appropriations
  Process, by James V. Saturno and Brendan W. McGarry.



In general, Congress appropriates money for defense
procurement under a policy of fullfunding, which requires
Congress to fund the entire procurement cost of end items
(such as AIM-9 Sidewinder missiles or KC-46A refueling


tankers) in one fiscal year. In other words, the total funding
necessary to acquire a useable end item is approved by
Congress in a single fiscal year, even though related work
may span many years. In a handful of cases, programs are
procured using incrementalfunding. Under incremental
funding, a system's cost is divided into two or more annual
portions, or increments, that can reflect the need to make
annual progress payments to the contractor as the system is
built. Incremental funding has principally been used to
procure certain ships and submarines.

Table I. DOD Procurement Appropriation Subtitles,
by Enacted Base Budget Amounts, FY2020

                                              U.S. $
      Procurement Subtitle (Acronym)         (billions)

 Shipbuilding and Conversion, Navy (SCN)         $24.0
 Other Procurement, Air Force (OPAF)             $21.4
 Aircraft Procurement, Navy (APN)                $19.6
 Aircraft Procurement, Air Force (APAF)          $17.5
 Other Procurement, Navy (OPN)                   $10.1
 Other Procurement, Army (OPA)                    $7.6
 Procurement, Defense-Wide (PDW)                  $5.3
 Procurement of Weapons and Tracked Combat        $4.7
 Vehicles, Army (WTCV)
 Weapons Procurement, Navy (WPN)                  $4.0
 Aircraft Procurement, Army (APA)                 $3.8
 Missile Procurement, Army (MIPA)                 $3.0
 Procurement, Marine Corps (PMC)                  $2.9
 Procurement of Ammunition, Army (PAA)            $2.6
 Missile Procurement, Air Force (MPAF)            $2.6
 Space Procurement, Air Force (SPAF)              $2.4
 Procurement of Ammunition, Air Force (PAAF)      $1.6
 Procurement of Ammunition, Navy and Marine       $0.8
 Corps (PANMC)
 Defense Production Act Purchases                 $0.1
 TOTAL                                          $133.9
 Source: CRS analysis of the FY2020 Department of Defense
 Appropriations Act (Division A of P.L. I 16-93) and accompanying
Joint Explanatory Statement.
Note: Numbers may not sum due to rounding and exclude Overseas
Contingency Operations (OCO) funding for procurement programs.

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