Defense Primer: Future Years Defense Program (FYDP) (CRS Report for Congress)
| Release Date |
Revised Nov. 22, 2024 |
| Report Number |
IF10831 |
| Report Type |
In Focus |
| Authors |
Brendan W. McGarry; Alexandra G. Neenan |
| Source Agency |
Congressional Research Service |
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Summary:
The Future Years Defense Program (FYDP, commonly
pronounced “fye-dip”) is a projection of the forces,
resources, and programs to support Department of Defense
(DOD) operations. The FYDP is compiled every year and
typically completed during the programming phase of the
Planning, Programming, Budgeting, and Execution (PPBE)
process. DOD updates the projection during the budgeting
phase to reflect DOD’s final funding decisions presented in
the annual President’s budget request.
The FYDP reflects the planned allocation of DOD
resources to major strategic efforts over a multiyear period.
According to the department’s Future Years Defense
Program (FYDP) Structure Handbook, the FYDP is
intended in part to link DOD’s internal review structure for
programs with Congress’s review structure for resources,
including funding.
The FYDP projects DOD funding, manpower, and force
structure needs over a five-year period. The projection is
typically depicted with defense resources for the two
previous fiscal years and force structure estimates for the
three subsequent fiscal years. For example, the FY2021
FYDP reflects FY2019 and FY2020 appropriations, the
current budget year estimate (FY2021) as part of the fiveyear program (FY2021-FY2025), and the estimated force
structure through FY2028.
Primarily used as a planning tool, the FYDP allows DOD
and the military services to plan for anticipated changes to
programs or priorities. Such changes may include
reallocating funding for a major defense acquisition
program transitioning from research and development to
procurement; shifting funding from multiple programs to a
larger, higher-priority procurement; or identifying funding
for an emerging priority expected to require resourcing over
a period of multiple years.
DOD Financial Management Regulation describes the
FYDP as “a series of reports that record and display
resource decisions” during the PPBE cycle. FYDP data are
stored in a relational database. Users can enter, update, and
view their organization’s portion of the FYDP through a
web-based application hosted on the department’s classified
network.
Title 10, Section 221, of the United States Code (hereinafter
U.S.C.), stipulates that the Secretary of Defense shall
submit a FYDP to Congress in conjunction with the
President’s budget request. A classified version of the
FYDP is generally submitted to the congressional
committees with jurisdiction over defense matters. Section
1042 of the National Defense Authorization Act for Fiscal
Year 2018 (P.L. 115-91) amended 10 U.S.C. §221 in part to
require the Secretary to submit an unclassified electronic
version of the FYDP. However, while the structure of the
FYDP is unclassified, the actual FYDP data remains
classified. DOD has proposed removing the statutory
requirement to submit an unclassified FYDP to avoid
inadvertently revealing sensitive information about
weapons development, force structure, and strategic plans.
