RDT&E Program Element · President's Budget PB2027

C4I Interoperability

PE 0208045K·Defense-Wide·Approp. 0400 — RDT&E·BA6 — RDT&E Management Support
FY2027 Request
$72.6M
Defense-Wide · RDT&E
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Defense-Wide requests $72.6M in FY2027, sustained across the five-year plan. In the FY2027 defense authorization, the House funded it in full; the Senate funded it in full; House appropriators funded it in full.

FY2027 Request
$72.6M
▲ 2.4% vs FY2026
FY2026 Enacted
$70.9M
▲ 8.8% vs FY2025
FY2025 Actual
$65.1M
Prior year

For fiscal year 2027, Defense-Wide agencies are requesting $72.6M for C4I Interoperability under RDT&E program element 0208045K, up 2.4% over FY2026.

Funding trajectory

Funding profile, FY2025–FY2031

Prior years are actuals, the budget year is the request, and the outyears are the FYDP plan. Estimate types are colored and never summed into one figure.

255075065.1FY25ACTUAL70.9FY26ENACTED72.6FY27REQUEST73.5FY2873.4FY2976.4FY3076.4FY31
Actual Enacted Request Outyear (FYDP)
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual65.1
FY2026Enacted70.9
FY2027Request72.6
FY2028Outyear73.5
FY2029Outyear73.4
FY2030Outyear76.4
FY2031Outyear76.4
Where it sits

Acquisition lifecycle

This program is funded in RDT&E Budget Activity 6 — RDT&E Management Support.

Complete
Research
BA 1–2
Complete
Advanced Technology
BA 3
Complete
Prototyping
BA 4
Current
Development & Fielding
BA 5–7
Inside the program element

1 project rolls up into PE 0208045K

Projects are the summable leaves — the PE total is their sum, never added to it. Program elements and projects carry the full five-year plan; activities stop at the budget year. This PE moves 2% overall, which can hide much larger swings below.

Project T-40

Major Range Test Facility Base Operations

$72.6MFY2027 request ▲ 2%
FY2025 actual$65.1M
FY2026 enacted$70.9M
FY2027 request$72.6M

DISA, through JITC, manages the Department’s Joint Interoperability TE&C process structured to provide meaningful and independent test results, which increases stakeholder confidence that capabilities fielded to the warfighter meet mission needs. The T&E activities target evaluation strategies in the design, development, operational, integration and/or sustainment aspects of every program supported. JITC’s T&E efforts span a variety of test categories that support Department-wide enterprise solutions. JITC also provides services for Service, Agency, and mission partner developmental, operational, cyber and interoperability TE&C efforts. As the DoW Joint Interoperability Certification Authority, JITC annually: • Ensures interoperability test, evaluation, and certification standard practices and procedures are in accordance with DoW policy. • Evaluates DoW’s IT/NSS for joint interoperability and issues Joint interoperability certifications and assessments. • Manages the scheduling and executes interoperability test events. These events evaluate, certify, and re-certify Service/Agency systems. • Reviews Joint Capabilities Integration and Development System documents, interoperability support plans, and interoperability policy waivers on behalf of the DoW Chief Information Officer (CIO) and the Joint Staff. These reviews ensure compliance with DoW interoperability testing policy and requirements. • Serves as executive agent to DoW’s Interoperability Steering Group, in support of the DoW CIO, and uses forum to coordinate policy, adjudicate issues, and to process Interim Certificates to Operate. JITC made significant strides in updating test and evaluation methodologies to support new acquisition pathways resulting in increased integrated testing, conducting smaller events, and informing decision makers more often. This enables releasing capabilities to the warfighter more efficiently. On 4 OCT 2022, the Operational Test Agency (OTAs) for the military services and JITC jointly released an “Operational Test Agencies Six Core Test Principles” to encourage early engagement, increased agility, and flexibility to support continuous evaluations for programs and improved support for agile acquisition.

Accomplishments / planned programs (R-2A) — prior, current and budget year only
FY2025 actual$65.1M
FY2026 enacted$70.9M
FY2027 request$72.6M

IOP: • Deliver JITC analysis tools to support Special Access Program requirements for facilities that do not currently have test automation to inform test results. • Continue to mature our cloud testing capabilities to enable more effective data sharing. • Continue to build our Link 22 test capability by completing a full Link 22…

Read the FY2027 plan →
Congressional action

Congressional marks

Committee marks on the FY2027 request. Adds and cuts are reconciled in conference before they become law.

RequestPresident's Budget
$72.6M
House NDAA (HASC)HASC
$72.6M full · +$0
Senate NDAA (SASC)SASC
$72.6M full · +$0
House Approps (HAC-D)HAC_D
$72.6M full · +$0
unresolved as of 2026-07-27. These are FY2027 authorization marks (NDAA); appropriations and the conference agreement may differ.
Program detail

Mission & acquisition strategy

The Joint Interoperability Test Command (JITC) is the only joint element of the Department of War’s (DoW) Major Range and Test Facility Base (MRTFB) that primarily performs Test and Evaluation (T&E) of Information Technology and National Security Systems (IT/NSS) in support of Command, Control, Communications, Computers and Intelligence (C4I). JITC is the DoW's only Joint Interoperability Certifier at the only Non-Service Operational Test Agency. Interoperability is vital to the DoWs success as it allows forces, units and/or systems of military services, and U.S. partners to share data, information, materiel, and services required to operate collaboratively.

Project T-40 — Major Range Test Facility Base Operations
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Provenance

Cite this page

Sources
FY2027 Office of the Secretary of Defense RDT&E Budget Justification · Exhibits R-2 / R-3 · PE 0208045K (President's Budget PB2027) — and FY2027 NDAA committee marks, as tracked 2026-07-27.
Suggested citation
HitchAI, "C4I Interoperability (PE 0208045K)," federal budget intelligence, PB2027 vintage. hitchintel.com/programs/0208045K
Machine access
Markdown twin /programs/0208045K.md · MCP mcp.hitchintel.combudget_get_program_element, budget_get_cong_marks