# Project ACX-07 — ADVANCED COMPLEX SYSTEMS SUPPORT

**Program element:** 0603468E — Advanced Complex Systems  
**Project:** ACX-07  
**Component:** Defense-Wide  
**Appropriation:** 0400 — RDT&E, Defense-Wide  
**Budget Activity:** 3 — Advanced Technology Development  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/0603468E/ACX-07  
**Parent:** https://hitchintel.com/programs/0603468E

## Summary

Project ACX-07 — ADVANCED COMPLEX SYSTEMS SUPPORT requests $40.3M in FY2027, 7.5% of the $540.4M requested for program element 0603468E, up 106% on FY2026.

## Funding profile

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 0.0 |
| FY2026 | Enacted | 19.6 |
| FY2027 | Request | 40.3 |
| FY2028 | Outyear | 85.6 |
| FY2029 | Outyear | 87.0 |
| FY2030 | Outyear | 77.6 |
| FY2031 | Outyear | 77.6 |

> Estimate types are not summed. This project is one leaf of PE 0603468E; the PE total is the sum of its projects, never added to them.

## What project ACX-07 buys

The Advanced Complex Systems Support project contains management costs in support of DARPA functions and activities across the entire Advanced Complex Systems PE. These costs include: DARPA classified and unclassified network support and equipment; contractor support; classified program security; building security; commercial transition services that increase the likelihood that DARPA-funded technologies remain in the U.S. and provide new capabilities for national defense; DARPA outreach to universities and industry; external contracting, financial and support fees; Program Manager Intragovernmental Personnel Act (IPA) Funding; Program Managers from other Government Agencies; and similar operating expenses. Agency support is allocated on a pro-rata basis across the Agency's BA1, BA2 and BA3 PEs and, therefore, fluctuates per PE by fiscal year based on the total Agency budget in that fiscal year. Prior to FY 2026, support requirements in this Project were funded in PE 0603286E, Project AIR-01, and PE 0603287E, Project SPC-01.

## What is NOT on this page

Congressional marks, the R-2 mission description and acquisition strategy, the industry vs government split of the whole request, and related program elements are recorded at **program-element** grain — an NDAA mark lands on a PE, never on a project. They are at https://hitchintel.com/programs/0603468E.

## Source & machine access

- **Source:** FY2027 Office of the Secretary of Defense RDT&E Budget Justification, Exhibits R-2/R-2A/R-3, PE 0603468E project ACX-07 (PB PB2027).
- **MCP:** `mcp.hitchintel.com` — `budget_get_program_element(pe="0603468E")`.

*HitchAI is an independent intelligence service, not affiliated with the U.S. Department of Defense. Budget figures are requests/estimates, not obligations.*