Authority
E.O. 14275, Restoring Common Sense to Federal Procurement; E.O. 14265, Modernizing Defense Acquisitions and Spurring Innovation in the Defense Industrial Base; OMB Memorandum M-25-26, Overhauling the Federal Acquisition Regulation
Summary
The deviation requires contracting officers to use revised versions of Federal Acquisition Regulation (FAR) Part 31 and Defense FAR Supplement (DFARS) Part 231, Contract Cost Principles and Procedures, effective 2026-02-01. The revised FAR Part 31 is published on the Revolutionary FAR Overhaul web page. The attached DFARS Part 231 and DFARS Procedures, Guidance, and Information (PGI) 231 replace the currently codified text.
Contracting Officer Actions
1
Effective 2026-02-01, use the revised FAR Part 31 from the Revolutionary FAR Overhaul web page. It replaces the codified text at 48 CFR chapter 1.
2
Effective 2026-02-01, use the attached DFARS Part 231 from this deviation. It replaces the codified text at 48 CFR chapter 2.
3
Effective 2026-02-01, use the attached DFARS PGI 231 from this deviation. It replaces the PGI text on the Defense Pricing, Contracting, and Acquisition Policy web page.
4
Insert clause 252.231-7000, Supplemental Cost Principles, in all solicitations and contracts subject to FAR Subparts 31.1, 31.2, 31.6 and 31.7.
Expiration
This deviation remains in effect until rescinded or incorporated into the FAR, DFARS and DFARS PGI. No specific expiration date applies.
IR&D reporting
Major contractors must report independent research and development (IR&D) projects to the Defense Technical Information Center (DTIC) using the online portal. Updates are required at least annually and upon project completion.
Non-major contractor IR&D
Contractors that are not major contractors are encouraged, but not required, to use the DTIC online input form for IR&D projects.
Inquiries
Direct questions about this deviation to osd.pentagon.ousd-a-s.mbx.dfars@mail.mil.