InstagramFacebookLinkedinMediumYoutubeX
glossary

DFARS (Defense Federal Acquisition Regulation Supplement)

What is the DFARS?

The Defense Federal Acquisition Regulation Supplement, or DFARS, is the Department of Defense's addition to the Federal Acquisition Regulation. The FAR sets the governmentwide baseline; the DFARS layers on the rules, procedures, and clauses that are specific to defense buying. When you contract with a military service or a defense agency, you comply with both.

How it relates to the FAR

The DFARS mirrors the FAR's structure, so its parts and clause numbers line up with their FAR counterparts. A practical tell is the clause number: FAR clauses begin with 52, while DFARS clauses begin with 252. Seeing a 252 clause in a solicitation is your cue that a defense-specific requirement applies.

What it covers and why it matters

The DFARS addresses areas the broader FAR does not fully cover for defense, including supply-chain and domestic-source rules, specialty-item requirements, and cybersecurity obligations for protecting sensitive defense information. Some of these carry significant compliance cost, so reading the DFARS clauses in a solicitation early tells you what you are really signing up for. For defense contractors, a 252-series clause you did not plan for can change both your price and your risk, which is why scanning for them is part of any serious bid or no-bid decision.

OryonIQ Events

Events

Are you curious about the networking events near you? Together we can expand your network and watch your pipeline exponentially grow.