48 CFR · Federal Acquisition Regulation and Defense supplement

FAR and DFARS navigator

The codified text (eCFR, as of 2026-10-02). Under the Revolutionary FAR Overhaul ↗, agencies follow class deviations with new text for many parts while the formal rules go through the Federal Register: check the solicitation and your contract's clauses, which rule.

Ask the FAR

Try: · · ·

Clear

3 sections with “unallowable public relations and advertising costs”

  • FAR 31.205-1 Public relations and advertising costs.
    …oning, and roll-out ceremonies, to the extent specifically provided for by contract. (f) Unallowable public relations and advertising costs include the following: (1) All public relations and advertising costs, other than those specified …
  • DFARS 231.205-1 Public relations and advertising costs.
    …25.7303-2(e) for allowability provisions affecting foreign military sales contracts. (f) Unallowable public relations and advertising costs also include monies paid to the Government associated with the leasing of Government equipment, inc…
  • FAR 31.205-38 Selling costs.
    …5. The costs of any selling efforts other than those addressed in this cost principle are unallowable. (b) Selling activity includes the following broad categories: (1) Advertising. Advertising is defined at 31.205-1(b), and advertising c…

FAR (chapter 1)

DFARS (chapter 2, Defense)

Source: eCFR, 48 CFR chapters 1 and 2 (GPO GovInfo bulk data) ↗. Rule changes in progress: FAR, DFARS. Terms: glossary.