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

7 sections with “AAC”

  • FAR 4.1603 Procedures.
    …t six positions identify the department/agency and office issuing the instrument. Use the AAC assigned to the issuing office for positions 1 through 6. Civilian agency points of contact for obtaining an AAC are on the AAC Contact list maint…
  • DFARS 252.232-7006 Wide Area WorkFlow Payment Instructions.
    …(a) Definitions. As used in this clause— Department of Defense Activity Address Code (DoDAAC) is a six position code that uniquely identifies a unit, activity, or organization. Document type means the type of payment request or receiving …
  • FAR 4.605 Procedures.
    … (e) Office codes. Agencies shall by March 31, 2016— (1) Use the Activity Address Code (AAC), as defined in 2.101, assigned to the issuing contracting office as the contracting office code, and (2) Use the AAC assigned to the program/fun…
  • FAR 2.101 Definitions.
    …des developing the overall strategy for managing the acquisition. Activity Address Code (AAC) means a distinct six-position code consisting of a combination of alpha and/or numeric characters assigned to identify specific agency offices, u…
  • FAR 4.1601 Policy.
    …ndicate the agency, followed by alpha-numeric characters; the 2017 format instead has the AAC in the beginning 6 positions. (c) Change in the Procurement Instrument Identifier after its assignment. (1) Agencies shall not change the PIID un…
  • DFARS 252.204-7019 Notice of NIST SP 800-171 DoD Assessment Requirements.
    …or a specific organization (identified by Department of Defense Activity Address Code (DoDAAC)). (iii) All industry CAGE code(s) associated with the information system(s) addressed by the system security plan. (iv) A brief description of …
  • DFARS 252.204-7020 NIST SP 800-171 DoD Assessment Requirements.
    …or a specific organization (identified by Department of Defense Activity Address Code (DoDAAC)). (iii) All industry CAGE code(s) associated with the information system(s) addressed by the system security plan. (iv) A brief description of …

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.