SpendQueryBeta

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

22 sections with “certified mail”

  • FAR 52.215-20 Requirements for Certified Cost or Pricing Data and Data Other Than Certified Cost or Pricing Data.
    As prescribed in 15.408(l), insert the following provision: Requirements for Certified Cost or Pricing Data and Data Other Than Certified Cost or Pricing Data (NOV 2021) (a) Exceptions from certified cost or pricing data. (1) In lieu of s…
  • FAR 2.101 Definitions.
    …cable, that are required to be performed or approved by a person licensed, registered, or certified to provide those services; (2) Professional services of an architectural or engineering nature performed by contract that are associated wi…
  • FAR 19.306 Protesting a firm's status as a HUBZone small business concern.
    …rce procurements, SBA or the contracting officer may protest the prospective contractor's certified HUBZone status; for all other procurements, SBA, the contracting officer, or any other interested party may protest the apparent successful …
  • FAR 19.1505 Set-aside procedures.
    …nding to the NAICS code assigned to the contract; and (2)(i) For an EDWOSB set-aside, is certified pursuant to 13 CFR 127.300 as an EDWOSB or has a pending application for EDWOSB certification in the DSBS (see 13 CFR 127.504(a)); or (ii) …
  • FAR 52.212-3 Offeror Representations and Certifications—Commercial Products and Commercial Services.
    …who are economically disadvantaged in accordance with 13 CFR part 127, and the concern is certified by SBA or an approved third-party certifier in accordance with 13 CFR 127.300. It automatically qualifies as a women-owned small business el…
  • FAR 3.705 Procedures.
    …osed action to declare void and rescind the contract shall be made in writing and sent by certified mail, return receipt requested. (2) A thirty calendar day period after receipt of the notice, for the contractor to submit pertinent inform…
  • FAR 33.211 Contracting officer's decision.
    …t. (b) The contracting officer shall furnish a copy of the decision to the contractor by certified mail, return receipt requested, or by any other method that provides evidence of receipt. This requirement shall apply to decisions on claim…
  • FAR 49.109-7 Settlement by determination.
    …e amount due the contractor, the TCO shall give the contractor at least 15 days notice by certified mail (return receipt requested) to submit written evidence, so as to reach the TCO on or before a stated date, substantiating the amount pre…
  • FAR 52.219-9 Small Business Subcontracting Plan.
    …mall disadvantaged business concerns (including ANCs and Indian tribes that have not been certified by SBA as small disadvantaged businesses), women-owned small business concerns, and for NASA only, Historically Black Colleges and Universit…
  • FAR 9.406-3 Procedures.
    …tion, if any, or to the last known email address as confirmed by the agency; or (iii) By certified mail to the last known street address with return receipt requested. (2) The notice shall be sent— (i) To the contractor, the contractor's…
  • FAR 11.403 Supplies or services.
    …send the contract, notice of award, acceptance of proposal, or other contract document by certified mail, return receipt requested, or by any other method that will provide evidence of the date of receipt. (e) In invitations for bids, if t…
  • FAR 19.302 Protesting a small business representation or rerepresentation.
    …of the protest and a blank SBA Form 355, Application for Small Business Determination, by certified mail, return receipt requested. (f)(1) Within 15 business days after receipt of a protest or request for a formal size determination or wit…
  • FAR 32.604 Demand for payment.
    …racting officer shall— (1) Furnish a copy of the demand for payment to the contractor by certified mail, return receipt requested, or by any other method that provides evidence of receipt; and (2) Forward a copy of the demand to the payme…
  • FAR 32.605 Final decisions.
    …yment. (c) The contracting officer shall— (1) Furnish the decision to the contractor by certified mail, return receipt requested, or by any other method that provides evidence of receipt; and (2) Forward a copy to the payment office iden…
  • FAR 49.102 Notice of termination.
    …confirmation of receipt by the contractor. When the notice is mailed, it shall be sent by certified mail, return receipt requested. When the contracting office arranges for hand delivery of the notice, a written acknowledgment shall be obta…
  • FAR 49.601-2 Letter notice.
    …cts for other than supplies and in terminating subcontracts. This notice shall be sent by certified mail, return receipt requested, or electronically, provided evidence of receipt is received by the contracting officer. If no prior electron…
  • FAR 52.242-13 Bankruptcy.
    …ing to bankruptcy, whether voluntary or involuntary, the Contractor agrees to furnish, by certified mail or electronic commerce method authorized by the contract, written notification of the bankruptcy to the Contracting Officer responsible…
  • DFARS 222.406-8 Investigations.
    …edures at PGI 222.406-8(a). (c) Contractor notification. (4)(A) Notify the contractor by certified mail of any finding that it is liable for liquidated damages under the Contract Work Hours and Safety Standards (CWHSS) statute. The notific…
  • FAR 52.232-27 Prompt Payment for Construction Contracts.
    …icer. Notify the Contracting Officer upon— (i) Reduction of the amount of any subsequent certified application for payment; or (ii) Payment to the subcontractor of any withheld amounts of a progress payment, specifying— (A) The amounts w…
  • FAR 27.306 Licensing background patent rights to third parties.
    …rtunity for a hearing, and the agency shall notify the contractor of the determination by certified or registered mail. The notification shall include a statement that the contractor must bring any action for judicial review of the determin…
  • FAR 32.905 Payment documentation and process.
    … receiving report or other Government documentation authorizing payment (e.g., Government certified voucher). The agency receiving official should forward the receiving report or other Government documentation to the designated payment offi…
  • FAR 52.225-25 Prohibition on Contracting with Entities Engaging in Certain Activities or Transactions Relating to Iran—Representation and Certifications.
    …52.225-6, 52.225-12, 52.225-24, or comparable agency provision); and (2) The offeror has certified that all the offered products to be supplied are designated country end products or designated country construction material. (End of provi…

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.