FAR and DFARS › FAR Part 28: Bonds and Insurance › Subpart 28.1
FAR 28.101-3 Authority of an attorney-in-fact for a bid bond.
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.
In plain English
This section explains what an attorney-in-fact must provide when signing a bid bond on behalf of a surety, and how contracting officers handle the power of attorney at bid opening. It matters because missing or invalid authority evidence can affect whether your bid is considered responsive or whether you are found responsible.
Applies to: Bidders using an attorney-in-fact to sign bid bonds, and contracting officers reviewing them
What it requires
- Include evidence of authority to bind the surety with the bid bond when signing as attorney-in-fact
- Provide a signed and dated power of attorney at the time of bid opening
Key terms: attorney-in-fact · bid bond · power of attorney · surety · responsiveness
Written by AI from this section's text. A guide, not legal advice: the text below rules.
The text
(a) Any person signing a bid bond as an attorney-in-fact shall include with the bid bond evidence of authority to bind the surety.
(b) An original, or a photocopy or facsimile of an original, power of attorney is sufficient evidence of such authority.
(c) For purposes of this section, electronic, mechanically-applied and printed signatures, seals and dates on the power of attorney shall be considered original signatures, seals and dates, without regard to the order in which they were affixed.
(d) The contracting officer shall—
(1) Treat the failure to provide a signed and dated power of attorney at the time of bid opening as a matter of responsiveness; and
(2) Treat questions regarding the authenticity and enforceability of the power of attorney at the time of bid opening as a matter of responsibility. These questions are handled after bid opening.
(e)(1) If the contracting officer contacts the surety to validate the power of attorney, the contracting officer shall document the file providing, at a minimum, the following information:
(i) Name of person contacted.
(ii) Date and time of contact.
(iii) Response of the surety.
(2) If, upon investigation, the surety declares the power of attorney to have been valid at the time of bid opening, the contracting officer may require correction of any technical error.
(3) If the surety declares the power of attorney to have been invalid, the contracting officer shall not allow the bidder to substitute a replacement power of attorney or a replacement surety.
(f) Determinations of non-responsibility based on the unacceptability of a power of attorney are not subject to the Certificate of Competency process of subpart 19.6 if the surety has disavowed the validity of the power of attorney.
Sections that refer to it
- 19.602-1 Referral.
← 28.101-2 Solicitation provision or contract clause. · 28.101-4 Noncompliance with bid guarantee requirements. →
Rule changes for FAR Part 28
- Federal Acquisition Regulation: Revolutionary Federal Acquisition Regulation Overhaul Parts 14, 28, 36, and 52 ↗ · proposed 2026-09-18 · comments due 2026-10-19
- Federal Acquisition Regulation; Technical Amendments ↗ · final rule 2024-04-22 · effective 2024-05-22
Source: eCFR, 48 CFR chapters 1 and 2 (GPO GovInfo bulk data) ↗. Plain words for the terms: glossary.