FAR and DFARS › FAR Part 43: Contract Modifications
FAR 43.000 Scope of part.
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 that FAR Part 43 sets the policies and procedures for preparing and processing contract modifications across all contract types, including construction and architect-engineer contracts. It also clarifies two situations that are not covered: orders that don't change contract terms, and modifications for extraordinary contractual relief. Knowing the scope helps a contractor understand when the modification rules in this part apply.
Applies to: Contract modifications for all types of contracts, with stated exclusions
Key terms: contract modifications · construction and architect-engineer contracts · delivery orders · indefinite-delivery contracts · extraordinary contractual relief
Written by AI from this section's text. A guide, not legal advice: the text below rules.
The text
This part prescribes policies and procedures for preparing and processing contract modifications for all types of contracts including construction and architect-engineer contracts. It does not apply to—
(a) Orders for supplies or services not otherwise changing the terms of contracts or agreements (e.g., delivery orders under indefinite-delivery contracts); or
(b) Modifications for extraordinary contractual relief (see Subpart 50.1).
Rule changes for FAR Part 43
- Federal Acquisition Regulation; Technical Amendments ↗ · final rule 2025-08-07 · effective 2025-08-07
Source: eCFR, 48 CFR chapters 1 and 2 (GPO GovInfo bulk data) ↗. Plain words for the terms: glossary.