Clause Library / FAR Part 43
FAR 52.243-1
Changes—Fixed-Price
A contract clause under the Federal Acquisition Regulation, placed in Uniform Contract Format Section I (Contract clauses).
Contract clausePrescribed in 43.205(a)(1)UCF Section IIncorporated by reference
When it applies
Required by FAR 43.205(a)(1) in fixed-price noncommercial supply/service contracts — authorizes unilateral Government changes within scope and equitable adjustment. (Alt I services-only, Alt II services+supplies, Alt III A-E, Alt IV transportation — not auto-selected.)
Prescription
The FAR directs use of 52.243-1 at 43.205(a)(1) — read the prescribing section on acquisition.gov →.
Official text
The full, authoritative text of 52.243-1 is on acquisition.gov: View FAR 52.243-1 →
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