48 CFR 16.201 : Federal Acquisition Regulations System (Section 1.000 To Parts 9906-9999) — Federal Acquisition Regulation (Parts 1 - 99) (Section 1.000 To Parts 54-99) — Contracting Methods And Contract Types (Parts 13 - 18) (Section 13.000 To Section 18.204) — Types Of Contracts (Section 16.000 To Section 16.703) — Fixed-Price Contracts (Section 16.201 To Section 16.207-3) — General.

(a) Fixed-price types of contracts provide for a firm price or, in appropriate cases, an adjustable price. Fixed-price contracts providing for an adjustable price may include a ceiling price, a target price (including target cost), or both. Unless otherwise specified in the contract, the ceiling price or target price is subject to adjustment only by operation of contract clauses providing for equitable adjustment or other revision of the contract price under stated circumstances. The contracting officer shall use firm-fixed-price or fixed-price with economic price adjustment contracts when acquiring commercial items, except as provided in 12.207(b).

(b) Time-and-materials contracts and labor-hour contracts are not fixed-price contracts.