48 CFR 37.601: 37.601 General.

(a) Solicitations may use either a performance work statement or a statement of objectives (see 37.602).

(b) Performance-based contracts for services shall include—

(1) A performance work statement (PWS);

(2) Measurable performance standards (i.e., in terms of quality, timeliness, quantity, etc.) and the method of assessing contractor performance against performance standards; and

(3) Performance incentives where appropriate. When used, the performance incentives shall correspond to the performance standards set forth in the contract (see 16.402-2).