48 C.F.R. § 536.7105-7 – Early work packages.

(a) Construction services for an early work package must be within the scope of the overall contract.
(b) Early work packages may be part of the initial procurement as a separately priced line item, or the Government and the construction contractor may agree to develop an early work package after award, typically identified toward the beginning of the project.
(c) Early Work Packages Developed After Award.
1. (1) The parties shall bilaterally agree to the scope, schedule, and pricing for any such early work package, and the contract shall be modified in accordance with FAR Part 43.
2. (2) If any such early work package reduces the scope of the construction services under the GMP option, the ECW shall be reduced, and the CCA, fee for the construction work, and GMP shall be adjusted accordingly.
3. (3) Any modification to the contract for an early work package is subject to the requirement for a prenegotiation objectives memo and price negotiation memo, including fair and reasonable price determination, per FAR 15.406.
(d) Early work packages that are firm-fixed-price are not subject to open book accounting, a shared savings incentive, or the need for determination of final settlement.