CFR›Title 23›Chapter I›Part 635›Subpart E ContainsSections 635.501–635.507CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 Subpart E—Construction Manager/General Contractor (CM/GC) Contracting Sections 635.501 § 635.501 Purpose. 635.502 § 635.502 Definitions. 635.503 § 635.503 Applicability. 635.504 § 635.504 CM/GC Requirements. 635.505 § 635.505 Relationship to the NEPA process. 635.506 § 635.506 Project approvals and authorizations. 635.507 § 635.507 Cost eligibility. Source81 FR 86943, Dec. 2, 2016, unless otherwise noted. Previous D Subpart D—General Material Requirements Next F Subpart F—Indefinite Delivery/Indefinite Quantity (ID/IQ) Contracting