CFR › Title 23 › Part 172Part 172 — Procurement, Management, and Administration of Engineering and Design Related Services§ 172.1— Purpose and applicability.§ 172.3— Definitions.§ 172.5— Program management and oversight.§ 172.7— Procurement methods and procedures.§ 172.9— Contracts and administration.§ 172.11— Allowable costs and oversight.