CFR›Title 45›Subtitle A›Part 172›Subpart A ContainsSections 172.100–172.103CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart A—General Provisions Sections 172.100 § 172.100 Basis, purpose, and scope. 172.101 § 172.101 Applicability. 172.102 § 172.102 Definitions. 172.103 § 172.103 Responsibilities ASTP/ONC may delegate to the RCE. Next B Subpart B—Qualifications for Designation