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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
All Titles
Title 45
Chapter A
Part 172
Subpart A - Subpart A—General Provisions
§ 172.100 - Basis, purpose, and scope.
§ 172.101 - Applicability.
§ 172.102 - Definitions.
§ 172.103 - Responsibilities ASTP/ONC may delegate to the RCE.
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