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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
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Title 42
Chapter IV
Part 421
Subpart A - Subpart A—Scope, Definitions, and General Provisions
§ 421.1 - Basis, applicability, and scope.
§ 421.3 - Definitions.
§ 421.5 - General provisions.
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