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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 28, 2025
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Title 50
Chapter I
Part 19
Subpart A - Subpart A—Introduction
§ 19.1 - Purpose of regulations.
§ 19.2 - Scope of regulations.
§ 19.3 - Relation to other laws.
§ 19.4 - Definitions.
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