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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
All Titles
Title 49
Chapter A
Part 40
Subpart A - Subpart A—Administrative Provisions
§ 40.1 - Who does this regulation cover?
§ 40.3 - What do the terms used in this part mean?
§ 40.5 - Who issues authoritative interpretations of this regulation?
§ 40.7 - How can you get an exemption from a requirement in this regulation?
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