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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Sep 16, 2025
All Titles
Title 49
Chapter VI
Part 655
Subpart A - Subpart A—General
§ 655.1 - Purpose.
§ 655.2 - Overview.
§ 655.3 - Applicability.
§ 655.4 - Definitions.
§ 655.5 - Stand-down waivers for drug testing.
§ 655.6 - Preemption of state and local laws.
§ 655.7 - Starting date for testing programs.
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