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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Sep 16, 2025
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Title 49
Chapter VI
Part 655
Subpart F - Subpart F—Drug and Alcohol Testing Procedures
§ 655.51 - Compliance with testing procedures requirements.
§ 655.52 - Substance abuse professional (SAP).
§ 655.53 - Supervisor acting as collection site personnel.
§§ 655.54-655.60 - §[Reserved]
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