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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
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Title 49
Chapter II
Part 219
Subpart D - Subpart D—Reasonable Suspicion Testing
§ 219.301 - Mandatory reasonable suspicion testing.
§ 219.303 - Reasonable suspicion observations.
§ 219.305 - Prompt specimen collection; time limitations.
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