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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 I
Part 199 - PART 199—DRUG AND ALCOHOL TESTING
Subpart A [§ 199.1 - § 199.9] - Subpart A—General
Subpart B [§ 199.100 - § 199.119] - Subpart B—Drug Testing
Subpart C [§ 199.200 - § 199.245] - Subpart C—Alcohol Misuse Prevention Program
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