U.S. Code of Federal Regulations
Regulations most recently checked for updates: Sep 16, 2025
An covered employer shall conduct follow-up testing of each employee who returns to duty, as specified in 49 CFR Part 40, subpart O.
Regulations most recently checked for updates: Sep 16, 2025
An covered employer shall conduct follow-up testing of each employee who returns to duty, as specified in 49 CFR Part 40, subpart O.