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DOT 49 CFR Part 40
The federal drug and alcohol testing rules for safety-sensitive transportation employees.
Definition
49 CFR Part 40 is the U.S. Department of Transportation's procedural rulebook for drug and alcohol testing of safety-sensitive transportation workers. It governs specimen collection, lab analysis, MRO review, and the FMCSA Drug & Alcohol Clearinghouse query that is mandatory for CDL drivers pre-employment and annually thereafter.
Related terms
- Continuous Monitoring — Ongoing post-hire re-screening with alerts on new records.
Need help applying this?
SafestHires builds these rules into the screening workflow so adjudicators do not have to remember them. See the compliance hub for the relevant statute set, or contact us to talk through a program.