What Is a DOT Drug & Alcohol Testing Policy?
A DOT drug and alcohol testing policy is a written document every employer of CDL drivers must create and give to each driver — explaining who's covered, what's prohibited, when testing happens, and the consequences (49 CFR 382.601). It's a required document, separate from running the tests themselves.
What must the policy include?
Under 49 CFR 382.601, the written policy must spell out:
- Who is subject to testing.
- The prohibited conduct (and what counts as a refusal).
- The circumstances under which a driver is tested — pre-employment, random, post-accident, reasonable suspicion, return-to-duty, and follow-up.
- The consequences of a positive result or refusal.
- Information about the return-to-duty process and the Substance Abuse Professional.
Who needs one, and when?
Every employer of CDL drivers, from the start of the program. Each driver must receive a copy and sign for it — and that signed receipt is exactly what a DOT audit asks to see.
Why it's an easy audit finding
Operators focus on the testing itself and forget the paperwork around it. A missing written policy or missing signed receipts is a common, avoidable violation — the program can be running perfectly and still fail on the document.
Common questions
What is a DOT drug and alcohol testing policy?
It's a written document every employer of CDL drivers must create and give to each driver, explaining the testing program — who is covered, what conduct is prohibited, when testing happens, and the consequences of a violation. It's required by 49 CFR 382.601, separate from actually running the tests.
What must the testing policy include?
Under 49 CFR 382.601, it must identify who is subject to testing, the prohibited conduct, the circumstances under which a driver will be tested, the procedures used, the consequences of a positive or refusal, and information about the return-to-duty process and the Substance Abuse Professional.
Who needs a testing policy, and when?
Every employer of CDL drivers, from day one of the program. Each driver must receive a copy and sign for it, and that signed receipt is part of what a DOT audit checks — so it's an easy finding if it's missing.
Keep reading
Track every registration and renewal
VettyFleet tracks every license, filing, registration, medical card, and DOT test your fleet answers to — federal, state, and city — warns you before anything expires, and prints audit packets on demand.
General information, not legal advice — verify against current federal (FMCSA/DOT) regulations and your state and local rules, or counsel, before relying on it. Fees are set annually; confirm current amounts with the agency.