DOT medical card and drug testing: how they fit together

A DOT medical card proves a driver is medically fit to drive — it says nothing about drug testing, which the employer runs separately.

Two documents. Two owners. One driver who can't legally work without both.

Here's how they connect, including the piece that changed in June 2025 and still catches carriers out.

What the medical card actually is

The medical card is the Medical Examiner's Certificate, Form MCSA-5876, issued under 49 CFR 391.43(h) by an examiner on FMCSA's National Registry.

It's good for 24 months at the outside. 49 CFR 391.45(b) says a driver who hasn't been examined and found medically qualified in the preceding 24 months has to be examined again — a ceiling, not a promise. Shorter cycles apply: 12 months for insulin-treated diabetes under 391.46 and for certain vision cases under 391.44 (391.45(e) and (f)). A driver whose ability to work has been impaired by injury or disease goes back early, whatever the card says (391.45(g)).

What changed on June 23, 2025

If your mental picture of this is a driver handing a paper card to the DMV, update it.

Since June 23, 2025, a driver who needs a CDL or CLP no longer has to carry the medical examiner's certificate on their person (49 CFR 391.41(a)(2)(i)(B)). Medical examiners send exam results to FMCSA electronically — by midnight of the day after the exam, under 49 CFR 391.43(g)(5)(i)(B) — and the medical status flows through to the state.

Three consequences worth writing down:

• Paper certificates now go to drivers who aren't operating a CMV that requires a CDL or CLP (391.43(g)(2)(ii)).
• If an examiner finds a driver not physically qualified, that goes to FMCSA — and every certificate previously issued to that driver stops being valid (391.43(g)(3)).
• When the electronic record and a paper copy disagree, the electronic record controls (391.41(a)(2)(iv)).

For CDL holders, the carrier's proof of medical qualification is the CDLIS motor vehicle record obtained from the licensing state and placed in the driver qualification file (49 CFR 391.51(b)(6)(ii)). Not a photocopy in a drawer.

Drug testing lives in a completely different file

Drug and alcohol records don't belong in the driver qualification file at all. 49 CFR 382.401(a) requires employers to keep them "in a secure location with controlled access", and verified positives and refusals have to be retained for at least five years (382.401(b)(1)).

The duties sit in Part 382. Before a driver performs a safety-sensitive function for the first time they have to be tested, and you can't put them to work until a verified negative arrives from the MRO or your C/TPA (49 CFR 382.301(a)). After that: random, post-accident, reasonable suspicion, return-to-duty and follow-up.

A current medical card covers none of that, and a clean drug test doesn't extend a medical card. The two systems don't talk to each other — which is how carriers end up holding one and missing the other.

The practical version for a Utah carrier

New driver starting Monday? Two things need to be moving, and only one is yours to run.

The physical is the driver's appointment with a medical examiner on the FMCSA National Registry — find one on FMCSA's National Registry search. The pre-employment drug test is yours, and the verified negative has to land before the first dispatch, not after it.

That second one is ours. BBB Mobile DOT Drug Testing brings the collection to your yard, job site or office across Park City, Summit and Wasatch County and the Salt Lake metro. About 15 minutes on site, lab results back in 24 to 72 hours. DOT-qualified, FMCSA-compliant, AABB-accredited, HIPAA-compliant, an NDASA member, and a woman-owned small business (SBA WOSB/EDWOSB).

We don't perform DOT physicals and we don't issue medical cards.

Start here: pre-employment DOT drug testing. Or browse all services, check pricing, size a job in the estimator, or get in touch.

Quick answers

Do they drug test for a DOT medical card?

No. The medical examination includes a urinalysis for protein, blood and sugar — a health screen. The DOT drug test is a separate collection your employer orders under Part 40 and Part 382. More in does a DOT physical include a drug test.

How long does a DOT medical card last?

Up to 24 months (49 CFR 391.45(b)). Certain conditions put a driver on a 12-month cycle, and an examiner can issue a card for less than the maximum.

Does a non-CDL driver still get a paper medical card?

Yes. Since June 23, 2025, the paper certificate is furnished to drivers who aren't operating a CMV that requires a CDL or CLP (49 CFR 391.43(g)(2)(ii)).

Does a failed drug test cancel a medical card?

They're separate decisions made by separate people. A verified positive removes the driver from safety-sensitive functions under 49 CFR 382.501. The medical certificate is decided by the examiner against the standards in 391.41(b), which include a drug-use standard at 391.41(b)(12).

Still untangling the two? Start with the side-by-side: DOT physical vs DOT drug test.