haulrecordFMCSA data

Violation codes / 391.41A-MCPC

49 CFR 391 · Driver qualification

391.41A-MCPC

What it means

Medical (Certificate) - Operating a commercial motor vehicle without showing proof of a valid medical certification upon request, but presents proof prior to com

What the rule actually says

This violation cites 49 CFR 391.41, physical qualifications for drivers. The regulation reads:

(a)(1)(i) A person subject to this part must not operate a commercial motor vehicle unless he or she is medically certified as physically qualified to do so, and, except as provided in paragraph (a)(2) of this section, when on-duty has on his or her person the original, or a copy, of a current medical examiner's certificate that he or she is physically qualified to drive a commercial motor vehicle. NOTE: Effective December 29, 1991, and as amended on January 19, 2017, the FMCSA Administrator determined that the Licencia Federal de Conductor issued by the United Mexican States is recognized as proof of medical fit…

The section continues.

49 CFR 391.41, Physical qualifications for drivers. Read the full section on eCFR

Quoted verbatim from the Electronic Code of Federal Regulations. Nothing here is a paraphrase, and nothing here is legal advice on a citation.

Times recorded41,7859% as often as 393.9, the most cited
How common84thof the 200 most cited codes, out of 2,372 that exist
Regulation391.41Driver qualification

How often this comes up

This violation was recorded 41,785 times across the roadside inspections in the FMCSA file, making it the 84th most frequently cited code. Whether a given instance puts a vehicle or driver out of service is decided at the roadside by the inspector, not by the code itself, so the same violation can end a trip or simply be noted.

It sits under 49 CFR Part 391, which covers driver qualification. To see it in context, look up a carrier and read its inspection history: the same code appearing repeatedly is a different signal from a single occurrence.

Look up a carrier's inspection record

Other driver qualification violations

Counts are from the FMCSA Inspections and Violations file via data.transportation.gov. This describes how the violation is recorded, and is not legal advice on a citation.