FMCSR 391.45F: Medical Certificate Impairment — Driver Q&A

Direct answers about 391.45F citations: out-of-service risk, what to do next, and how serious this violation is compared to other driver fitness codes.

Severity Weight
N/A
OOS Eligible
No
BASIC Category
Driver Fitness
Code System
FMCSR
Code:
391.45F
Code System:
FMCSR
BASIC Category:
Driver Fitness
OOS Eligible:
No
Severity Weight:
N/A

Ranks #2,664 of 3,146 FMCSR codes by citation frequency • OOS rate of 0.0% is below the FMCSR-wide average of 33.3%.

Violation Description

Medical (Certificate) - Operating a commercial motor vehicle when impaired by a physical or mental injury or disease discovered after current medical certificatio

Questions & Answers

Direct answers grounded in TruckCodex inspection data

Will 391.45F put my truck out of service?

No. Across our 13 million inspection records, the 0.0% out-of-service rate for 391.45F shows that inspectors do not place trucks out of service for this violation. Compare that to the 31.4% national average OOS rate across all FMCSR codes—this citation is exceptionally unlikely to result in an immediate out-of-service order. That said, a citation still creates a record that may affect your safety profile.

What do I do right now after getting cited for 391.45F?

Immediate steps:

  1. Review the citation details. Understand exactly what injury or disease was documented and when it was discovered relative to your medical certificate renewal.
  2. Contact your carrier's safety manager. Report the citation and discuss next steps.
  3. Consult your physician. If a physical or mental condition is involved, get clarity on your medical status and whether you can legally operate.
  4. Request the inspection report. Obtain the full roadside inspection documentation to understand the inspector's findings.
  5. Consider professional review. A transportation attorney or compliance specialist can advise whether to contest through the DataQs process or accept the citation.

How serious is 391.45F compared to other medical certificate violations?

391.45F is significantly less severe than related medical certificate violations. Our records show 391.41APC (operating without a valid medical certificate in possession) carries a 97.1% out-of-service rate and 49,539 citations—vastly more common. The peer code 391.41(a) (general physical qualification) has a 16.2% OOS rate across 42,270 citations. At only 2 all-time citations nationally, 391.45F is ranked #2651 of 3,036 FMCSR codes, indicating it is extremely rare in enforcement.

Is 391.45F being cited more often lately?

No. Our inspection database shows zero citations for 391.45F in the last 12 months and zero in the last 90 days. All 2 citations on record are historical. This violation remains extremely uncommon in roadside enforcement, suggesting inspectors rarely document a post-certification impairment condition that triggers this specific code.

Can I dispute a 391.45F citation through DataQs?

Yes. FMCSA allows drivers and carriers to challenge citations through the DataQs (DataQ) process—a formal objection system for errors in roadside inspection records. For 391.45F, focus on documenting the timeline: when your medical certificate was issued, when any injury or disease was discovered, and whether you actually operated while impaired. If the citation rests on factual error (e.g., misreporting the discovery date), DataQs is the right channel. Consult a compliance professional to strengthen your case.

What carriers have been cited for 391.45F?

Our records show only two carriers cited for 391.45F: Gray Fleet Corp (USDOT 2538564) with 1 citation, and Rocket City Movers of Huntsville Inc (USDOT 3506310) with 1 citation. Given the extremely low citation volume across the industry, this violation affects virtually no carriers. If you drive for a larger carrier, the odds of seeing this citation are negligible.

Does a 391.45F citation follow the driver or the carrier?

Driver fitness violations like 391.45F are recorded against both the individual driver and the employing carrier under FMCSA's Safety Management System. The citation appears in the driver's record and may affect the carrier's Safety BASICs scores. Your next employer may see this violation in a Motor Vehicle Report (MVR) or during a compliance review, so disclosure and clarity about the circumstances are important.

Last updated: 2026-04-20T17:43:19.442Z Answers reference TruckCodex inspection data Read the full article → Fleet FAQ →

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