As of June 22, 2026Chapter III, Subchapter B — Federal Motor Carrier Safety Regulations
Part 391 Qualifications of Drivers and Longer Combination Vehicle (LCV) Driver Instructors
31 sections · What changed since this date
Subpart A—General
Subpart B—Qualification and Disqualification of Drivers
Subpart C—Background and Character
Subpart D—Tests
Subpart E—Physical Qualifications and Examinations
- § 391.41Physical qualifications for drivers.18 versions
- § 391.43Medical examination; certificate of physical examination.20 versions
- § 391.44Physical qualification standards for an individual who does not satisfy, with the worse eye, either the distant visual acuity standard with corrective lenses or the field of vision standard, or both.2 versions
- § 391.45Persons who must be medically examined and certified.11 versions
- § 391.46Physical qualification standards for an individual with diabetes mellitus treated with insulin for control.4 versions
- § 391.47Resolution of conflicts of medical evaluation.8 versions
- § 391.49Alternative physical qualification standards for the loss or impairment of limbs.10 versions
Subpart F—Files and Records
Subpart G—Limited Exemptions
- § 391.61Drivers who were regularly employed before January 1, 1971.3 versions
- § 391.62Limited exemptions for intracity zone drivers.2 versions
- § 391.63Multiple-employer drivers.5 versions
- § 391.64[Reserved]12 versions
- § 391.65Drivers furnished by other motor carriers.5 versions
- § 391.67Farm vehicle drivers of articulated commercial motor vehicles.4 versions
- § 391.68Private motor carrier of passengers (nonbusiness).4 versions
- § 391.69Private motor carrier of passengers (business).2 versions
- § 391.71[Reserved]2 versions