49 CFR §§391.41 – 391.49

49 CFR 391.41: Lists the physical and mental qualification standards. Drivers must not have certain limb losses, unmanaged diabetes, major heart disease, dangerous respiratory issues, high blood pressure, epilepsy, or poor vision/hearing.

49 CFR 391.43: Details how a certified medical examiner must perform the physical exam and issue the Medical Examiner’s Certificate.

49 CFR 391.44: Explains alternative vision standards for drivers who do not meet standard distant acuity or field of vision in one eye.

49 CFR 391.45: Specifies which commercial drivers are required to undergo regular medical examinations.

49 CFR 391.46: Outlines the physical qualification rules for drivers with insulin-treated diabetes mellitus.

49 CFR 391.47: Provides a process to resolve conflicts when a medical evaluation disagrees with a treating clinician’s report.

49 CFR 391.49: Explains the Skill Performance Evaluation (SPE) certificate program for drivers with missing or impaired limbs.