49 CFR 391.41 Physical qualifications for drivers describes the
medical fitness for duty qualification standards that an individual must meet in
order to be qualified to operate an interstate commercial motor vehicle (CMV).
1. FMCSA Web site home page
You can access 391.41 by going to the FMCSA Web site, entering "391.41"
in the "RULES & REGULATIONS" text box, and selecting "Go."
2. FMCSA Medical Programs page link to physical qualification
From the same area of the Web site, you can also access 391.41 by selecting the
"Medical Program" link and then the "Physical Qualifications"
The driver medical qualification standards describe requirements that are critical
to evaluation of medical fitness for duty in commercial drivers. Your knowledge
of the physical and mental demands of commercial driving and your medical judgment
determine whether a particular condition interferes with driver ability of the person
to operate a CMV safely.