Which federal regulation outlines the medical standards for commercial drivers?

The regulation that outlines the medical standards for commercial drivers is found in 49 CFR Part 391. This part is specifically dedicated to the qualifications of drivers, including the medical requirements that must be met by individuals operating commercial motor vehicles. It establishes the essential criteria for ensuring that drivers are physically and mentally capable of safely operating such vehicles.

Part 391 addresses various aspects of driver qualifications, including health and medical evaluations, which require drivers to undergo examinations to ensure they meet the necessary health standards. This regulation aims to ensure road safety by providing medical guidelines that help prevent individuals with certain health conditions from driving commercially.

In contrast, the other options address different areas of regulations. For example, Part 392 pertains to the general driving rules for commercial motor vehicles, including safety measures and operational requirements. Part 395 focuses on hours of service regulations for drivers, detailing how long drivers can operate their vehicles and mandatory rest periods. Part 396 outlines vehicle maintenance requirements and inspection standards. Each of these parts plays a role in ensuring safe commercial transportation, but only Part 391 specifically addresses the medical standards required for drivers.