Which regulation governs vision requirements for drivers?

The regulation that governs vision requirements for drivers is found in Title 49 of the Code of Federal Regulations, specifically CFR 391.41(b)(10). This section outlines the vision standards that commercial motor vehicle drivers must meet to ensure safety on the road. It specifies that a driver must have vision in at least one eye that meets a minimum standard and must not be color blind if the role requires the ability to distinguish between colors, which is crucial for following traffic signals and other color-coded signs.

This regulation is vital because it directly impacts the safety of the driver, other road users, and the operation of commercial vehicles. Without clear vision, a driver may not be able to react appropriately to changing road conditions or obstacles, potentially leading to accidents.

Other options relate to different aspects of the driver qualification requirements. CFR 391.43 deals with medical examinations and the process for obtaining a medical certificate, while CFR 391.45 focuses on the qualifications of drivers who are subject to other medical issues that may impair their ability to drive. CFR 391.49 addresses the requirement for drivers with certain conditions to provide additional medical documentation. However, these do not specifically outline the vision requirements for drivers as clearly as CFR 391.41(b)(10) does