What is the hearing standard required for a CMV driver without using a hearing aid?

The hearing standard required for a commercial motor vehicle (CMV) driver is the ability to hear a forced whisper at a distance of 5 feet without the use of a hearing aid. This standard is established to ensure that drivers can adequately perceive important auditory signals, such as horns and sirens, which are critical for safety on the road. The forced whisper test evaluates the driver's functional hearing ability in a practical setting where they need to be aware of their surroundings while driving.

Meeting this standard is vital as it directly relates to the driver's capacity to respond to potential hazards, communicate effectively, and maintain overall situational awareness. Hearing loss can significantly impact a driver's performance and the safety of themselves and others on the road, making this standard an essential requirement in the certification process for CMV drivers.