What is the minimum distant visual acuity required for a CMV driver without corrective lenses?

The minimum distant visual acuity required for a CMV driver without corrective lenses is 20/40. This standard is set to ensure that drivers can see well enough to operate commercial motor vehicles safely. Vision is crucial for activities such as recognizing traffic signals, reading road signs, and maintaining awareness of other vehicles and pedestrians.

A distant visual acuity of 20/40 means that the driver can see at 20 feet what a person with normal vision can see at 40 feet. This level of acuity ensures that drivers have adequate sight to respond appropriately to their surroundings.

The other options either require better vision than is mandated or exceed the necessary standards for safe driving. Therefore, 20/40 serves as the minimum benchmark that balances safety and practicality for CMV drivers.