To be physically qualified, a driver must have at least a __________ degree field of vision.

To be physically qualified, a driver must have at least a 70-degree field of vision. This requirement is essential because a wide field of vision allows drivers to be more aware of their surroundings, including other vehicles, pedestrians, and obstacles, which is critical for safe driving, especially in large commercial vehicles. A 70-degree field of vision ensures that drivers can effectively monitor the road conditions and make quick decisions when necessary, reducing the risk of accidents. This standard is part of the physical qualifications outlined to ensure that all drivers are capable of maintaining safety on the roads.