Commercial cargo vehicles must utilize _____ at all times.

Commercial cargo vehicles must utilize backup alarms at all times to ensure safety during operation, especially in environments where visibility is limited or where pedestrians and other vehicles may be present. Backup alarms serve as an auditory warning to those in the vicinity that the vehicle is in reverse, which helps to prevent accidents and injuries. This is particularly crucial in construction and industrial areas, where heavy equipment is constantly in use and the potential for harm is elevated. The use of backup alarms is mandated by safety regulations to enhance awareness and reduce the likelihood of collisions.