What is required for commercial cargo vehicles or trucks when operating in potentially hazardous conditions?

For commercial cargo vehicles or trucks operating in potentially hazardous conditions, using a backup alarm at all times is essential. This requirement is in place to enhance safety by alerting personnel and bystanders when a vehicle is reversing, thereby reducing the risk of accidents. Backup alarms provide an audible warning that can help prevent collisions and injuries, especially in environments where visibility may be impaired or where there are numerous employees and equipment in close proximity.

The importance of maintaining this safety measure in potentially hazardous conditions cannot be overstated, as it helps to mitigate risks and ensures a safer work environment. Additionally, while some other options suggest limited use of backup alarms based on time of day or location, not all situations can guarantee adequate visibility or safety, making the constant use of alarms a more prudent choice for all scenarios involving commercial cargo vehicles.