What does 49 CFR 392.1 (Scope of the rules in this part) require?

Short answer

49 CFR 392.1 requires every motor carrier, its officers, agents, representatives, and employees responsible for the management, maintenance, operation, or driving of commercial motor vehicles to be instructed in and comply with the rules in this part. The rules do not apply to drivers of pipeline welding trucks as defined in 49 CFR 390.38(b).

The rule says

"Every motor carrier, its officers, agents, representatives, and employees responsible for the management, maintenance, operation, or driving of commercial motor vehicles, or the hiring, supervising, training, assigning, or dispatching of drivers, shall be instructed in and comply with the rules in this part." (49 CFR 392.1(a))

"The rules in this part do not apply to drivers of pipeline welding trucks as defined in 49 CFR 390.38(b)." (49 CFR 392.1(b))

In plain English

This rule means that anyone involved in the operation of commercial motor vehicles, from drivers to managers, must follow the safety rules outlined in this part of the regulation. However, there is an exception for pipeline welding trucks, which are not subject to these rules. In practice, this means that motor carriers must ensure their employees are trained on and comply with the safety regulations, such as those related to driving hours, vehicle maintenance, and cargo securement.

What to do

• Ensure all employees responsible for commercial motor vehicle operations are instructed on the rules in 49 CFR 392.
• Verify that employees understand and comply with the rules.
• Note the exception for pipeline welding trucks and ensure that these vehicles are not subject to the rules in this part.
• Review the definition of pipeline welding trucks in 49 CFR 390.38(b) to ensure accurate application of the exception.