Question Federal and state laws require: Answers Drivers to regularly inspect their vehicles. Drivers to inspect their vehicles, but only if they believe there may be a problem. Drivers to inspect their vehicles if planning to travel out-of-state. Drivers to inspect their vehicles, but only if they will be transporting hazardous materials. Explanation Commercial drivers are required by federal and state laws to inspect their vehicles before every trip. Regular inspections can help drivers identify issues before they become dangerous and costly. Take a FREE Practice Test Now This questions appears in the following tests: Colorado Knowledge Test Class A , New Hampshire Knowledge Test Class A , Texas Knowledge Test Class A , District Of Columbia Knowledge Test Class B , North Dakota Knowledge Test Class B ,