Why do drivers have to inspect their vehicles? Question Why do drivers have to inspect their vehicles? Answers It is usually a company policy. It is usually a local ordinance. It is a federal and state law. It adds to the amount of time for which they will be paid. Explanation Federal and state laws require drivers to inspect their vehicles before driving to ensure that they are safe to operate. This questions appears in the following tests: Massachusetts Class B Knowledge Test Minnesota Class B Knowledge Test North Dakota Class B Knowledge Test South Carolina Passenger Wyoming Tank