What is the primary document that every driver must be knowledgeable about according to DOT regulations?

The primary document that every driver must be knowledgeable about according to DOT regulations is the Federal Motor Carrier Safety Regulations. This set of regulations provides comprehensive guidelines aimed at ensuring safe and responsible operation of commercial vehicles on public roads. It covers various crucial aspects, including driver qualifications, hours of service, vehicle standards, and maintenance requirements.

Understanding these regulations is essential for drivers not only to comply with the law but also to promote safety on the roads. They serve as a foundation for responsible driving practices and help to minimize accidents, ensuring that both the driver and the public are protected. The knowledge of the Federal Motor Carrier Safety Regulations is imperative for any driver operating commercially, making it the correct answer to the question.

Other documents, while important in specific contexts, do not carry the same overarching importance as the Federal Motor Carrier Safety Regulations in terms of regulatory compliance.