This legislation, known as the Commercial Motor Vehicle English Proficiency Act, aims to enhance safety by modifying testing requirements for commercial motor vehicle operators. It mandates that, two years after its enactment, individuals seeking to pass a knowledge test or obtain a fitness certification must demonstrate proficiency in the English language . This includes the ability to comprehend basic operational information and communicate effectively while operating a commercial motor vehicle. Specifically, operators must be able to read and understand English traffic signs, communicate with various law enforcement and border personnel, and provide or receive directions in English. Furthermore, the bill explicitly prohibits the administration of commercial motor vehicle knowledge tests in any language other than English . The Secretary of Transportation is directed to update relevant regulations within two years to ensure these new English proficiency standards are fully implemented.