This legislation primarily aims to enhance the safety and standardization of commercial driver's license issuance. A key provision mandates that all tests related to obtaining or renewing a commercial driver's license (CDL) must be administered exclusively in English. This requirement applies to entry-level driver training programs, knowledge tests, and examinations conducted by third-party training providers. Furthermore, the bill introduces a new prerequisite for CDL applicants, stipulating that an individual must have held a standard driver's license for a minimum of one year prior to being issued a CDL. This provision seeks to ensure applicants have foundational driving experience before operating commercial vehicles, though existing CDL holders are exempt. The Secretary of Transportation is granted the authority to revoke a state's ability to issue non-domiciled CDLs or Commercial Learner's Permits (CLPs) if that state fails to comply with these new federal standards and regulations, which the Secretary is directed to implement through rulemaking within 180 days.