The clearinghouse provides fmcsa and employers the necessary tools to identify drivers who are prohibited from operating a cmv based on dot drug and alcohol program violations and ensure that such drivers receive the required evaluation and treatment before operating a cmv on public roads. Learn the new fmcsa clearinghouse rules for 2026—updated penalties, violation recording changes, sap program impacts, and what cdl drivers must do now. The clearinghouse contains records of violations of drug and alcohol prohibitions in 49 cfr part 382, subpart b, including positive drug or alcohol test results and test refusals. Information maintained in the clearinghouse will enable employers to identify drivers who commit a drug or alcohol program violation while working for one employer, but fail to subsequently inform another employer.
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