The Clearinghouse Online Query Tool (COQT)

The Clearinghouse Online Query Tool (COQT) is an online platform that provides access to data and information related to drug and alcohol violations for commercial driver’s license (CDL) and commercial learner’s permit (CLP) holders in the United States. It is operated by the Federal Motor Carrier Safety Administration (FMCSA), a division of the U.S. Department of Transportation.

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