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Previous Employer Drug & Alcohol Testing Query Changes

January 6, 2023

On January 6, 2023, three years of violation data will be stored in the FMCSA Drug & Alcohol Clearinghouse. Therefore prospective employers will no longer have to conduct manual inquiries with a CDL driver’s past employers; the query of the Clearinghouse will satisfy that requirement and will be the sole source for drug and alcohol histories.


However, if a prospective employee was subject to drug and alcohol testing by a U.S. Dept. of Transportation mode other than FMCSA (e.g., Federal Railroad Administration, Federal Transit Administration, Federal Aviation Administration), prospective employers will still have to request drug and alcohol violation information from those DOT-regulated employers since that is not reported to the Clearinghouse. As a reminder:

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