From 7:30 p.m. Eastern Time on Friday, April 16, 2021 to 7:30 a.m. Eastern Time on Monday, April 19, 2021, TENNESSEE commercial driver’s licenses (CDLs) may not be verified in the Clearinghouse, due to scheduled system maintenance with the Tennessee Commercial Driver License Information System (CDLIS).
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Yes, all Mexican or Canadian employers, employees, or service agents operating in the United States that are subject to the Federal Motor Carrier Safety Administration (FMCSA) drug and alcohol testing requirements must comply with the Clearinghouse final rule.

Last Updated : March 20, 2020

Only Canadian and Mexican employers operating in the United States that are subject to the Federal Motor Carrier Safety Administration (FMCSA) drug and alcohol testing requirements must report drug and alcohol program violations to the Clearinghouse.

Last Updated : July 22, 2019