From Monday, December 2, 2024, at 8:00 pm to Tuesday, December 3, 2024, at 12:00 am Eastern Time, FMCSA will perform scheduled system maintenance. Users will not be able to access the Clearinghouse during this time.

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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 : November 05, 2021

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