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Drug and Alcohol Clearinghouse (DACH)
Beginning November 18, 2024, commercial driving privileges will be removed from the driver license of any individual prohibited from operating a commercial motor vehicle (CMV) by the Federal Motor Carrier Safety Administration's (FMCSA) Commercial Driver’s License Drug and Alcohol Clearinghouse (DACH). This is a secure online database that gives State Driver Licensing Agencies, State law enforcement, FMCSA, and employers of CDL drivers real-time information about commercial driver drug and alcohol program violations such as positive drug tests, tests with a blood alcohol concentration of 0.04 or greater, and refusals to test.
Numerous studies have shown that driving under the influence of alcohol and/or drugs is dangerous for everyone on the road. Due to their size and weight, crashes that involve CMVs have increased risk of injuries and fatalities. Impaired driving of CMVs can be a deadly combination.
DACH improves safety by helping employers, states, and enforcement personnel to determine which drivers to remove from operating a CMV due to actions that violate federal drug and alcohol testing regulations. FMCSA believes DACH increases safety by allowing employers, state agencies, and law enforcement to identify drivers who attempt to conceal alcohol and drug violations that prohibit them from operating CMVs. DACH further ensures that, before returning to operating CMVs on public roads, those with drug and alcohol program violations complete the regulatory requirement for evaluation and treatment, often referred to as the return to duty (RTD) process.
Beginning November 18, 2024, the Wyoming Department of Transportation's Driver Services program must query DACH before issuing, renewing, transferring, or upgrading a CDL or CLP; and must review a driver's information when notified by DACH of a status change.
Once a driver is prohibited from driving a CMV due to alcohol or drug violations, they must complete the return to duty (RTD) process established by 49 CFR part 40, subpart O.
For CDL or CLP holders wanting more information about the Drug and Alcohol Clearinghouse (DACH), visit their page on the FMCSA website.
For general questions regarding DACH, visit this page on the FMCSA website.
For questions regarding the return to duty (RTD) process, visit this page on the FMCSA website.
