ClearinghouseServices.com is a private company not affiliated with the United States Department of Transportation (DOT) or the Federal Motor Carrie Safety Administration (FMCSA). It is our goal to assist employers, CDL drivers and Service Agents with their responsibilities mandated by the FMCSA Clearinghouse rule also known as the Commercial Driver’s License Drug and Alcohol Clearinghouse – 49 CFR Part 382, Subpart G