The Clearinghouse is required for all Commercial Driver’s License (CDL) drivers operating Commercial Motor Vehicles (CMVs) on public roads, as well as for their employers and service agents. Examples include but aren’t limited to:
• Interstate and intrastate motor carriers, including passenger carriers
• School bus drivers
• Construction equipment operators
• Limousine drivers
• Municipal vehicle drivers (e.g., waste management vehicles)
• Federal and other organizations that employ drivers subject to FMCSA drug and alcohol testing regulations (e.g., Department of Defense, municipalities, school districts)
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