Subpart Q—Roles and responsibilities of service agents
RegSenseMedical review officer (MRO) - Motor CarrierDrug testing - Motor CarrierDrug and Alcohol Testing - DOTOffice of the Secretary of TransportationEnglishFleet SafetyCFR SubpartCFR RegulationsBreath alcohol technician - Motor CarrierConsortium: third-party administrator (TPA) - Motor CarrierFocus AreaSubstance abuse professional (SAP) - Motor CarrierAlcohol testing - Motor CarrierTransportationUSA