Subpart B—Employer responsibilities
RegSenseMedical review officer (MRO) - Motor CarrierPrevious employer alcohol and drug test information - Motor CarrierDrug and Alcohol Testing - DOTDrug testing - Motor CarrierOffice of the Secretary of TransportationEnglishFleet SafetyCFR SubpartCFR RegulationsBreath alcohol technician - Motor CarrierConsortium: third-party administrator (TPA) - Motor CarrierDesignated employer representative (DER) - Motor CarrierSubstance abuse professional (SAP) - Motor CarrierFocus AreaAlcohol testing - Motor CarrierDilute specimen - motor carrerTransportationUSA