InstituteMedical review officer (MRO) - Motor CarrierFleet SafetyAnalysisIn Depth Sub Topics (Level 4)Drug testing - Motor CarrierDrug and Alcohol Testing - DOTFocus AreaDesignated employer representative (DER) - Motor CarrierEnglishSplit specimen - Motor CarrierTransportationUSA
Split specimen procedures
['Drug and Alcohol Testing - DOT']
