Subpart A—General RegSensePipeline and Hazardous Materials Safety Administration (PHMSA), DOTTransportationHazmat SafetyHazmatHazmat markings, Placards, and LabelsEnglishHazmat LabelsHazmat: AirHazmat markingsCFR SubpartCFR RegulationsHazmat PlacardingHazmat: WaterFocus AreaUSA
§172.1 Purpose and scope.§172.3 Applicability.['Hazmat: Water', 'Hazmat', 'Hazmat: Air', 'Hazmat markings, Placards, and Labels']['Hazmat markings', 'Hazmat Labels', 'Hazmat Placarding']