Vehicle technology: Vehicle emissions rules – Oregon RegSenseState InfoFleet SafetyOregonMobile Emission SourcesBest ResultsAir ProgramsEnvironmentalAir QualityVehicle TechnologyVehicle TechnologyFocus AreaEnglishTransportation
Oregon has adopted heavy-duty vehicle emission regulations.CitationsOAR 340-257OAR 340-261['Vehicle Technology', 'Air Programs']['Mobile Emission Sources', 'Vehicle Technology']