Heavy-Duty Inspection and Maintenance Program Back To All Programs Heavy-Duty Inspection and Maintenance ProgramAboutNewsResources HD I/M Fact SheetsHD I/M Tester Training Course and ExamCredentialed HD I/M Tester Public ListOBD Test DevicesSmoke Opacity Manufacturers with SAE J1667-Compatible MetersVehicle Emissions Control Equipment Inspection FormMeetings & Workshops Primary Contact Heavy-Duty Inspection and Maintenance Program Email hdim@arb.ca.gov Categories Topics Air Pollution, Enforcement Resources Information Technical Analysis of End of Useful Life Scenarios - South Coast Information Technical Analysis of End of Useful Life Scenarios - Statewide
