Resources Resources, research, data & other tools Resource DirectoriesExecutive OrdersPermits, Certifications, Verifications, and RegistrationsFormsDatabase ApplicationsResearchA-Z indexVapor RecoveryEducational ResourcesVideos Keywords AgricultureAirborne ToxicsAir PollutionAir Quality MonitoringAir Quality PlansCalifornia is Going Zero EmissionsClimate ChangeCommunities(-)EnforcementEnvironmental JusticeFreight & Goods MovementHealthIncentivesIndoor Air Quality & ExposureIndustry & ManufacturingLawn, Garden & Landscape EquipmentResearchSustainable CommunitiesTrains & RailyardsTruck & BusZero-Emission TransportationCargo Tank Vapor Recovery(-)Enforcement of Clean Truck Check HD I/M RegulationEnforcement Policy & ReportsFuels Enforcement ProgramNaturally Occurring Asbestos(-)New Source Review Permitting ProgramsPortable Equipment Registration Program (PERP)Protect California Air Act of 2003 - Senate Bill 288Supplemental Environmental Projects (SEP)Fact Sheet(-)InformationLegal DocumentReports 6 results found for InformationHD I/M Tester Training and Examination InformationHD I/M Background and Requirements InformationPSIP Booklet (Spanish) InformationPSIP Booklet InformationPSIP Advisory 298- Smoke Testing Compliance InformationU.S. EPA’s Relaxation of Federal Air Permitting Featuredthe TruckStop Diesel truck informationDriveClean Buying guide for clean and efficient vehiclesBreathe Well Air quality in your neighborhood