Resources Resources, research, data & other tools Resource DirectoriesExecutive OrdersPermits, Certifications, Verifications, and RegistrationsFormsDatabase ApplicationsResearchA-Z indexVapor RecoveryEducational ResourcesVideos Keywords TopicAir Cleaners & Ozone Generating ProductsAir Toxics ProgramCalifornia Greenhouse Gas Emission Inventory ProgramCalifornia State Implementation PlansCargo Tank Vapor RecoveryCommunity Air Protection Program Community HealthCommunity SolutionsConsumer Products ProgramEnforcement of Clean Truck Check HD I/M RegulationEnforcement Policy & ReportsExposureFuels Enforcement ProgramIndoor AirMobile Source Emissions InventoryNatural and Working Lands Naturally Occurring AsbestosNew Source Review Permitting ProgramsOutdoor Air Quality StandardsPeople at RiskPortable Equipment Registration Program (PERP)Portable Fuel Containers - Gas CansProtect California Air Act of 2003 - Senate Bill 288Research PlanningResidential Woodsmoke ReductionSupplemental Environmental Projects (SEP)Sustainable Communities & Climate Protection ProgramFact Sheet No results found. Featuredthe TruckStop Diesel truck informationDriveClean Buying guide for clean and efficient vehiclesBreathe Well Air quality in your neighborhood