Resources Resources such as documents, research, data, and other tools related to the activities of the California Air Resources Board are available from this page. Use the following general categories or the search tool below. Resource DirectoriesExecutive OrdersPermits, Certifications, Verifications, and RegistrationsFormsDatabase ApplicationsResearchA-Z indexVapor Recovery Keywords Airborne ToxicsAir PollutionBiking & WalkingCars & TrucksClean CarsClimate ChangeCommunitiesConstruction & Earthmoving EquipmentConsumer ProductsEnforcement(-)EnforcementEnvironmental JusticeEnvironmental JusticeFreight & Goods MovementHealthIndoor Air Quality & ExposureMeasuring Air QualityOceangoing Vessels & Harbor CraftOn-Road Heavy-Duty VehiclesPower EquipmentResearchSimple Solutions to Improve Air QualitySustainable CommunitiesTrains & RailyardsTransitTruck & BusVW Diesel VehiclesEmergency Backup GeneratorsHeavy-Duty Diesel Inspection & Periodic Smoke Inspection Programs(-)Supplemental Environmental Projects (SEPs)Reports 3 results found for ReportsSEP Projects Completed ReportsSEP Projects Funded in Process ReportsSEP Projects Available for Funding FeaturedTruckStop Diesel Truck InformationDriveClean Buying guide for clean and efficient vehiclesBreathe Well Air quality in your neighborhood