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 PollutionAir Quality PlansBiking & WalkingBusiness AssistanceCars & TrucksCars, Trucks, & MotorcyclesClean CarsClimateClimate ChangeCommunitiesConsumer ProductsConsumer ProductsDiesel VehiclesEnforcementEnvironmental JusticeHealthHeavy-Duty EquipmentHeavy-Duty VehiclesIndoor Air Quality & Exposure(-)Industry & ManufacturingMeasuring Air QualityOn-Road Heavy-Duty VehiclesResearchSimple Solutions to Improve Air QualitySustainable CommunitiesTruck & BusCalifornia Climate InvestmentsClimate Change ProgramsOil and Natural Gas Production, Processing, and Storage Semiconductor(-)Stationary Hydrofluorocarbon Reduction MeasuresFact SheetNotice 3 results found for NoticeTechnical Working Group: August 2019 Fact SheetHydrofluorocarbon (HFC) Prohibitions in California NoticeHFC Reduction Measures Workshop - October 24, 2018 FeaturedTruckStop Diesel Truck InformationDriveClean Buying guide for clean and efficient vehiclesBreathe Well Air quality in your neighborhood