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 AgricultureAirborne ToxicsAir PollutionAir Quality PlansBiking & WalkingCars & TrucksCars, Trucks, & MotorcyclesClean CarsClimate ChangeCommunitiesConsumer ProductsDiesel VehiclesElectricityEnforcementEnvironmental JusticeFreight & Goods MovementFuelsHealthHeavy-Duty Equipment(-)Heavy-Duty VehiclesIncentivesIndoor Air Quality & ExposureMeasuring Air QualityOn-Road Heavy-Duty VehiclesResearchSimple Solutions to Improve Air QualitySustainable CommunitiesTransitTruck & BusLow Carbon Transportation Investments and Air Quality Improvement ProgramLower-Emission School Bus ProgramSchool Buses(-)Truck and Bus Regulation Fact Sheet 1 results found for Fact SheetTruck and Bus Regulation School Bus Provisions FeaturedTruckStop Diesel Truck InformationDriveClean Buying guide for clean and efficient vehiclesBreathe Well Air quality in your neighborhood