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 ToxicsAirborne ToxicsAir PollutionCars & TrucksClean CarsClimateClimate ChangeElectricityEnforcement(-)Freight & Goods MovementIndustry & ManufacturingOn-Road Heavy-Duty VehiclesResearchTruck & BusAlternative Diesel FuelsCargo Handling EquipmentCarl Moyer Memorial Air Quality Standards Attainment ProgramClimate Change ProgramsCommercial Harbor Craft Community Air Protection Program Community HealthExposureIn-Use Off-Road Diesel-Fueled Fleets RegulationMinimizing Community Health Impacts from FreightReducing Rail Emissions in CaliforniaResearch PlanningSchool BusesStudy of Neighborhood Air near Petroleum SourcesSustainable Communities & Climate Protection Program(-)Vehicle Emissions Research ProgramZero-Emission Powertrain CertificationResearch 1 results found for ResearchMeasuring Real-World Heavy-Duty Truck Emissions FeaturedTruckStop Diesel Truck InformationDriveClean Buying guide for clean and efficient vehiclesBreathe Well Air quality in your neighborhood