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 Air PollutionBiking & WalkingBusiness AssistanceBusiness AssistanceCars & TrucksCars, Trucks, & MotorcyclesClean CarsClimate ChangeConsumer ProductsDiesel VehiclesElectricity(-)EnforcementEnvironmental JusticeHealthHeavy-Duty EquipmentIndoor Air Quality & ExposureMeasuring Air QualityOn-Road Heavy-Duty VehiclesResearch(-)Simple Solutions to Improve Air QualitySustainable CommunitiesTruck & Bus(-)Accessible Clean Transportation Options SB 350Advanced Clean Cars Program(-)Air Cleaners & Ozone Generating ProductsCalifornia Racing VehiclesCargo Tank Vapor RecoveryClimate Change ProgramsCommunity AirCommunity Air Protection Program Community HealthDiesel Enforcement(-)Diesel VehiclesEmergency Backup GeneratorsEnforcement Policy & ReportsEquipment and Process Precertification Program (Stationary Sources Only)ExposureIndoor Air QualityNew Source Review Permitting ProgramsOutdoor Air Quality StandardsPeople at Risk(-)Portable Equipment Registration Program (PERP)Protect California Air Act of 2003 - Senate Bill 288Public Safety Power Shutoff (PSPS) EventsSupplemental Environmental Projects (SEPs)Sustainable Communities & Climate Protection ProgramTruck and Bus Regulation Truck Loan Assistance ProgramFact SheetFormInformationNoticeResearch 9 results found for Information Portable Equipment Registration Program Five-Day Notification Fact SheetDMV Compliance Verification NoticePERP- Public Notification & Outreach FormPERP Application, Record Keeping & Reporting Forms Information Non-road Diesel Engine Certification Tier Chart FormPERP Emergency Events Fact SheetPERP FAQs ResearchResearch on Transportation Choices Fact SheetOzone Effects FeaturedTruckStop Diesel Truck InformationDriveClean Buying guide for clean and efficient vehiclesBreathe Well Air quality in your neighborhood