Resources Resources, research, data & other tools Resource DirectoriesExecutive OrdersPermits, Certifications, Verifications, and RegistrationsFormsDatabase ApplicationsResearchVapor RecoveryEducational ResourcesVideos Keywords Climate Change(-)EnforcementFuelsAir Quality TrainingCargo Tank Vapor RecoveryCommunity Outreach and EnforcementDiesel EnforcementDiesel VehiclesEnforcement of Clean Truck Check HD I/M RegulationEnforcement Policy & Reports(-)Equipment and Process Precertification Program (Stationary Sources Only)Portable Equipment Registration Program (PERP)Truck and Bus Regulation Truck Loan Assistance Program(-)Fact SheetLinkNotice 1 results found for Fact SheetCriteria for Equipment and Process Precertification Featuredthe TruckStop Diesel truck informationDriveClean Buying guide for clean and efficient vehiclesBreathe Well Air quality in your neighborhood