Resources Resources, research, data & other tools Resource DirectoriesExecutive OrdersPermits, Certifications, Verifications, and RegistrationsFormsDatabase ApplicationsResearchVapor RecoveryEducational ResourcesVideos Keywords Climate Change(-)Construction & Earthmoving EquipmentFreight & Goods MovementLawn, Garden & Landscape Equipment(-)Research(-)Truck & BusAdvanced Clean Cars ProgramAir Pollution ComplaintsCalifornia Climate InvestmentsCarl Moyer Memorial Air Quality Standards Attainment ProgramChildren's HealthCommunity AirCommunity Air Protection Program Community HealthCommunity SolutionsComposite Wood Products Airborne Toxic Control MeasureExposure(-)In-Use Off-Road Diesel-Fueled Fleets RegulationIncident Air MonitoringLarge Spark-Ignition (LSI) Engine Fleet Requirements RegulationLower-Emission School Bus Program(-)Mobile Source Emissions Research ProgramPeople at RiskResearch PlanningSchool BusesStatewide Greenhouse Gas Monitoring NetworkSustainable Communities & Climate Protection ProgramVolatile Organic Compounds (VOCs) and FormaldehydeFact SheetInformation(-)Link(-)Research 9 results found for ResearchOff-Road Mobile Source Research LinkLabel Vendors for Off-Road Diesel Vehicles and Large Spark-Ignited (LSI) Equipment LinkOff-Road Diesel Reporting Forms and Enforcement Advisories LinkVerified Retrofits for In-Use Off-Road Diesel Vehicles LinkOff-Road Fleet Average Calculators LinkIn-Use Off-Road Diesel-Fueled Fleets Regulation Language ResearchNOx Emissions of In-Use Trucks ResearchMeasuring Real-World Heavy-Duty Truck Emissions ResearchResearch Synthesis #17-01 "How California is Giving Soot the Boot!" Featuredthe TruckStop Diesel truck informationDriveClean Buying guide for clean and efficient vehiclesBreathe Well Air quality in your neighborhood