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Resources, research, data & other tools
- Air Quality Training
- California Climate Investments
- California Racing Vehicles
- Cargo Tank Vapor Recovery
- Carl Moyer Program: School Bus
- Clean Off-Road Equipment Vouchers
- Community Air Protection Incentives
- Community Outreach and Enforcement
- (-)Diesel Enforcement
- Diesel Vehicles
- (-)Emergency Backup Generators
- (-)Enforcement of Clean Truck Check HD I/M Regulation
- Enforcement Policy & Reports
- Equipment and Process Precertification Program (Stationary Sources Only)
- (-)In-Use Off-Road Diesel-Fueled Fleets Regulation
- (-)Large Spark-Ignition (LSI) Engine Fleet Requirements Regulation
- Low Carbon Transportation Incentives and Air Quality Improvement Program
- Lower-Emission School Bus Program
- Oil and Natural Gas Production, Processing, and Storage
- Portable Equipment Registration Program (PERP)
- (-)Public Safety Power Shutoff (PSPS) Events
- Rural School Bus Pilot Project
- School Buses
- Semiconductor
- Stationary Hydrofluorocarbon Reduction Measures
- Supplemental Environmental Projects (SEP)
- Truck and Bus Regulation
- Truck Loan Assistance Program
- Zero-Emission Landscaping Equipment
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Diesel truck information
Buying guide for clean and efficient vehicles
Air quality in your neighborhood