1. Engine Modifications: Manufacturers may modify the design and engineering of their engines to reduce emissions. This may include optimizing combustion efficiency, improving fuel injection, and reducing friction.
2. Emission Controls: Installing emission control systems, such as catalytic converters, is another effective method. Catalytic converters convert harmful pollutants like hydrocarbons and carbon monoxide into less harmful substances such as carbon dioxide and water vapor.
3. Reformulated Fuels: Using specially formulated fuels with reduced evaporative emissions can also contribute to CARB compliance. These fuels often have lower levels of volatile organic compounds (VOCs) and aromatic hydrocarbons.
4. Idle Control Systems: Incorporating idle control systems that automatically shut off the engine when it's not in use can significantly reduce emissions.
5. Electric and Battery-powered Lawn Mowers: Manufacturers have developed electric and battery-powered lawn mowers that eliminate exhaust emissions altogether. These types of mowers are becoming increasingly popular as a more environmentally-friendly alternative.
6. CARB-approved Small Off-Road Engines (SORE): Manufacturers may obtain CARB approval for their small off-road engines by meeting specific emission standards and requirements set by the board.
7. Tiered Emissions Standards: CARB implements tiered emission standards that become increasingly stringent over time. Manufacturers must meet the applicable tier of emission standards based on the engine's size and type.
8. Continuous Improvement: Ongoing research and development efforts by manufacturers help improve engine technology, leading to further reductions in emissions.
By implementing these strategies and adhering to CARB regulations, lawn mower engine manufacturers can produce products that meet the stringent emission standards set by the state of California and contribute to cleaner air quality.
