§ 43657 Emissions Device Exemption Rules

• •Some cars don't need special devices to control pollution if they live in areas with clean air.
• •The state decides which areas don't need these devices after checking the air quality.
• •This rule is about keeping the air clean but not making people add extra parts to their cars if it's not needed.

You live in a small town with very clean air, and the state says your car doesn't need a special part to reduce pollution.

The state checks the air in your town and sees it's already clean, so they say your car doesn't need the extra part to control pollution.