How to Determine a Vehicle's Emission Standard?

[DelGianna]

Methods to determine a vehicle's emission standard include: 1. The vehicle's environmental protection compliance label; 2. The page in the vehicle certification where the label begins; 3. Estimating the emission standard based on the vehicle's manufacturing year; 4. Using the original or a copy of the motor vehicle registration certificate to inquire at the local vehicle management office. Vehicle emission standards are categorized into: 1. Vehicles with a total mass less than or equal to 3.5 tons equipped with spark-ignition or compression-ignition engines; 2. Vehicles with a total mass greater than 3.5 tons equipped with spark-ignition engines; 3. Vehicles with a total mass greater than 3.5 tons equipped with compression-ignition engines. Emission standards refer to the levels of harmful gases such as carbon monoxide, hydrocarbons, nitrogen oxides, particulates, and soot emitted from vehicle exhaust. Vehicle emission standards are established to prevent pollution from exhaust emissions of compression-ignition and gas-fueled spark-ignition engine vehicles, protect the ecological environment, and safeguard human health.