China: Nonroad: Emissions

Overview

 * Standard type: Conventional pollutant emission limits
 * Regulating body: Ministry of Environmental Protection
 * Current standards:
 * Three-wheeled and low-speed vehicles: Stage II (GB 19756-2005)
 * Nonroad mobile machinery (diesel): Stage II (GB 20891-2007)
 * Nonroad mobile machinery (gasoline): Stage I (GB 26133-2010)
 * Future standards:
 * Nonroad mobile machinery (diesel): Stage III under development
 * Nonroad mobile machinery (gasoline): Stage II (GB 26133-2010) phased-in 2013 to 2016

History
China has established emissions standards for multiple categories of non-highway vehicles and engines. These include standards for three-wheeled and low-speed vehicles (primarily used in agricultural and rural applications) as well as nonroad mobile machinery.

Chinese emissions standards for nonroad mobile machinery are generally based on the European emission standards. However, the Chinese standards also include small diesel engines which are not included in the European standards. Emissions limits for the smallest engines are consistent with the US Tier 1/2 nonroad standards.

In June 2013, China's Ministry of Environmental Protection issued draft Stage III emission limits for nonroad diesel engines, with reference to European Stage III.

Implementation dates for Chinese nonroad emissions standards are as follows:

Three-wheeled and low-speed vehicles

Nonroad mobile machinery

Three-wheeled and low-speed vehicles
As defined in GB 19756-2005:


 * Three-wheeled vehicles: three-wheeled goods vehicles with maximum design speed less than or equal to 50 km/h.


 * Low-speed vehicles: four-wheeled goods vehicles vehicles with maximum design speed less than or equal to 70 km/h.

Nonroad mobile machinery

 * Diesel: nonroad mobile machinery with power less than or equal to 560 kW (as defined in GB 20891-2007).


 * Gasoline: nonroad mobile machinery with power less than or equal to 19kW (as defined in GB 26133-2010).

Three-wheeled and low-speed vehicles
Emission Standards for Three-wheeled and Low-speed Vehicles, g/kWh

Limit values given in GB 19756-2005.

Nonroad Diesel Engines
Emissions are measured over a steady-state test cycle that is equivalent to the ISO 8178 C1, 8-mode test. Other ISO 8178 test cycles can be used for selected applications.

Nonroad Gasoline Engines
Limit values given in GB 26133-2010.

Regulatory Documents
Three-wheeled and low-speed vehicles
 * Smoke I/II: GB 18322-2002
 * China I/II: GB 19756-2005

Non-road mobile machinery
 * Diesel I/II: GB 20891-2007
 * Diesel III: under development
 * Gasoline I/II: GB 26133-2010