How to Determine the National Emission Standard of a Truck?
2 Answers
Truck owners can check the environmental compliance label on the vehicle to identify its emission standard, thereby determining which national standard it meets. Below is relevant information about emission standards: 1. Introduction: Vehicle emission standards are established to control pollutant emissions from automobiles. To curb the generation of these harmful gases and encourage manufacturers to improve their products in reducing emission sources, both Europe and the United States have formulated relevant automotive emission standards. These standards are continuously supplemented, refined, and tightened in response to the increasing number of vehicles and the worsening of environmental conditions. 2. Emissions: Automotive emissions refer to harmful gases discharged from exhaust, including carbon monoxide, hydrocarbons, nitrogen oxides, particulates, soot, etc. These are all harmful byproducts generated during the engine's combustion process.
To determine the emission standard of a truck (National III, IV, etc.), the simplest method is to check the environmental information on the vehicle registration certificate. On page 4, there's an 'Emission Standard' section that clearly states whether it's National III or V. If the document isn't handy, take a photo of the VIN (the 17-digit code at the lower left of the windshield) and scan it using apps like 'Che 300'. Alternatively, checking the manufacturing year is reliable: most vehicles produced around 2006 are National III, those around 2011 are National IV, and post-2017 are mostly National VI. It's best to refer to the vehicle conformity certificate. Another lesser-known method is to check the last letter of the engine model—E4 indicates National IV, and E5 means National V. Veteran drivers warn not to rely solely on the colored emission stickers, as they've long been discontinued.
