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When Did the National IV Emission Standard Start to Be Implemented?

1Answers
JosiahLynn
07/24/2025, 06:37:41 AM

The National IV Emission Standard was implemented on July 1, 2013. Here is some information about the National IV Emission Standard: 1. The National IV Emission Standard is the fourth stage of national standards for motor vehicle pollutant emissions. 2. The main pollutants emitted by vehicles include HC (hydrocarbons), NOx (nitrogen oxides), CO (carbon monoxide), PM (particulate matter), etc. 3. The standard aims to control and reduce vehicle emissions to below specified limits. Additional information: 1. On July 1, 2004, the National II Emission Standard was implemented nationwide. 2. On July 1, 2007, the National III Emission Standard was implemented nationwide. 3. On July 1, 2013, the National IV Emission Standard was implemented nationwide.

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