What is the emission standard for cars in 2014?

[Maria]

Cars registered in 2014 may comply with either China IV or China V emission standards. More details on emission standards are as follows: I. Implementation time of China IV standard. 1. On December 21, 2010, the Ministry of Environmental Protection issued the "Reply on the Implementation Date of the Fourth Stage of National Motor Vehicle Emission Standards", which appropriately adjusted the implementation date of China IV standard. 2. According to the document, the implementation of China IV standard for compression ignition engines (i.e., diesel engines for vehicles) and vehicles was postponed for one year. Starting from January 1, 2012, new compression ignition vehicles (referring to diesel vehicles) that do not meet China IV standard requirements cannot be sold or registered; new compression ignition engines that do not meet China IV standard requirements cannot be sold or put into use. II. Implementation time of China V standard. 1. On September 17, 2013, the Ministry of Environmental Protection issued the "Limits and Measurement Methods for Emissions from Light-Duty Vehicles (China V)". 2. Beijing had resolved the supply issue of low-sulfur fuel and was ready to implement the fifth-stage emission standard for light-duty gasoline vehicles. After the release of China V standard, Beijing took the lead in implementing the China V emission standard for light-duty vehicles in September 2013. 3. Starting from April 30, 2014, light-duty spark ignition engine vehicles registered in Shanghai (including those transferred from other provinces) and heavy-duty diesel vehicles used in public transportation, sanitation, and postal services in Shanghai were required to comply with the fifth-stage national motor vehicle air pollutant emission standard. 4. After May 1, 2014, vehicles meeting the fourth-stage emission standard could no longer be sold or transferred for registration. In other words, newly purchased motor vehicles sold or first registered in Shanghai, or motor vehicles transferred from other regions to Shanghai for registration, must comply with the "China V" emission standard. If they fail to meet the standard, the municipal public security vehicle management department will not process registration or transfer procedures. III. Therefore, if a car was registered in Beijing or Shanghai in 2014, it could be either China IV or China V; in other regions, it would be China IV.