Which Cities Have Implemented China 6 Emission Standards?

2 Answers
VanCameron
07/24/25 6:15pm
The provinces and cities implementing China 6 standards include Hebei, Henan, Hainan, Chongqing, Anhui, Shaanxi, Sichuan, Chengdu, Hangzhou, Nanjing, Shandong, and Shaanxi—totaling 12 regions. China 6 is divided into two phases: China 6a and China 6b. China 6a serves as a transitional stage from China 5, with emission standards further enhanced based on China 5. China 6b represents the true China 6 standard, the most stringent emission standard to date, imposing stricter requirements and limitations than Euro 6 in many aspects. The China 6 standard is formulated based on international benchmarks and is currently one of the strictest emission standards globally. It meets the current EU fuel quality standards for vehicles, with some indicators even surpassing EU requirements. The official implementation date for China 6a is set for July 1, 2020, while China 6b is scheduled for July 1, 2023.
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CarsonAnn
08/11/25 10:09am
The China VI emission standards are actually implemented in several phases, and most cities across the country have had different timelines for quite some time. Starting as early as July 1, 2019, megacities like Beijing, Shanghai, Tianjin, Guangzhou, and Shenzhen took the lead in enforcing the China VI-b phase. Later, entire provinces such as Jiangsu, Zhejiang, and Guangdong followed suit, along with cities in the Chengdu-Chongqing economic zone, including Chengdu and Chongqing. However, it's important to note that some regions initially adopted the China VI-a phase before upgrading to China VI-b. Nowadays, virtually all major cities you can name have fully implemented the China VI standards, and car salespeople will proactively inform you about this when purchasing a new vehicle. For the exact implementation date in a specific city, it's best to check the latest announcements from the local environmental protection department for accuracy.
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