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Height limitChina

An introduction to the traffic rules and road signs of China. Learn about driving, road safety and much more in our illustrated book, with answers to frequently asked questions.

For informational purposes only. Always follow official regulations. Some content and images were created with AI assistance.

Traffic signs
Traffic rules
China

28. Height limit

A height limit prohibits vehicles whose total height exceeds the value shown from entering or passing a road section, bridge, tunnel, gateway or other structure. The vehicle’s height includes its load and any equipment attached above it.

Drivers of high vehicles must know their exact height, observe advance warnings and use an alternative route when necessary. They should never rely only on visual judgement or attempt to pass beneath a structure when safe clearance is uncertain.

Height limit
Height limit of 4.50 metres at a bridge. (Yangzhou, China)
Wikimedia.org • 东京村子 • CC BY-SA
How should you read a low-bridge height restriction in mainland China?

Identify the actual height restriction and any separate advance-clearance warning, and read the measurement and supplementary information. Check the vehicle at its highest point with its load and fitted equipment before entering. A warning describes a hazard; a regulatory restriction controls entry. Use a permitted alternative if the vehicle cannot pass safely and lawfully.

🔗 xzfg.moj.gov.cn • Mainland China — Law Articles 35–48; Regulations 38–53 and 63, actual controls and safe movement

🔗 jtgl.beijing.gov.cn • Beijing Traffic Police — full Road Traffic Safety Law, 2021 amended text

🔗 samr.gov.cn • SAMR — full implementing Regulations, 2017 amended text

🔗 szjj.sz.gov.cn • Shenzhen Traffic Police — official sign categories and their functions

🔗 openstd.samr.gov.cn • SAMR — current GB 5768.2-2022 status, not the full standard

🔗 std.sacinfo.org.cn • SAC — published first sign-standard amendment, effective 1 January 2026

Does a roof load count when checking vehicle height in mainland China?

Yes for practical clearance: measure the vehicle at its highest point with its load and fitted accessories, such as a roof box, bicycle or roof rack. Check the local legal measurement rules as well; an empty vehicle’s registered height is not enough when equipment has been added.

🔗 xzfg.moj.gov.cn • Mainland China — Law Articles 35–48; Regulations 38–53 and 63, actual controls and safe movement

🔗 jtgl.beijing.gov.cn • Beijing Traffic Police — full Road Traffic Safety Law, 2021 amended text

🔗 samr.gov.cn • SAMR — full implementing Regulations, 2017 amended text

🔗 szjj.sz.gov.cn • Shenzhen Traffic Police — official sign categories and their functions

🔗 openstd.samr.gov.cn • SAMR — current GB 5768.2-2022 status, not the full standard

🔗 std.sacinfo.org.cn • SAC — published first sign-standard amendment, effective 1 January 2026

What should you do if your vehicle is too high for a bridge or tunnel in mainland China?

Do not try to squeeze under the structure. Use the signed alternative route and, if you are already close to the obstruction, stop where safe and seek traffic-control assistance rather than reversing unpredictably into moving traffic.

🔗 xzfg.moj.gov.cn • Mainland China — Law Articles 35–48; Regulations 38–53 and 63, actual controls and safe movement

🔗 jtgl.beijing.gov.cn • Beijing Traffic Police — full Road Traffic Safety Law, 2021 amended text

🔗 samr.gov.cn • SAMR — full implementing Regulations, 2017 amended text

🔗 szjj.sz.gov.cn • Shenzhen Traffic Police — official sign categories and their functions

🔗 openstd.samr.gov.cn • SAMR — current GB 5768.2-2022 status, not the full standard

🔗 std.sacinfo.org.cn • SAC — published first sign-standard amendment, effective 1 January 2026

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