# China Opens Consultation on Revised Vehicle Lighting Standard, Blue-Green Self-Driving Marker Light Restricted to L3 and Above

China's Ministry of Industry and Information Technology has opened public consultation on a revision to the installation requirements for exterior lighting and light-signaling devices on vehicles and trailers\. The draft permits an optional autonomous-driving marker light in a dedicated blue-green color only for L3 and above autonomous vehicles, with the new standard planned to take effect on January 1, 2028\.

By China EV Signal
Published: 2026-10-28T15:41:08.180Z
Updated: 2026-10-28T15:41:08.182Z
Canonical article: https://chinaevsignal.com/news/china-vehicle-lighting-standard-consultation-autonomous-driving-marker-light

## Key takeaways

- The Ministry of Industry and Information Technology has opened public consultation on a revision to the standard for installing exterior lighting and light-signaling devices on vehicles and trailers, planned to take effect on January 1, 2028\.
- The draft allows only L3 \(conditionally automated\) and higher autonomous vehicles to optionally fit an autonomous-driving marker light, and does not permit L2 assisted-driving vehicles to install or use it\.
- The standard designates blue-green as the marker light's exclusive color, requires the light to switch on and off automatically with the driving system, and bars manual control\.

## Consultation on revised lighting standard

The Ministry of Industry and Information Technology has opened public consultation and formally begun revising the standard for the installation of exterior lighting and light-signaling devices on vehicles and trailers\. The new standard is planned to take effect on January 1, 2028\.

Before this revision, China had not established unified technical rules for autonomous-driving marker lights, according to the report\.

## Marker light limited to L3 and above

The draft allows only L3, or conditionally automated, and higher autonomous vehicles to optionally fit an autonomous-driving marker light, often called the "little blue light\." Most vehicles on the market are L2 assisted-driving cars, which the standard explicitly does not permit to install or use the marker light\.

Any vehicle that fits the marker light must meet all technical clauses of the standard\.

## Blue-green color and automatic control

The standard selects blue-green as the exclusive color for the autonomous-driving marker light\. It sets requirements for the light's luminous intensity, emission angle and installation position, and regulates brightness through defined chromaticity coordinate boundaries\.

The light must be bound to the driving system: it switches on automatically when the relevant driving function is activated and switches off automatically when the system exits, with manual switching on or off prohibited\.

The draft also does not allow vehicles to display text, emoji or similar content through exterior lights while driving\.

## Company coverage

- [Changan news](https://chinaevsignal.com/manufacturers/changan)

## Original publisher

工信微报. Published: 2026-10-28T04:02:38.000Z