July 14, 2026 - China Issues New Regulations for L2 ADAS

This is the Telemetry Transportation Daily for July 14, 2026, and I'm Sam Abuelsamid, Vice President of Market Research for Telemetry. 

It's been more than a decade since the Society of Automotive Engineers published the J3016 standard that defines six levels of driver assist and automation from zero to five. In the years since, the standard has been widely used by automakers, suppliers, and regulators to describe the new ADAS and ADS systems they are deploying. The problem with the taxonomy standard is that it has far less granularity than the spectrum of functionality appearing on vehicles. This has become particularly problematic for the increasingly common Level 2 systems. The standard defines L2 as a system capable of combined control of steering and braking but still requiring driver supervision and control. In general, this means a combination of adaptive cruise control to maintain a safe distance to the vehicle ahead and some form of lane-keeping assistance. 

The problem is that this covers everything from hands-on, eyes-on systems like Nissan ProPilot Assist to hands-off, eyes systems like GM's Super Cruise to systems that integrate navigation for point-to-point supervised assist like Tesla Full Self-Driving. The industry has taken to referring to these categories as L2, L2+, and L2++, although in China, automakers are increasing the number of + signs in their marketing despite this having no official definition. 

The Chinese Ministry of Industry and Information Technology has now issued new rules to define these systems and make them safer. Going forward, these categories are now called basic single-lane, basic multi-lane (for systems that can change lanes), and navigation-guided driver assistance. From January 1, 2027, each category will have defined performance criteria, and these systems must have driver monitoring for hands-off and eyes-off the road. If the driver's gaze leaves the road or both hands are off the wheel for five seconds, an alert must be provided, and after 10 seconds, the alert is escalated. If the driver doesn't resume control within another 10 seconds after that, the vehicle must be automatically brought to a safe stop. There are also requirements for feature lockouts for 30 minutes if the driver repeatedly gets warned or fails to respond. Similar functionality already appears in systems like Super Cruise, although Tesla's systems will require some updates. Full data logging of system use is also mandatory. 

About 70% of new vehicles in China already offer at least single lane assistance, and 30% offer navigation-guided assistance. By mid-2027, China is also expected to formalize regulations covering hands-off, eyes-off systems known as L3. 

These rules are all a good step in the right direction to help ensure these safety-critical systems actually improve safety rather than just providing convenience.

Thanks for listening.