L2 and NOA Penetration Soars, Reshaping the Car Market
At the 2026 World Intelligent Connected Vehicles Conference, China's Ministry of Industry and Information Technology (MIIT) released a key data point: the domestic penetration rate of L2-level combined driving assistance functions in passenger cars has reached 70.5% this year. Meanwhile, the penetration rate for Navigate on Autopilot (NOA) functions has hit 34.2%. These figures indicate that advanced driver assistance systems (ADAS) have shifted from a rare option on high-end vehicles to a standard feature on most new cars. The 70.5% adoption rate was unthinkable just a few years ago.
Early ADAS systems were mostly found on vehicles costing over 300,000 yuan, offering basic functions like adaptive cruise control and lane keeping. As sensor costs have fallen and algorithms have evolved, more 100,000 to 150,000 yuan class vehicles now come equipped with these features, driving the rapid growth in penetration. Today, for many consumers, the availability of ADAS is a critical factor in their purchasing decisions. The 34.2% penetration rate for NOA shows that high-level ADAS is also moving downmarket quickly. Compared to basic L2 functions, NOA can handle more complex operations like automatic ramp entry and exit, lane changes, and navigation-based driving, which demand higher algorithm and computing power. Previously a feature for top-tier trims, NOA is now widely available on mid-range models, with one in three new cars sold featuring the technology—a pace that has surprised many industry experts.
L3 Autonomous Driving Progresses with Pilot Programs
Alongside the rise in penetration, more advanced autonomous driving is making tangible progress. The MIIT confirmed that the first batch of L3-level conditionally autonomous driving vehicles has begun legal operations in designated areas. Two mass-production models, the BAIC Arcfox Alpha S and Changan Deepal SL03, have received market access permits. They are undergoing trials on specific road sections in Beijing and Chongqing, respectively. The key difference between L3 and L2 is not just the number of features, but the shift in responsibility. Under L2, the driver remains the primary responsible party, required to monitor the road and be ready to take control at all times. In contrast, L3 allows the driver to temporarily disengage from driving and monitoring in specific scenarios, with the vehicle handling the driving tasks. In the event of an accident, the liability falls on the automaker, which is why L3 deployment is far more cautious than L2, involving complex legal, insurance, and regulatory issues.
Currently, the scope of L3 application is limited. The BAIC Arcfox Alpha S's L3 functions are mainly usable on designated high-speed sections in Beijing, such as the Jingtai Expressway and Daxing Airport Expressway, with a maximum speed limit of 80 km/h. The Changan Deepal SL03 operates on Chongqing's inner ring expressway and main city roads, primarily targeting low-speed, stop-and-go traffic scenarios. If the vehicle exits the designated pilot area, the system automatically downgrades to L2, prompting the driver to take over. Pilot vehicles use special license plates with a "Z" identifier at the end, allowing for easy traffic management. In December 2025, the first official L3 license plate in the country was issued in Chongqing for the Changan Deepal SL03, marking half a year of on-road data collection.
New National Standards Usher in a Period of Regulation
While L3 trials proceed steadily, the broader L2 ADAS market is also undergoing standardization. On June 27, 2026, the mandatory national standard for "Safety Requirements for Combined Driving Assistance Systems of Intelligent Connected Vehicles" was officially released, set to take effect on January 1, 2027. This is China's first mandatory national standard specifically for L2-level combined driving assistance systems. Previously, the industry relied on corporate self-regulation and voluntary standards, which had a lower barrier. The new standard categorizes ADAS systems into three types: basic single-lane, basic multi-lane, and navigation-based combined driving assistance. It sets clear requirements for functional safety, human-machine interaction, data recording, and testing verification. The standard also prohibits the use of vague marketing terms like "L2.5" or "L2.9" to prevent misleading consumers. In the past, automakers created various terms between L2 and L3 for marketing, causing confusion, which the new standard aims to correct. In late July, Geely and BYD announced they were the first to pass the standard's safety management system certification. Geely received the first certificate (No. 001) on July 20, while BYD obtained its certification on July 28. Both companies participated in drafting the standard, allowing for a faster certification process. As the 2027 implementation date approaches, more automakers are expected to complete certification and vehicle adaptation.
Standardization extends beyond the official standard. Newly registered vehicle models are no longer allowed to install external blue smart driving indicator lights, a move to prevent interference with other road users. This detail reflects a shift in regulatory thinking—from encouraging innovation to balancing development with regulation. The parallel trends of rapidly rising penetration, making ADAS a standard feature, and the gradual improvement of standards, ending the industry's wild growth phase, are the most defining characteristics of China's intelligent driving sector today. With 70.5% of new cars featuring ADAS and L3 operating legally in designated areas, the importance of safety and regulation will only grow. The coming years will be a critical period for intelligent driving to transition from widespread adoption to true maturity.
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