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China Issues GB 47955-2026, a Mandatory National Safety Standard for Combined Driving-Assistance Systems
China has released GB 47955-2026, a mandatory national standard setting safety requirements for combined driving-assistance systems in intelligent connected vehicles. It takes effect January 1, 2027. It governs assisted driving, not full self-driving, and a separate mandatory standard for higher-level automated driving is still in draft.
China has put a mandatory floor under the assisted-driving features that ship in its cars. The standard, GB 47955-2026, "Safety Requirements for Combined Driving Assistance Systems of Intelligent Connected Vehicles," was approved by the State Administration for Market Regulation and the national Standardization Administration, with the technical work organized by the Ministry of Industry and Information Technology. State media reported the release at the start of July 2026. It takes effect on January 1, 2027.
The GB prefix matters. In China's system, a GB standard is mandatory and a GB/T standard is recommended. This one is GB, so it is compulsory. For the systems it covers, meeting it becomes a condition of being allowed on the market, not a best-practice suggestion a maker can weigh against cost.
What the standard actually covers
The rule is about combined driving assistance, the category most drivers know by brand names like adaptive cruise, lane centering, and navigation-guided highway driving. In the official summary, the standard "sets safety requirements for three types of combined driver assistance systems: basic single-lane systems, basic multi-lane systems and navigation-assisted driving systems." That is the ceiling of its scope. It stops below full automation.
Within those three tiers, the standard sets a baseline for how the systems have to behave and how the company behind them has to account for their behavior. The official summary states that it "specifies baseline requirements covering functions, data recording, vehicle manufacturer safety guarantees, human-machine interaction, user instructions and user training." In plain terms, the system has to do certain things reliably, the car has to record what happened, the maker carries responsibility for safety, and the driver has to be told plainly what the system can and cannot do.
The driver-monitoring piece is central. Because these are assistance systems, a human is still in charge, and the standard is built around keeping that human engaged. Reported requirements include continuous detection of whether the driver's hands and eyes are where they should be once the system is active, with graded warnings and time limits before the system escalates. The point is to close the gap between what marketing implies and what the technology is actually rated to do.
Mandatory, but not yet in force
Two things are true at once here, and both matter for planning. The standard is mandatory, and it is not yet effective. It was released in July 2026 and takes effect on January 1, 2027, which leaves roughly a half-year transition before the requirement bites. New models coming through type approval are the first to face the full requirement, and there is a phase-in window for models already approved so that existing vehicles are not stranded overnight.
So nothing is illegal today because of this standard. What changed is certainty. The direction, the specifics, and the date are now fixed, which means the compliance work has a hard deadline instead of an open question.
What this is not
I want to be precise, because the easy headline is that China just regulated self-driving cars, and that is not what happened. GB 47955-2026 governs driver assistance, the level where a person remains responsible for the vehicle. It does not clear, restrict, or set the rules for Level 3 or Level 4 automated driving, where the system takes over the driving task.
Those higher levels are being handled separately. MIIT has a distinct mandatory national standard for automated driving system safety that is still in the draft stage, aimed at Level 3 and Level 4 systems and reported to be targeted for a later effective date. Treat that as a related but separate track. Anyone reading GB 47955-2026 as permission or prohibition for full self-driving is reading the wrong document.
Why US automakers and AI developers should care
China is the largest auto market in the world, and assisted-driving features are a selling point there, not an afterthought. US automakers selling into China, whether directly or through joint ventures, and the AI and ADAS suppliers that build the perception and control stacks, now have a fixed technical bar to clear for anything with combined driving-assistance features.
The parts that travel across the org chart are the ones that touch engineering and legal at the same time. Data recording means your systems have to capture and retain what the assistance features did, which is an evidence trail regulators, courts, and investigators can pull. Manufacturer safety responsibility means the accountability sits with the company, not the driver, for whether the system meets the standard. Human-machine interaction and user-training requirements mean the way a feature is described and handed to the driver is now part of the compliance surface, not just the marketing surface. For any US developer whose model or software rides inside a car sold in China, those requirements flow down to you through your customer's contracts.
None of this binds a vehicle sold only in the US. US assisted-driving rules run on their own track. But GB 47955-2026 is a clear read on where a major market is drawing the line, and the pattern, keep a human accountable, record what the system did, and put responsibility on the maker, is the same direction regulators elsewhere have been signaling.
What to do now
Read the scope before you react. This is an assisted-driving standard with a January 1, 2027 effective date, not a self-driving rule and not something in force today. Map which of your features fall inside the three tiers it covers, and confirm whether your product is sold or licensed into China at all. If it is, put the effective date on the compliance calendar and work backward from type-approval timelines rather than the headline date. Check that your data-recording and driver-monitoring capabilities meet the baseline, and that your user instructions and in-car messaging match what the system is actually rated to do. And watch the separate Level 3 and Level 4 draft standard, because that is the track that will decide the rules for the features people actually mean when they say self-driving.
Questions professionals are asking
Is GB 47955-2026 mandatory or just recommended?
Mandatory. It carries the GB prefix, which in China's system means a compulsory national standard, as opposed to the recommended GB/T type. For the systems it covers, meeting it becomes a condition of market access rather than optional guidance.
Does this standard regulate full self-driving cars?
No. It covers combined driving-assistance systems up to navigation-assisted driving, where a human driver is still responsible. Level 3 and Level 4 automated driving, where the system takes over the driving task, are the subject of a separate mandatory national standard that is still in draft.
When does it take effect?
January 1, 2027. It was released in July 2026, so there is a transition period. New models going through type approval face the requirement first, with a phase-in window for models already approved. Nothing is required today because of this standard.
Does it apply to US automakers?
It applies to intelligent connected vehicles with combined driver-assistance features sold in China, which includes US brands and their joint ventures. It does not apply to vehicles sold only in the US. AI and ADAS suppliers whose software rides inside China-sold cars inherit the requirements through their customers.
What does the standard actually require?
Per the official summary, it sets safety requirements for three tiers of combined driver-assistance systems and specifies baseline requirements covering functions, data recording, vehicle manufacturer safety guarantees, human-machine interaction, user instructions, and user training. Reported details include continuous hands-off and eyes-off driver monitoring with graded warnings.
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Informational analysis for working professionals, not legal or regulatory advice. Confirm how any standard or requirement applies to your situation with qualified professionals in the relevant jurisdiction.