Starting from July 7, 2026, new vehicles registered in the European Union will enter a stricter phase of the General Safety Regulation. The most notable innovation is the advanced driver distraction warning system, known as ADDW, a technology designed to detect when the driver stops paying visual attention to driving for too long.
This change is significant because driving assistance is no longer focused solely on the exterior environment. Until now, many ADAS systems have been associated with parking sensors, rear cameras, automatic braking, lane keeping, signal recognition, or cruise control. With ADDW, the vehicle also observes what happens inside the cabin, especially the driver’s gaze and head position. European standards require these systems for categories M and N vehicles from July 7, 2024, for new type approvals, and from July 7, 2026, for all new vehicles.
Brussels aims to reduce accidents caused by distraction, one of the hardest factors to measure after an incident. The European Commission links these systems to its goal of approaching zero road fatalities by 2050 and has already argued in 2024 that the new mandatory assistive technologies could help prevent over 25,000 deaths and at least 140,000 serious injuries by 2038.
What exactly does the ADDW system do?
ADDW must determine when the driver’s visual attention is not directed towards the driving task and alert them through the vehicle’s interface. The regulation does not specify a particular technology, but practically, the most likely solution will be an interior camera, often infrared, capable of functioning day and night, and analyzing gaze direction, eyes, or head orientation.
Thresholds are defined quite precisely. At speeds of 50 km/h or more, the system must issue a warning when the gaze remains in a distraction zone for a maximum of 3.5 seconds under nominal conditions. At speeds of 20 km/h or more, the limit extends to 6 seconds. In non-nominal situations, the regulation allows for these times to be extended by an additional 1.5 seconds to account for technical or environmental limitations.
The system activates automatically above 20 km/h, although manufacturers can choose to activate it at lower speeds. Additionally, the regulation permits up to one minute of cumulative driving above 20 km/h for the system to begin monitoring the driver’s state and calibrate itself. It must also be possible for the driver to manually disable alerts or the system itself, depending on the manufacturer’s implementation, though it resets with each new start or main activation of the vehicle.
The alert should be both visual and acoustic or haptic. In practice, this could mean a warning light on the dashboard, a message, a beep, a steering wheel vibration, or a combination of signals. The warning can increase in intensity until the triggering behavior ceases.
Road safety versus surveillance perception
The safety argument is straightforward. Looking at your phone, manipulating a central screen, searching for an object, checking the navigation system, or diverting attention to interact with vehicle controls can take several seconds. At 120 km/h, three seconds equal roughly 100 meters traveled almost blindly.
The controversy begins when this logic is applied inside the vehicle. European standards aim to limit privacy risks: ADDW must operate without relying on personal biometric data that could uniquely identify occupants. The regulation clarifies that this does not prohibit the use of data from in-vehicle cameras but explicitly prevents systems from identifying individuals through biometric recognition. Furthermore, only the necessary data to operate the system must be continuously recorded and retained within a closed system, and any handling of personal data must comply with European data protection regulations.
That nuance is important but does not eliminate the debate. One thing is that safety functions should not identify the driver, and another is that modern cars are increasingly becoming technological platforms full of sensors, software, telemetry, and connected services. Many vehicles already gather data related to usage, diagnostics, location, connectivity, maintenance, infotainment, or driving habits. Adding interior cameras amplifies the perception that the car is observing more and more.
The challenge will not only be technical but also trust-based. Manufacturers will need to explain what data is processed locally, what is stored, what is discarded, what is transmitted, who can access it, and for how long. Regulations set boundaries, but societal acceptance depends on system design and whether users perceive the vehicle as helpful or as surveillance.
The black box is not a camera recording the entire trip
The debate over ADDW is often conflated with another mandatory safety system: the event data recorder, known as EDR or “black box.” It’s helpful to distinguish them.
The EDR is not a dashcam or a continuous recording camera. Its purpose is to store technical parameters related to an accident, such as speed, braking, steering, activation of safety systems, or seatbelt and airbag status, at relevant moments before, during, and after a collision. The obligation for passenger cars and light commercial vehicles was integrated into European safety regulations and has been phased in since 2022 for new types and since 2024 for new vehicles in these categories.
The difference with ADDW is clear: the black box records event data for accident reconstruction; ADDW monitors visual attention to warn drivers before distraction leads to risk. Both are part of the same regulatory direction: more assisted, measurable, and connected safety systems.
The vehicle as a regulated computer
The latest phase of the General Safety Regulation consolidates a transformation that was already underway. Vehicles are increasingly resembling rolling computers heavily reliant on sensors, cameras, software, updates, detection models, interfaces, and data.
This offers obvious advantages. Assistance systems can prevent collisions, reduce pedestrian and cyclist injuries, alert drivers, correct human errors, and enhance overall safety. The European Commission has already indicated that new vehicles should integrate features like intelligent speed assistance, parking sensors and cameras, drowsiness warnings, emergency brake signals, lane keeping, automatic braking, and event data recorders in both cars and vans.
But it also introduces costs and new questions. More sensors mean more components, software, homologation, and maintenance. If an interior camera fails, gets dirty, becomes obscured, or cannot detect enough features, the system must alert to its limitations or failure. Regulations include warnings for permanent or temporary faults and require that the operational status of ADDW can be verified during technical inspections when appropriate.
For drivers, the change will be more about routine adjustments than dramatic shifts. They won’t see the car take control for looking away briefly, but they will receive alerts if they are distracted excessively. For manufacturers, the shift is deeper: they need to design systems that work reliably in real-world conditions, minimize false positives, avoid dependence on biometric identification, and pass specific homologation tests.
Safety versus privacy is a false dilemma
Framing this debate as a choice between safety and privacy oversimplifies the issue. The real question is how these functions are designed to enhance safety without transforming the cabin into a space of opaque surveillance.
Road safety justifies many assistive technologies. A warning that prevents someone from driving hundreds of meters without looking at the road can save lives. But trust erodes quickly if users do not understand what the system does with a camera pointed at them.
Europe attempts to close that gap by requiring data minimization, the absence of biometric identification, and operation limited strictly to what is necessary for the function. Still, pressure on manufacturers and regulators will increase as connected vehicles gain more observation capabilities.
The future car will need to be not only safe but also explainable. In the case of interior cameras, that explanation must be very clear.
Frequently Asked Questions
When does the ADDW system become mandatory on new cars?
From July 7, 2026, for all new vehicles in the affected categories registered in the EU. For already type-approved new models, it has been required since July 2024.
Does the regulation require installing an interior camera?
It does not specify a particular technology, but the most common way to comply will be through an interior camera capable of detecting gaze direction or head position.
Can the vehicle identify the driver via facial recognition?
ADDW must operate without relying on biometric data that could uniquely identify occupants. It can use camera data to assess attention but not to recognize or identify individuals.
When does the system warn about distraction?
At speeds of 50 km/h or more, if gaze remains in a distraction zone for up to 3.5 seconds. At speeds of 20 km/h or more, the general threshold is 6 seconds.
Does the car’s black box record video?
No. The EDR records technical parameters related to an accident, such as speed, braking, or safety system activation. It does not function as a continuous dashcam recording everything inside or outside the vehicle.
