The EU requires manufacturers to equip cars with an interface for breathalyzers

Starting in July 2026, all new cars sold in the EU must have a built-in interface for connecting an ignition interlock device. Find out how this system works, what other safety standards have become mandatory, and how this will affect drivers

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Starting in July 2026, all vehicles sold in the European Union must have a standard pre-installed interface for connecting an ignition interlock device to the ignition system. This was reported by Wired.

This requirement is part of a broader EU strategy to reduce deaths and injuries related to drunk driving by at least 50% by 2030. The long-term goal is even more ambitious — as part of the “Vision Zero” program, the European Union aims to completely eliminate alcohol-related fatal road accidents by 2050.

Read also: The EU is introducing a new rule for drivers — from now on, a camera will be watching you.

What exactly are automakers required to do?

According to the EU General Safety Regulation, automakers are required to:

● provide an electrical connection for integrating an alcohol interlock device;

● reserve physical space inside the vehicle for its installation;

● comply with the requirements of the European standard EN 50436 for such devices;

● use equipment certified by an authorized accreditation body.

Important: The new requirement concerns the presence of an interface, not the mandatory installation of the breathalyzer itself in every vehicle. In other words, the vehicle comes equipped with a ready-to-use connector to which a device can be connected at any time — for example, by court order or at the employer’s request.

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How does an ignition interlock work?

Before starting the car, the driver must blow into a device that measures the alcohol level in their breath. If the result exceeds the permissible limit, the system automatically blocks the ignition and prevents the car from starting.

This technology is already in use in several EU countries, mostly as part of programs for repeat offenders or in the commercial transport sector. According to official data, its widespread implementation could reduce the number of alcohol-related fatal accidents by up to 65%.

If you plan to travel to the EU in your own car — remember to bring other required documents as well. In particular, the Green Card is a mandatory requirement for entry into most European countries. You can conveniently apply for it online via the Visit Ukraine platform.

What else has become mandatory for new cars in the EU?

The alcohol interlock is just the latest in a series of measures the EU has been consistently implementing since 2018. Here’s what is already mandatory or has recently become so:

● Intelligent Speed Assistance (ISA): the system recognizes the speed limit using cameras or GPS and alerts the driver if it is exceeded.

● Lane Keeping Assist: automatically corrects the trajectory if the car drifts out of its lane without a turn signal.

● Event Data Recorder (“black box”): records key parameters in the seconds leading up to a crash — for subsequent investigations.

● Adaptive Brake Light: automatically activates the taillights in a flashing mode during sudden braking to warn drivers behind.

Starting July 1, no new car can be sold through a dealership in the EU without full compliance with all these requirements.

We remind you! New safety rules for cars will take effect in the EU starting July 2026. Read how adaptive brake lights will work, who the changes affect, and what Ukrainian drivers need to know.

Photo: Freepik

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