Zero tolerance for new drivers, country by country

Why stricter limits exist

New drivers have far higher crash rates than experienced ones, and alcohol makes that gap worse at lower levels. Young drivers combine inexperience with a greater tendency to take risks. Professional drivers spend long hours on the road and are often driving heavy vehicles or carrying passengers. Legislators across Europe and elsewhere have responded by lowering the limit for those groups, and in several countries removing any allowance at all.

The effect is that the limit printed in most summaries is often not the one that applies to you. If you passed your test two years ago in Germany, Italy or France, your limit is not 0.5 ‰.

The stricter limits, from the official sources

Every row below comes from the same verified data as the legal limits page, where each country has its link to the statute or authority and the date it was checked.

What zero actually means

A zero limit sounds simple, but it is worth being clear about what it covers. In Germany, § 24c of the road traffic act makes it an offence for a driver in the probationary period, or under 21, to drink alcohol while driving or to start driving while still under its influence. In Italy, article 186-bis of the highway code forbids those drivers from driving after drinking at all, with fines that apply from the first measurable trace and double after an accident.

Zero is a legal concept, not a medical one. Breath and blood instruments have a small detection threshold and the law in some countries builds a technical tolerance into enforcement. None of that is something to aim for. In practice, a zero limit means: if you drank, you do not drive until the alcohol is completely gone.

Low limits that are not zero

Several countries use a low figure rather than zero. France sets 0.2 g/l for drivers on a probationary licence, in accompanied driving and with an alcohol interlock. The Netherlands sets 0.2 ‰ for beginner drivers in their first five years (seven if they qualified before 18). Spain sets 0.3 g/l for drivers in their first two years and for heavy and passenger vehicles. Denmark introduced 0.20 ‰ for drivers in their first three years with a car licence from 1 July 2025.

A limit of 0.2 ‰ is reached by one drink for many people. A 60 kg woman who has a single 0.33 l beer reaches about 0.39 ‰ on the average model; a 75 kg man about 0.26 ‰. In practice, the low limits and the zero limits ask the same thing: do not drink and drive.

The time it takes to get back to zero

For a driver on a zero or near-zero limit, the hours that matter are the hours to zero, not the hours to under 0.5 ‰. Those are longer than people think. Two 0.5 l beers put an 80 kg man near 0.73 ‰, which takes about 4:50–7:15 to clear completely. Three glasses of wine put a 60 kg woman over 1 ‰, which takes most of a night.

The elimination calculator shows the hours to 0.00 directly. For anyone on a zero limit, that is the only line on the result worth reading.

The United States: state law

In the United States, the limit for drivers under 21 is set by each state, not by federal law, so there is no single number to print. In practice almost every state applies zero tolerance or a figure very close to it, and the drinking age is 21 anyway. Commercial drivers fall under federal regulation: an alcohol concentration of 0.04 % disqualifies a commercial licence holder, and any measured alcohol while on duty is prohibited.

Professional drivers

Italy sets zero for anyone carrying people or goods for a living. Spain sets 0.3 g/l for lorries over 3.5 tonnes, buses, school transport and dangerous goods. Many employers go further than the law and set zero for every company vehicle. If you drive for work, check your contract as well as the statute.

Whatever your limit says, the only reading that is safe for driving is 0.00.

Practical advice for new drivers

• Assume your limit is zero. In much of Europe it is, and where it is not, 0.2 is one drink.
• Make the decision before you go out: either you drive and drink nothing, or you drink and do not drive.
• Count the morning after. A late night can leave you above zero well into the next day.
• Do not rely on how you feel or on a home tester. Neither is accurate enough at the levels that decide your case.