Winter Tyres in Bulgaria

Proper winter tires are an essential part of a vehicle's mandatory equipment during cold weather conditions. Alarmingly, many drivers underestimate their importance, despite the fact that they significantly impact not only the vehicle's performance in winter but also the safety of all road users.

At SpeedyCars.eu, we are committed to raising awareness about the right time to switch from summer to winter tires. We also aim to clarify certain misconceptions about legal regulations concerning this matter.

Are Winter Tires Legally Required?

The attempt to introduce a strict law mandating winter tires has been ongoing for several years without success. The only significant legal requirement in this regard is outlined in the Road Traffic Act.

According to Article 139, Paragraph 1, Clause 4, all vehicles operating on public roads between November 15 and March 1 must be equipped with:

• tires specifically designed for winter conditions; or
• tires with a tread depth of at least 4 mm.

Failure to comply with these requirements during a roadside inspection can result in a fine. If you're unsure whether your tires meet the minimum tread depth, you can check using a tread depth gauge or a simple 1 lev coin—if the outer rim of the coin disappears into the tread, the depth is sufficient.

In practice, this means you may use all-season tires or even summer tires, as long as they meet the 4 mm tread depth requirement. However, experts strongly caution that this is not the safest choice.

Expert Recommendations for Winter Tire Use

Legally, using winter tires is not strictly required—as long as your tires meet the depth criteria. However, industry professionals strongly advocate for their use.

Numerous tests have demonstrated that using winter tires is crucial for optimal road safety. Choosing not to install winter tires when temperatures drop can compromise vehicle performance and lead to dangerous consequences.

Experts recommend that as soon as temperatures consistently fall below 7°C, you should switch to winter tires, even if the law does not mandate it. Winter tires perform significantly better than summer or all-season tires under these conditions, providing superior traction and stability.

It is advisable to start monitoring weather conditions as early as the beginning of November.