Winter equipment is mandatory on Slovenian roads from November 15 to March 15 every year, regardless of the weather. The exception are roads within the coastal belt from Kozina to Sečovlje.
Winter equipment consists of winter tyres with a tread depth of at least 3mm or summer tyres with a 3mm tread depth and snow chains on drive wheels.
Mandatory winter equipment in the neighbouring countries:
Croatia: From November 15 to April 15: winter tyres with a tread depth of at least 4mm or summer tires of the 4mm tread depth and snow chains on the drive wheels are mandatory in the most of the northern roads and highways.
Austria: From November 1 to April 15: winter tyres with a tread depth of at least 4mm or summer tyres with 4mm tread depth and snow chains on drive wheels. In high elevation areas snow chains are mandatory for winter tyres as well. In case of slush or partially snowy roads the use of snow chains is not allowed.
Italy: Every region’s got its own regulations: In Friuli Venezia Giulia winter equipment is mandatory from November 15, in Veneto from November 1, while in Trentino it is only mandatory in case of snowy weather.
Hungary: No dates are specified by the law. In case of heavy snowfall road signs can be placed demanding the use of mandatory snow chains on drive wheels.