Which tires are considered winter in Belarus From December 1st to March 1st, winter tires must be on all vehicle wheels. One axle has the same tread pattern. This requirement does not apply to trucks over 3.5 tons and buses over 5 tons. Only tires that have at the same time: "Mountain with three peaks and a snowflake inside" sign One of the M+S, M&S or MS signs Residual tread depth is at least 4 mm. Traffic VK Instagram TikTok.