In Latvian traffic rules (CSN), what is the statutory minimum tyre tread depth for winter tyres in Latvia?

Answer and explanation

Correct answer: C. 4.0 millimetres during the mandatory winter period

  1. Step 1: Under Latvian Road Traffic Regulations (CSN), Winter tyres must maintain at least 4.0 mm tread depth between 1 December and 1 March. Answer: 4.0 millimetres during the mandatory winter period. Why not the others: 3.0 millimetres on driven wheels does not represent the statutory Latvian traffic standard.

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