Correct answer
On the driven wheels, without excluding others required by instructions or conditions.
The driven wheels, following manufacturer instructions and applicable travel conditions. Do not decide merely from front or rear axle labels: identify which transmits engine power. Other wheels may also need equipment; for example, exceptional bus authorisation under red-level snow conditions requires chains on the steering axle and at least one driven axle. Chains do not guarantee freedom from skidding or permit ignoring restrictions.
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On the driven wheels, without excluding others required by instructions or conditions.
Only on one side’s wheels, regardless of which wheels are driven.
Only on wheels that do not receive engine power.
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