In Italian traffic rules (Codice della Strada), what is the rule regarding the statutory maximum noise emission and silencer rule for motor vehicle exhausts under Art. 72?

Answer and explanation

Correct answer: D. Vehicles must be fitted with an approved silencer in good working order without unapproved modifications

  1. Step 1: Under Art. 72 and Art. 78, operating a vehicle with defective or modified exhaust silencers that produce excessive noise carries administrative fines and vehicle inspection mandates. Answer: Vehicles must be fitted with an approved silencer in good working order without unapproved modifications. Why not the others: the other options do not conform to Italian traffic regulations under the Codice della Strada.

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