Government proposes mandatory sound alert system for all electric vehicles by 2027 The system has been proposed as a safety feature in Electric Vehicles (EVs), designed to emit an artificial sound that alerts pedestrians and other road users to the vehicle's presence. New Delhi:The Ministry of Road Transport and Highways (MoRTH) has proposed making the Acoustic Vehicle Alerting System (AVAS) mandatory for all electric cars, buses, and trucks to enhance road safety. AVAS is a safety feature in Electric Vehicles (EVs) that emits an artificial sound to alert pedestrians and other road users to the vehicle's presence. Vehicle categories coveredThe mandate applies to the following categories of electrified vehicles:Category M: Includes electric cars and buses designed primarily for passenger transport. The use of AVAS is already mandatory in hybrid vehicles in several nations, including the US, Japan, and some European Union countries.