BS3 petrol, BS4 diesel vehicles banned in Delhi

Vehicles not conforming to latest emission norms will not be allowed to ply on Delhi’s roads with immediate effect, the transport department announced on Monday, as air quality worsened in the capital.

The deterioration in air quality prompted the Commission for Air Quality Management to trigger emergency measures under Stage III of the Graded Response Action Plan (Grap) on Sunday, which included a ban on all private construction activity.

Petrol four-wheelers with BS-III emission standards and diesel vehicles with BS-IV standards are banned till December 9, unless the commission lifts Stage III restrictions earlier than that, the transport department said in its order. Vehicles on government duty or providing emergency services are exempt, it said.