Order of the Supreme Court of India regarding a comprehensive action plan for air pollution control, 13/08/2018
Order of the Supreme Court of India in the matter of M. C. Mehta Vs Union of India & Others dated 13/08/2018 regarding a comprehensive action plan for air pollution control with timelines. The matter deals with stickers for vehicles to indicate the nature of fuel being used. 
It is agreed that a hologram based sticker of light blue colour should be used for petrol/CNG vehicles and a hologram based sticker of orange colour should be used for diesel vehicles applicable for NCR Region.