Question raised in Lok Sabha on Regulating Vehicular Emissions, 28/03/2017. As per emission factors developed by Automotive Research Association of India (2007), NOx emissions are in the range from 0.28g/km to 0.84 g/km for diesel cars manufactured in the year 1996 to 2005 and with engine capacity 1600 cc to 2400cc. However, for diesel trucks it ranges between 9.30 g/km for post 2000 trucks to 13.84 g/km for trucks manufactured during 1991 to 2000. Hence, higher NOx emissions are generated from diesel trucks. Universalization of Bharat Stage IV emission norms by 1st April, 2017 and Bharat Stage VI by 1st April, 2020 has been proposed by Government to mitigate pollution from
vehicular emission.