New Delhi, Oct. 1 -- India's carmakers will get three years to self-certify a dozen fuel-saving technologies under the Corporate Average Fuel Efficiency (CAFE) III norms, which will kick in on 1 April, helping them meet the tighter efficiency targets. During this period, the ministry of road transport and highways (MoRTH) will develop certification methods for these technologies, which will become mandatory from FY31, according to the norms published on 30 September.

These 12 fuel efficiency technologies are: start-stop ignition systems, tyre pressure monitoring systems, regenerative braking, efficient 12V/48V alternators, six-speed or higher transmissions, 12V/48V motor-generators (micro-hybrids), exterior LED lighting, advanced glazing...