India, Oct. 27 -- The Central Government has amended the Central Motor Vehicles Rules, 1989, introducing regulatory provisions for vehicles running on E100 fuel, which consists of 100% ethanol, under the flex-fuel vehicle framework. The changes were notified by the Ministry of Road Transport and Highways and include updates to fuel references, emission standards and vehicle-testing requirements.

Under the amendments, several references to E85 fuel have been expanded to E85 or E100 in relevant emission standards and testing provisions. The government has clarified that these fuels should be used only in flex-fuel vehicles specifically designed by original equipment manufacturers (OEMs). The rules also revise certain vehicle and fuel clas...