ANSWER: 2019, 2021
Explanation:
- According to the roadmap earlier laid down by the Auto Fuel Policy, BS-V norms were to be implemented from April 1, 2022 and BS-VI from April 1, 2024.
- Bharat Stage emission standards are based on European regulations were first introduced in 2000.
- India had enforced Bharat stage III norms across the country since October 2010. In 13 major cities, Bharat stage IV emission norms were put in place since April 2010.
- Currently, BS-IV petrol and diesel are being supplied in whole of Northern India covering Jammu and Kashmir, Punjab, Haryana, Himachal Pradesh, Uttarakhand, Delhi and parts of Rajasthan and western UP.
- The rest of the country has BS-III grade fuel.
- From 2016, all of Goa, Kerala, Karnataka, Telangana, Odisha, Union Territories of Daman and Diu, Dadra-Nagar-Haveli and Andaman & Nicobar will get BS-IV fuel.
- For the rest of the country is scheduled to get supplies of BS-IV from 1 April, 2017.