The Bharat Stage (BS)-V norms will be implemented from which year?

The government has advanced the dates for implementation of the BS-V and BS-VI norms for the automobile sector by three years to address the deteriorating air quality. The BS-V norms will come into effect from April 2019 as against the earlier timeline of April 2022 and BS-VI norms will come into effect from April 2021, as against April 2024. Currently, India follows BS-IV norms in many cities and BS IV will be extended to the entire country by April 2017. Bharat stage (BS) norms, based on European regulations, are emission standards decided by the government to regulate the amount of air pollutants from vehicles.