|Bharat Stage (BS) Emission Standards (BSES)
- The Bharat Stage (BS) Emission Standards (BSES) were introduced by the Government of India in 2000, and are set by the Central Pollution Control Board (CPCB) under the Ministry of Environment.
- ‘BS’ stands for Bharat Stage, the emission regulation or fuel standards mandated by the government of India for motor vehicles.
- BS-I was launched in 2000
- BS-II in 2001 (nationwide in 2005)
- BS-III in 2005 (nationwide 2010)
- BS-IV in 2010 (nationwide 2017)
- There is no BS-V, and BS-VI arrived in 2017 (nationwide 2020).
- BS-VI or less polluting emission norms were mandated across the country from April 1, 2020, which meant that all new vehicles being manufactured after the norms were forced to comply with the new standards that cover four-wheelers, two-wheelers as well as commercial vehicles.