Page 17 - Safety, Environment and Mandatory Requirements

Environment - Emission Norms: As introduced in India:

1991 Idle CO limits for petrol vehicles and free acceleration smoke for diesel vehicles, mass
emission norms for petrol vehicles.

1992 – Mass emission norms for diesel vehicles.
1996 – Revision of mass emission norms for petrol and diesel vehicles, mandatory fitment of
catalytic converter for cars in metros on unleaded petrol.

1998 – Cold start norms introduced.
2000 – India 2000 (equivalent to Euro I) norms, modified IDC (Indian driving cycle), Bharat Stage

II norms for Delhi.
2001 – Bharat Stage II (equivalent to Euro II) norms for all metros, emission norms for CNG and
LPG vehicles.

2003 – Bharat Stage II (equivalent to Euro II) norms for 13 major cities.
2005 – From 1 April, Bharat Stage IV (equivalent to Euro IV[citation needed]) norms for 13 major

cities.
2010 – Bharat Stage IV emission norms for 2-wheelers, 3-wheelers and 4-wheelers for the entire
country, whereas Bharat Stage IV (equivalent to Euro IV) for 13 major cities for only 4-wheelers.

Bharat Stage IV also has norms on OBD (similar to Euro III but diluted).
2017 – Bharat Stage IV norms for all vehicles.

2018 - Bharat Stage VI fuel norms from 1 April 2018 in Delhi instead of 2020.[16]
2020 – Bharat Stage VI fuel norms from 1 April 2020 nationwide switching India to world’s
cleanest diesel and petrol.

(Ref : WIKIPEDIA)

India’s Emission Norms are now at Par with Globe