Emission Standards : BS III

  • First Indian emission regulations were idle emission limits which became effective in 1989.
  • In 1991, Idle CO2 Limits for Gasoline Vehicles and Free Acceleration Smoke for Diesel Vehicles, Mass Emission Norms for Gasoline Vehicles were issued. In the next year, Mass Emission Norms for Diesel Vehicles were formulated in India, which were revised in 1996.
  • In 1998 Cold Start Norms were introduced in India.
  • In 2000, India 2000 (Eq. to Euro I) Norms, Modified IDC (Indian Driving Cycle), Bharat Stage II Norms were introduced for Delhi.

Since 2000, India has started adopting European emission and fuel regulations for four-wheeled light-duty and for heavy-dc. Indian own emission regulations still apply to two- and three-wheeled vehicles.

The following table shows the reference of of BS with Euro standards.

Standard

Reference

Date

Region

India 2000

Euro 1

2000

Nationwide

Bharat Stage II

Euro 2

2001

NCR, Mumbai, Kolkata, Chennai

2003.04

NCR, 12 Cities

2005.04

Nationwide

Bharat Stage III

Euro 3

2005.04

NCR, 12 Cities

2010.04

Nationwide

Bharat Stage IV

Euro 4

2010.04

NCR, 12 Cities

As the table above shows, the implementation of BS-III was earlier scheduled for April 2010. However, in May the government extended the implementation till October 2010. Now, the Oil Industry has completed the implementation of BS-III Petrol and Diesel in the entire country. Introduction of BS-III Petrol was advanced in 20 states and BS-III Diesel in 23 States. In the last leg, BS-III Petrol and Diesel has been introduced in the seven North Eastern States in September 2010. Oil Industry had already introduced BS-IV Petrol and Diesel in all 13 identified cities (NCR of Delhi, Agra, Kanpur, Lucknow, Kolkata, Mumbai, Ahmedabad, Surat, Pune, Solapur, Chennai, Bangalore and Hyderabad) on April 1, 2010.

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