BS-4 or BS-IV (Bharat Stage 4) Emission norms are a set of norms and rules which set the guidelines for the permissible emission levels. The Emission norms are are classified under category of vehicles i.e. Commercial Vehicle, Passenger Vehicle, Light Duty , Heavy Duty Vehicle etc. & further classified under Diesel & Petrol (Gasoline) engine.
The Government Of India has fixed a deadline of April 2010 to implement BS-IV / BS 4 norms to selected cities. BS 4 will be applicable to NCR (National Capital Territory) (Delhi) and other 10 cities Mumbai, Kolkata, Chennai, Bengaluru, Hyderabad, Ahmedabad, Pune, Surat, Kanpur and Agra.
There are many companies which came up with their BS-4 Complaint engines , with some of their engines modified & some with new engines, but soon all of the vehicle manufacturing companies will manufacture all types of engines compliant with BS-4 emission norms.
Some of the engines/models compliant are as follows:
- Maruti Suzuki Ritz with a K series 1.2-liter petrol engine
- Maruti Suzuki A-star
- Maruti Suzuki Alto
- Maruti Wagon R with a new engine to be launched by April or May 2010
- Maruti Swift Dzire
- Ashok Leyland with few engines
- Tata Motors with some modified engines
- Tata Nano
- Mahindra Scorpio VLX
soon all Indian / International automobile companies selling automobiles in India will convert or introduce BS-4 compliant engine in their vehicle. Some have already engines in their vehicles which comply with BS 4 Emission norms.
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@balkishanlal
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