The Supreme Court today banned the sale and registration of vehicles which are not compliant with BS-IV emission norms from April 1 across the country. All the vehicles of Bharat Stage III are banned. Centre backed auto manufacturer since they had 8 lakh Bharat Stage III in stock. The companies had suggested the government deadline for 1 April 2017 was for stopping manufacture of BS III vehicles, and not their registration.
BS-IV emission norm will be implemented from 1st of April while most of the manufacturers of two, three and four wheelers have started manufacturing BS IV vehicles with government notifying March 31, 2017 as the last date for manufacturing of such vehicles.
What are Bharat stage emission rule?
Bharat stage emission standards’ are emission standards instituted by the Government of India to regulate the output of air pollutants from internal combustion engine equipment, including motor vehicles. The standards and the timeline for implementation are set by the Central Pollution Control Board under the Ministry of Environment & Forests and climate change.
What is the difference between BS-III and BS-IV?
The banned BS-III emission standards were first introduced in 2005 in NCR and selected 13 cities. Later in 2010, BS-III emission norms were introduced nationwide. Emissions are tested over the India Drive Cycle (IDC).
The emission norms led to phasing out of two stroke engines of two-wheelers. The electronic controls were also introduced keeping in view vehicular emissions.
The emission norms helped in bringing down the level of pollution significantly whereas there were increase in vehicle cost due to improved technology.
BS-IV norms have also been in practice since 2010 in 13 major cities. Now, it will be followed nationwide.
In order to comply with the BSIV norms, 2- and 3-wheeler manufacturers will have to fit an evaporative emission control unit, which should lower the amount of fuel that is evaporated when the motorcycle is parked.
BS IV standards introduced several new requirements, including tightened NOx+HC emission limits, harmonization of the emission testing cycle and the definition of motorcycle classes with the UNECE Global Technical Regulation 2 (GTR-2).
Beginning with BS IV standards, emissions are tested over the Worldwide Harmonized Motorcycle Test Cycle (WMTC).