The fuel efficiency levels of a vehicle denotes the number of kilometers a vehicle runs per litre of fuel consumed. As fuel is burned, carbon dioxide is released into the atmosphere from the vehicle tail pipe. In GVR, the fuel efficiency level is used to calculate the mass of carbon dioxide (CO2) emitted (in grams) for every vehicle kilometre. The release of carbon emissions leads to global warming, damages from which are factored into rating the vehicle.
Any auto manufacturer, who intends to produce vehicle for use on road, for registration by transport authority would require compliance certificate to Central Motor Vehicles Rules (CMVR) of Ministry of Road Transport and Highways (MoRTH). If the manufacturer is seeking CMVR compliance certificate, they have to establish compliance by carrying out requisite type-approval tests on a vehicle prototype at one of the testing agencies listed under CMVR. Pollutant levels of a vehicle are determined through these type approval tests and are declared on Form 22.
Air Pollutants and carbon are also released during vehicle production and fuel production apart from those released during the use of the vehicles. Does GVR take those into account?
In its current phase, GVR accounts for plant to wheel emissions i.e. both upstream emissions (limited to fuel production, and distribution) and tailpipe emissions (GHGs and air pollutants) due to combustion of fossil fuels. Because of insufficient data does not include emissions released during vehicle production process, fuel extraction and vehicle scrappage. Please stay tuned for updates.
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At present, GVR only includes two and three wheelers. In the next phase, cars are likely to be included. Please stay tuned for updates. But until then, you can ask your auto dealer for the Form 22 before purchasing your new car and check its pollutant levels.