The government has mandated all vehicles to display the fuel efficiency tags from 2011. The menace due to increased pollution has compelled the government to come out with such a proposal. The practice now is that the vehicle manufacturers are volunteering to do this. The Ministry of Forest and Environment claims that the auto industry is responsible for 15-20% of the greenhouse gas emission, which may go upto 25% by 2030.

The norm will be made effective through either Energy Conservation Act or the Motor Vehicles Act. The act will prompt all vehicles to clear the emission effect from the Bureau of Energy Efficiency and the manufacturers are at the perils to face the challenge. The pollution problem is high especially in metros and the environmentalists cry over this.

Delhi has the share of 50 lakh vehicles on roads per day and the territory government is maintaining its law on certain norms to enter from the 4 satellite towns. The government is keen on making this as a mandatory aspect to be followed by 2011. However, the emission from auto industry is less compared to power and agriculture sectors. Yet the emission affects the climate as well.