Emission norms are the maximum prescribed level of CO, HC and set by the Government, which a vehicle is permitted to emit from its exhaust while running.

All the vehicle manufacturers are required to ensure that their vehicles do not exceed the permissible limits of pollutants in exhaust as laid down.

Euro Norms:

Euro norms are the permissible emission levels for both petrol and diesel vehicles, which have been implemented in European countries. Euro I norms were implemented from year 1992 and five such norms (Euro I to Euro V) planned for implementation in phased manner upto the years 2008.

Indian (Bharat Norm):

Emission norm for our country were worked out and implemented with effect from the year 1992. However, as per Supreme Court Ruling, EURO I Norm were implemented in Delhi from 1 June 1999 as notified by Government of India through Motor Vehicle Regulations (MVR). These norms were known as INDIA 2000 (Bharat – I) norms. These norms were extended to all metros subsequently.

EURO II are were implemented from the year 2002 known as Bharat II norms. Details are given in Table 3 & 4

Above norms have to be followed by all Indian Automobile Manufacturers. Violation of these norms attracts penalty as per Motor Vehicles Rule No.115 and 116.

Table 3: Emission Standards for 3-Wheel Emission Norms

Table 4: Emission Standards for 2-Wheel Emission Norms