Page 16 - Safety, Environment and Mandatory Requirements

Environment - Emission Norms:

Though Automobile is not a major emitter of CO compared to many sectors, but this was possible
due to the stringent emission norms and standards introduced in the early 90’s.

Reason for the introduction of the Norms was to control air pollution and this was part of the
Global Warming Exercise. Automobile industry took the lead. India also followed the Global Rules

since 1996. In India it is called Bharat Stage Started as Stage I. India has now introduced Bharat
st
Stage VI in all the Automobiles sold in India WEF 1 April 2020. This makes India’s Emission
norm equivalent to Euro Norm VI with global standards in all vehicles.

What is known as Emission in Automobile: We have two types of Engines 2 Stroke and 4

Stroke. The 4 strokes are Suction, Compression, Power and Emission. When the Compression
takes place un-burnt fuel creates Emission waste, which exits through its exhaust system known
as Carbon Monoxide (CO2).

Environmental carbon monoxide is produced by incomplete combustion process from any carbon

containing fuel and Its level are higher with increased lead content . In India we have introduced
st
eco friendly fuel which low lead content WEF 1 April 2020.

The following are some of the most important rulemaking steps in the heavy-duty engine
regulations: Euro I standards were introduced in 1992, followed by the introduction of Euro II

standards in 1996. These standards applied to both truck engines and urban buses, the urban bus
standards, however, were voluntary.