Page 186 - The Central Motor Vehicles Rules, 1989

158 THE CENTRAL MOTOR VEHICLES RULES, 1989 RULE 115

5. Commercial fuel shall be as notified by the Ministry of Environment and Forests
vide Notification No. G.S.R. 176 (E), dt. the 2nd April, 1996.
6. Reference test fuel shall be as specified in Annexure IV C.
2-Wheelers and 3-Wheelers CO (g/km) HC+NOx (g/km)
2-Wheeler 3-Wheeler 2-Wheeler 3-Wheeler
Type Approval 2.0 4.0 2.0 2.0
Conformity of Production 2.4 4.8 2.4 2.4

Notes : The test shall be as per the Indian Driving Cycle, with cold start on Chassis
Dynamometer as specified in Annexure IV B to the principal rules.
Commercial fuel shall be as notified by Ministry of Environment and Forests vide
Notification No. G.S.R. 176 (E), dt. 2nd April, 1996.
Reference test fuel shall be as specified in Annexure IV C.
1
[For 2-wheelers and 3-wheelers fitted with catalytic converter, a deterioration
factor of 1.2 on Type approval limits, will be applicable for durability:
PROVIDED that the vehicle manufacturers may opt for an ageing test of 30,000
kms. For evaluating deterioration factor, as per procedure that may be laid down by the
Central Government.]
B. FOR DIESEL VEHICLES (INCLUDING TWO AND THREE WHEELERS)
I. Vehicles with GVW exceeding 3.5 ton
Pollutants Limits for

Type Approval Conformity of
Production
CO (g/kWh) 4.5 4.9
HC (g/kWh) 1.1 1.23
NOx(g/kWh) 8.0 9.0

PM (g/kWh) for engines with power 0.36 0.4
exceeding 85 kW
PM (g/kWh) for engines with power not 0.36 0.4
exceeding 85 kW

II. Vehicles with GVW equal to or less than 3.5 ton
Pollutants Limits for
Type Approval Conformity of
Production
CO (g/kWh) 4.5 4.9
HC (g/kWh) 1.1 1.23
NOx (g/kWh) 8.0 9.0

1 Inserted vide GSR 400(E), dt. 31-5-2002.