Page 188 - The Central Motor Vehicles Rules, 1989

160 THE CENTRAL MOTOR VEHICLES RULES, 1989 RULE 115

(A) Motor Cars with seating capacity of and upto 6 persons (including driver
and Gross Vehicle Mass (GVM) not exceeding 2500 kg.
Standards (Type Approval = COP) (g/km)
Vehicles with CO (HC+NOx) PM
Gasoline engine 2.2 0.5 —
Diesel engine 1.0 0.7 0.08

(B) Four-Wheeler Passenger Vehicles with GVW equal to or less than 3500 kg and
designed to carry more than 6 persons (including driver) or maximum mass of which
exceeds 2500 kg.

Class Ref.mass(rw) Kg Limit Values for Type Approval (TA) as well as COP
Mass of CO (g/km) Mass of HC+NOx Mass of PM
(g/km) (g/km)
Gasoline Diesel Gasoline Diesel Diesel
I rw < 1250 2.2 1.0 0.5 0.7 0.08
II 1250 < rw < 1700 4.0 1.25 0.6 1.0 0.12
III 1700 < rw 5.0 1.5 0.7 1.2 0.17

Notes : 1. The test including driving cycle shall be as per sub-rule (10), with the modifications
that—
(i) there shall be no relaxation of norms for COP purposes,
(ii) the tests shall be on Chassis dynamometer,
(iii) the driving cycle shall be at a maximum speed of 90 kmph, and
(iv) the reference fuel shall be of a maximum of 0.05% sulphur content.
2. Commercial fuel for meeting above norms shall be upto 0.05% mass maximum
sulphur content.
3. There shall be no crankcase emissions for petrol driven vehicles.
4. Evaporative emission shall not be more than 2.0 g/test from petrol driven vehicles.
5. For the above vehicles when fitted with catalytic converter deterioration factor shall
be as follows:
Gasoline engines : CO=1.2; (HC+NOx)=1.2;
Diesel engines : CO-1.1; (HC+NOx)= 1.0; PM=1.2
PROVIDED that the vehicle manufacturers may opt for an ageing test of 80,000
kms. for evaluating deterioration factor, as per procedure that may be laid down by the
Central Government.
6. For diesel engine vehicles, the emission of visible pollutants (smoke) shall not exceed
the limit value of smoke density, when expressed as light absorption coefficient for
various nominal flows as in Annexure-I to Rule 115(9) when tested at constant speed
over full load.
1
[(C) Four Wheeled Vehicles (other than passenger vehicles) with GVW equal to
or less than 3500 kg shall conform the following norms:—

1 Inserted vide GSR 286(E), dt. 24-4-2001.