Page 183 - The Central Motor Vehicles Rules, 1989

RULE 115 THE CENTRAL MOTOR VEHICLES RULES, 1989 155

(8) The certificate issued under sub-rule (7) shall, while it remains effective be valid
throughout India.]
1
[(9) Mass emission standard for diesel vehicles.
Type Approval Tests

Vehicle category HC* CO* NO* Smoke
(g/KWH) (g/KWH) (g/KWH)
Medium & heavy over 3.5 ton/ GVW 2.4 11.2 14.4 ***
Light diesel up to 3.5 ton/GVW 2.4 11.2 14.4 ***
or CO** HC+NOx**
Reference mass R(Kg) g/Km g/Km
R<1020 5.0 2.0
1020 <R <1250 5.7 2.2
1250 <R <1470 6.4 2.5
1470 <R <1700 7.0 2.7
1700 <R <1930 7.7 2.9
1930 <R <2150 8.2 3.5
R < 2150 9.0 4.0
Note : * The test cycle is as per 13 mode cycle on dynamometer.
** The test should be as per Indian Driving Cycle with cold start.
*** The emissions of visible pollutants (smoke) shall not exceed the limit value to
smoke density. When expressed as light absorption coefficient given below for various
nominal flows when tested at constant speeds over full load. (As indicated at Annexure
I).
COP STANDARDS
* 10% relaxation in the standards for HC, CO and NOx would be given.
** 10% relaxation in the standards for CO and combined HC+NOx would be given.
2
[Mass emission standards for petrol-driven vehicles].
Type Approval Test
(i) Passenger Cars
Cubic capacity Carbon Monoxide (gm/km) HC+NOx
3
(Cm ) (gm/km)
Passenger cars fitted Passenger cars not Passenger cars fitted Passenger cars not
with catalytic fitted with catalytic with catalytic fitted with catalytic
converter converter converter converter
< 1400 4.34 8.68 1.50 3.00
> 1400 < 2000 5.60 11.20 1.92 3.84
> 2000 6.20 12.40 2.18 4.36
Note : 1. The tests will be as per Indian driving cycle with warm start. However,
with effect from 1st April, 1998, the test will be as per Indian driving cycle with cold
start for catalytic converter fitted vehicles as:—

1 Substituted vide GSR 163(E), dt. 29-3-1996.
2 Substituted by GSR 46(E), dt. 21-1-1998, w.e.f. 1-4-1998.