Page 282 - The Central Motor Vehicles Rules, 1989

254 THE CENTRAL MOTOR VEHICLES RULES, 1989 RULE 115B

(c) Type approvals for vehicles retrofitted with CNG kits shall be valid for three
years from the date of issue of such approval and shall be renewed for every
three years at a time.
(d) CNG kit shall be type approved for vehicles of specific make. Such kit shall
be considered fit for retrofitment in any vehicle within a specified range of
engine capacity of cc within a range of ± 7% for vehicles up to 1500 cc & ±
5% above 1500 cc.
(e) Real world driving cycle emission measurement using PEMS shall be
carried out for data collection for three years from the date of notification
for the computation of Conformity factor (CF).
(f) The engine power shall be measured on engine dynamometer as per
procedures prescribed in AIS 137 as amended from time to time. Measured
power with CNG shall within a range of -15% £ Power on CNG £ +5% w.r.t
the power measured on diesel. The power test can be performed, on request
of the manufacturer, on the complete vehicle on a chassis dynamometer.
The engine power shall be calculated as the sum of the power measured at
wheels and the transmission losses of the vehicle.
(g) CNG vehicles or kit components, including their installation, shall conform
to the safety checks given in the Annexure IX.
(h) In-service conformity and IUPR requirements to be applicable after 3 years
from the date of implementation of this notification.]
1
[D. APPLICABLE EMISSION NORMS:
The applicable emission norms shall be as per the following table, namely:—
Category of Engines Applicable Emission Norms from Rule 115
1. O.E. CNG or Bio-CNG or LNG Category M and Prevailing and applicable gasoline norms
Category N vehicles with GVW equal to or less
than 3,500 kg. three wheelers and two wheelers
2. CNG or Bio-CNG or LNG Category M and Prevailing and applicable gasoline norms
Category N vehicles with GVW equal to or less
than 3,500 kg. three and two wheelers retro
fitment from gasoline vehicles
3. CNG or Bio-CNG or LNG (dedicated/dual fuel) Prevailing and applicable diesel norms
Category M and Category N vehicles with
GVW equal to or less than 3,500 kg. three and
two wheelers retro fitment from diesel vehicles
4. CNG or Bio-CNG or LNG (OE/retrofitted Prevailing and applicable diesel engine
(dedicated/dual fuel) engines Category M and norms based on 13-mode steady-state
Category N vehicles with GVW greater than engine dynamometer test or 13-mode
3,500 kg. manufactured up to 1st April, 2010 Engine Steady State Cycle as applicable
5. CNG or Bio-CNG or LNG engines Prevailing and applicable diesel engine
(OE/retrofitted (dedicated/dual fuel) for emission norms.]
Category M and Category N vehicles with
GVW greater than 3,500 kg manufactured on
the* from 1st April, 2010 (Word “the” should be
read “and”)

1 Substituted vide GSR 1151(E), dt. 29-11-2018, w.e.f. 29-11-2018.