Page 278 - The Central Motor Vehicles Rules, 1989

250 THE CENTRAL MOTOR VEHICLES RULES, 1989 RULE 115B

(a) type approval for in-use diesel engines retrofitted or modified for CNG
or Bio-CNG or LNG dual fuel or dedicated dual fuel conversion by
modification of engines of in-use diesel vehicles shall be given for
specific make and model of vehicle and shall meet applicable type
approval norms of diesel vehicles corresponding to the year of
manufacture of such diesel vehicle;
(b) CNG or Bio-CNG or LNG dual fuel or dedicated dual fuel kit approved
on the vehicle for specific engine capacity can be installed on the base
model and its variant fitted with the same capacity engine;
(c) Vehicles offered for type approval to the testing agency as referred to
in rule 126 shall have to comply with the applicable fitness
requirement, under these rules;
(d) prevailing and applicable tests for particulate matter and emission of
visible pollutants (smoke) provided under rule 115 shall be applicable
for dual fuel or dedicated dual fuel CNG or Bio-CNG or LNG engine
or vehicle;
(e) separate type approval shall be required for mechanically controlled
and electronically controlled diesel fuel injected vehicles when
modified for dual fuel or dedicated dual fuel CNG or Bio-CNG or LNG
operation;
(f) mass emission standards for CNG or Bio CNG or LNG dual fuel or
dedicated dual fuel vehicles shall be same as are applicable for diesel
vehicles with exception that HC shall be replaced by NMHC
(Non-Methane Hydrocarbon) on measurement basis.
Explanation : In the case of OE or conversion of “In-Use” vehicles by
modification—
(a) for the purpose of granting type approval to the vehicle fitted with
dual fuel or dedicated dual fuel CNG or Bio-CNG or LNG engine
(converted from diesel engine) as O.E., or conversion by modification
of “In-use” diesel vehicles, performance tests shall be carried as per
Table given below by the test agencies, namely:—
TABLE
Sl. Test Reference Document
No.
(1) (2) (3)
1. Mass emission tests for dual fuel MoRTH/CMVR/TAP-115/116 and notifications
CNG/Bio-CNG/LNG vehicles shall be as issued by Government of India in this regard.
per prevailing norms, as applicable for
diesel vehicles.
2. Engine performance test MoRTH/CMVR/TAP-115/116 or IS:14599-1999
(as applicable) and notifications issued by the
Central Government in this regard.
3. Gradeability test In accordance with notification issued
under rule 124 of the Central Motor Vehicles
Rules, 1989.
4. Fuel consumption test Sl. no. 31 of notification no. S.O. 1365(E), dated the
13th December, 2004.