Page 266 - The Central Motor Vehicles Rules, 1989

238 THE CENTRAL MOTOR VEHICLES RULES, 1989 RULE 115AB

(ii) Engine performance test Part IV MoRTH/CMVR/TAP-115/116 and notifications
(gross power without fan) issued by the Government of India in this respect from
time to time
Note : (a) The mass emission test shall be carried out on engine dynamometer,
as applicable.
(b) Vehicles offered for type approval to the testing agency referred in rule
126 of Central Motor Vehicles Rules, 1989 shall have to comply with
fitness requirement as applicable under these rules;
(c) Test procedure and safety guidelines of CNG/Bio-CNG/LNG
vehicles, kit components including installation thereof, shall be as per
Annexure IX AIS 024 and AIS 028(rev.1), as amended from time to
time;
(d) The test agency shall complete the test and give necessary certificate
within three months of the same being submitted for test;
(e) Testing agencies will be required to indicate specifically, the models
and their variants on which the replacement of new engine will be
valid.
(II) Replacement of In-use Diesel Engine by New dedicated CNG/
Bio-CNG/LNG Engine-—
(a) In case of agriculture tractors, power tillers, construction equipment
vehicles and combine harvesters having in-use diesel engine which is
replaced with a Compressed Natural Gas (hereinafter referred to as CNG)
or Bio-Compressed natural gas ((hereinafter referred to as Bio-CNG) or
LNG (Liquefied Natural Gas), Type approval shall be given for specific
make and model of vehicle and shall be approved as per prevailing mass
emission norms. Emission test procedure shall be as per
MoRTH/CMVR/TAP-115/116 (as amended from time to time) and as
notified by the Central Government from time to time under the applicable
law. Mass emission standards for CNG or Bio-CNG or LNG engines of
agriculture tractors, power tillers, construction equipment vehicles and
combine harvesters shall be same as the prevailing mass emission standards
applicable for diesel engines of agriculture tractors, power tillers,
construction equipment vehicles and combine harvesters, with the
exception that the HC (Hydrocarbon) shall be replaced by NMHC
(Non-Methane Hydrocarbon) on measurement basis as detailed in rule 115
AA;
(b) CNG or Bio-CNG or LNG replacement engine approved on the vehicle for
specific engine capacity can be installed on the specific make and model of
vehicle and its variants fitted with the same capacity engine;
(c) Test procedure and safety guidelines for such CNG, Bio-CNG, LNG kit
components, including installation thereof, shall be as per AIS 024 and AIS
028 Rev 01 as applicable and amended from time to time, till such time as
corresponding BIS specifications are notified;
(d) The CNG/Bio-CNG/LNG composition used for carrying out emissions
shall meet the fuel specifications as notified by the Central Government
from time to time;