Page 222 - The Central Motor Vehicles Rules, 1989

194 THE CENTRAL MOTOR VEHICLES RULES, 1989 RULE 115

(5) Vehicle fuelled with Bio diesel blends up to 7% will be tested with reference diesel (B7) &
vehicles fuelled with Bio diesel blends above 7% will be tested with respective blends.
(6) CO2 emission and fuel consumption shall be measured as per procedure laid down in AIS
137 and as amended time to time.
Notes:
(1) The test shall be on Chassis Dynamometer.
(2) The test including driving cycle shall be as provided in sub-rule (10) with
the modifications that—
(i) the exhaust gas sampling should start at the initiation of the engine
start up procedure referred to in Annexure IV-E and as amended from
time to time as per AIS-137;
(ii) the driving cycle shall be at a maximum speed of 90 km/hour referred
to in Annexure IV-E and as amended from time to time as per AIS-137.
(3) There shall be no relaxation of norms for Conformity of Production (COP)
purposes and procedure for compliance shall be as per AIS-137 as amended
from time to time.
(4) Specifications for Reference Fuels shall be as below:—
(a) Reference natural gas fuel used in Natural Gas or Bio-Methane
mono-fuel or bi-fuel vehicles shall be as per Annexure IV-L (G20, G23
and G25).
(b) Reference LPG fuel used in LPG mono-fuel or bi-fuel vehicles shall be
as per Annexure IV-M (Fuel A and Fuel B), however, in case of
non-availability of reference fuels for CNG/LPG, the commercially
available CNG as per BIS 15958:2012 and LPG as per BIS 14861:2000
as amended from time to time shall be used for the purpose of Type
Approval and Conformity of Production.
(c) The reference ethanol fuel (E85) shall be as per the Annexure IV-Q.
1
[(d) The reference Gasoline fuels (E5) or (E10) (as specified by the
manufacturer), shall be as specified in Annexure IV-X or Annexure
IV-XA, respectively.]
(e) The Reference Diesel fuel (B7) shall be as specified in Annexure IV-T.
(f) Hydrogen Fuel vehicles shall be tested with reference fuel specified in
the Annexure IV-W to said rules.
(g) The reference fuel Biogas (Bio-methane) shall be as per IS 16087:2013
and as amended time to time.
2
[(h) The reference fuel Hydrogen Enriched Compressed Natural Gas
(HCNG) shall be as per IS 17314:2019 and as amended from time to
time.]
3
[(i) The reference ethanol fuel (E100) shall be as specified in Annexure
IV-SA.
(j) The reference ethanol fuel (E20) shall be as per IS 17021:2018.]

1 Substituted vide GSR 881(E), dt. 26-11-2019, w.e.f. 26-11-2019. Prior to substitution, item (d) read as under:
“(d) The Reference Gasoline fuel (E5) shall be as specified in Annexure IV-X”
2 Inserted vide GSR 585(E), dt. 25-9-2020, w.e.f. 25-9-2020.
3 Inserted vide GSR 156(E), dt. 8-3-2021, w.e.f. 8-3-2021.