Page 226 - The Central Motor Vehicles Rules, 1989

198 THE CENTRAL MOTOR VEHICLES RULES, 1989 RULE 115

(18) In service compliance of vehicles shall be as per procedure laid down in
AIS137 and as amended time to time.
1
[(19) (a) During type approval and COP applicable from 1st April, 2020, real
world driving cycle emission measurement using PEMS shall be carried out
for data collection and for vehicles of category M and N having gross vehicle
weight not exceeding 3500 kgs, manufactured on or after 1st April, 2023, for
all models, during real world driving cycle emission measurement using
PEMS, Conformity factor shall be applicable as per the procedure laid down
in AIS 137 and as amended from time to time.
(b) During the type approval, the Conformity factor (CF), shall be as per the
Table below:—
Table : Conformity Factor (CF)
Pollutant CFpollutant
(3)
NOx 1 + margin NOx
With margin NOx = 0.43
(1) (3)
PN 1+margin PN
With margin PN = 0.5
(2)
CO —
(1)
Applicable for: Positive Ignition (Direct Injection) engines and
Compression Ignition Engines only.
(2)
CO emissions shall be measured and recorded at RDF tests.
(3)
Margin is a parameter taking into account considering the additional
measurement uncertainties introduced by the PEMS equipment.]
2
[20. The CNG/Bio-CNG/HCNG Vehicles shall meet all the safety requirements
as per AIS 024, AIS-028 Revision 1 as applicable.]
3
[21. The compatibility of vehicle to level of ethanol blend of E12 or E15 or E20
or E85 or E100 shall be defined by the vehicle manufacturer and the same
shall be displayed on vehicle by putting a clearly visible sticker.]
4
[22. For the bi-Fuel vehicles, the Reference Gasoline fuel shall be as per E5 or
E10 or E12 or E15 as declared by the manufacturer during approval.]
(ii) The Emission Standards for Bharat Stage VI (BS-VI) for category M and N
vehicles having Gross Vehicle Weight exceeding 3500 kg., manufactured on or after 1st
April, 2020 for all models, shall be as under:—
TABLE 1
Limit values for M&N category vehicles: BS-VI
Limit values
CO THC NMHC CH4 NOx NH3 PM mass PM number
(mg/kWh) (mg/kWh) (mg/kWh) (mg/kWh) (mg/kWh) (ppm) (mg/kWh) (numbers/
kWh)
WHSC 1500 130 — — 400 10 10 8.0 x 10 11
(CI)

1 Substituted vide GSR 226(E), dt. 27-3-2023, w.e.f. 27-3-2023.
2 Inserted vide GSR 585(E), dt. 25-9-2020, w.e.f. 25-9-2020.
3 Substituted vide GSR 728(E), dt. 11-10-2021, w.e.f. 12-10-2021.
4 Inserted, ibid.