Page 239 - The Central Motor Vehicles Rules, 1989

RULE 115 THE CENTRAL MOTOR VEHICLES RULES, 1989 211
1
[(14) The CNG/Bio-CNG/HCNG vehicles shall meet all the safety requirements
as per AIS 24 and AIS 28 (Revision 1), as applicable.
2
[(15) The compatibility of vehicle to level of ethanol bland 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.]]
3
[(16) 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.]
4
[TABLE 2
ON-BOARD (OBD) DIAGNOSTICS (OBD) EMISSION THRESHOLD
LIMITS FOR BSVI OBD STAGE II-A
(FOR VEHICLES MANUFACTURED ON OR AFTER THE 1st APRIL, 2023)
Vehicle WMTC Class CO THC NOx
(mg/km) (mg/km) (mg/km)
PI vehicles 1,2-1 & 2-2 2170 1400 350
3-1 & 3-2 2170 630 450

CI vehicles All 2170 630 900
TABLE 3
ON-BOARD (OBD) DIAGNOSTICS (OBD) EMISSION THRESHOLD LIMITS FOR
BSVI OBD STAGE II-B
(FOR VEHICLES MANUFACTURED ON OR AFTER THE 1st APRIL, 2025)
Vehicle WMTC Class CO NMIC NOx PM
(mg/km) (mg/km) (mg/km) (mg/km)
(1)
PI vehicles All 1900 250 300 50
CI vehicles All 1900 320 540 50
(1)
In case of P.I. engines, applicable only to vehicles with Direct Injection engines.]
(ii) The Emission Standards (Bharat Stage VI) for two wheelers with Spark Ignition
engines other than those specified in para (19), (i) above: (Vehicles with cc < 50 and Vmax
< 50 km/hr) shall be as per the below table:—
TABLE
Pollutant TA=COP norms Deterioration Factor Test Cycle (Cold Start
mg/km (D.F.) at T=0 sec)
CO 500 1.2 IDC as per AIS 137
HC 350 1.2
NOx 150 1.2

1 Inserted vide GSR 156(E), dt. 8-3-2021, w.e.f. 8-3-2021.
2 Substituted vide GSR 728(E), dt. 11-10-2021, w.e.f. 12-10-2021.
3 Inserted, ibid.
4 Substituted vide GSR 809(E), dt. 9-11-2022, w.e.f. 10-11-2022.