Page 232 - The Central Motor Vehicles Rules, 1989

204 THE CENTRAL MOTOR VEHICLES RULES, 1989 RULE 115

Table 1
OBD threshold Limits: (BS-VI OBD-I)

Limit in mg/kWh
NOx PM Mass
(1) (2) (3)
Compression ignition engines 1500 Performance Monitoring (1)
Positive Ignition engines 1500 —
(1)
Performance monitoring for wall flow diesel particulate filter shall be as per AIS:137
and as amended time to time.
(b) BS-VI-OBD-II threshold for BS VI vehicles manufactured on or after 1st April,
2023 shall be as given below:—
Table 2
OBD threshold Limits: (BS-VI OBD-II)

Limit in mg/kWh
NOx PM Mass CO
(1) (2) (3) (4)
Compression ignition engines 1200 25 —
Positive Ignition engines 1200 — 7500
At the manufacturer’s request type approval may be granted for compliance
to BS-VI OBD-II requirements before its implementation:
PROVIDED that nothing in this sub-rule shall apply to the motor vehicle used
for Government Purposes relating to the defence of the country which is
registered under section 60 of the Act and to the special purpose vehicle
(armoured and other specialised vehicle) used for operational purposes for the
maintenance of law and order and internal security.
(17) The CNG or Bio-CNG or HCNG Vehicles shall meet all the safety requirements as
per AIS:024, AIS:028 Revision 1 as applicable.
(18) The compatibility of vehicle to level of ethanol blend of ED95 shall be defined by
the vehicle manufacturer and the same shall be displayed on vehicle by putting a
clearly visible sticker.]
(19) (i) The Emission Standards for Bharat Stage-VI (BS-VI) for two wheelers vehicle
models manufactured on or after 1st April, 2020 shall be as per Tables below:—