Page 235 - The Central Motor Vehicles Rules, 1989

RULE 115 THE CENTRAL MOTOR VEHICLES RULES, 1989 207
1
[TABLE
Classification of vehicles and weighing factor

Sl. Class Definition of class WMTC Cycles Weighing factors
No. for final emission
results
(1) (2) (3) (4) (5)
1. Class 1 Vehicles that fulfil the following Part 1 Reduced Part 1 Reduced
specifications belong to class 1: Speed cold Speed Cold shall
3
3
50 cm < engine capacity < 150 cm and followed by Part be 30% and
Vmax < 50 km/h 1 Reduced Speed Part 1 Reduced
or Hot Speed Hot shall
3
engine capacity < 150 cm and 50 km/h be 70%
<Vmax < 100 km/h
2. Sub- Vehicles that fulfill the following Part 1 Reduced Part 1 Reduced
Class 2-1 specifications belong to class 2-1: Speed cold Speed cold shall
3
Engine capacity <150 cm and 100 km/h followed by Part be 30% and
<Vmax <115 km/h 2 Reduced Speed Part 2 Reduced
or Hot Speed Hot shall
3
Engine capacity >150 cm and Vmax be 70%
<115 km/h
3. Sub- Vehicles that fulfil the following Part 1 cold Part 1 cold shall
Class 2-2 specifications belong to class 2-2: followed by Part be 30% and
115 km/h < Vmax < 130 km/h 2 Hot Part 2 hot shall
be 70%
4. Sub- Vehicles that fulfil the following Part 1 cold Part 1 cold shall
Class 3-1 specifications belong to class 3-1: followed by Part be 25%
130 km/h <Vmax< 140 km/h 2 Hot followed Part 2 Hot shall
by Part 3 be 50% and Part
reduced speed 3 reduced shall
Hot be 25%
5. Sub- Vehicles that fulfil the following Part 1 cold Part 1 cold shall
Class 3-2 specifications belong to class 3-2: followed by Part be 25%
Vmax > 140 km/h 2 Hot followed Part 2 Hot shall
by Part 3 Hot be 50% and Part
3 shall be 25%]

(3) The test procedure and driving cycle for all test types including alternative
durability and OBD shall be as per AIS 137 and as amended time to time.
(4) Specification of Reference Fuels shall be as under:—
2
[(a) 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.]
(b) The reference ethanol fuel (E85) shall be as per Annexure IV-Q.
(c) The Reference Diesel fuel (B7) shall be as specified in Annexure IV-T.
(d) The reference ethanol fuel (E100) shall be as per Annexure IV-S.

1 Substituted vide GSR 881(E), dt. 26-11-2019, w.e.f. 26-11-2019.
2 Substituted vide GSR 728(E), dt. 11-10-2021, w.e.f. 12-10-2021.