Pollution Control Norms

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(Petrol/CNG/LPG driven vehicles, manufactured prior to Bharat Stage-IV norms)

 

Sr.
No.
 

Vehicle Type 

CO% 

*HC (n hexane equivalent)
ppm
 

1.

2  - Wheelers (2/4-stroke) (Vehicles
manufactured on and before 31st March, 2000) 

4.5

9,000

2.

2- Wheelers (2-stroke) (Vehicles
manufactured between 31st March, 2000 and 31st March 2010) 

3.5

6,000

3.

2  - Wheelers (4-stroke) (Vehicles
manufactured between 31st March, 2000 and 31st March 2010)

3.5

4,500

4.

2- Wheelers (2-stroke) (Vehicles
manufactured after 31st March 2010)

3.0

4,000

5.

2- Wheelers (4-stroke) (Vehicles
manufactured after 31st March 2010)

3.0

3,000

6.

3 - Wheelers (2/4-stroke) (Vehicles
manufactured on and before 31st March, 2000)

4.5

9,000

7.

3 - Wheelers (2-stroke) (Vehicles
manufactured after 31st March, 2000)

3.5

6,000

8.

3 - Wheelers (4-stroke) (Vehicles
manufactured after 31st March, 2000)

3.5

4,500

9.

Four wheelers manufactured as per pre-Bharat Stage II emission norms

3.0

1,500

10.

Four wheelers manufactured as per Bharat Stage II or III emission norms

0.5

750

 

(Petrol/CNG/LPG driven vehicles, manufactured as per Bharat Stage-IV norms)

 

Sl. No.

Type of vehicle

Idle emission Limits High idle emission limits
CO% HC (n hexane equivalent) ppm CO% Lambda λ (RPM-2500±200)

1

2

3

4

5

6

1

Compressed Natural Gas/Liquefied Petroleum Gas driven 4-wheeler manufactured as per Bharat Stage-IB norms

0.3%

200ppm

-

-

2

Petrol driven 4-wheeler manufactured as per Bharat Stage-IB norms

0.3%

200 ppm

0.2

1±0.03 or as declared by the vehicle manufacturer

 

 

DIESEL VEHICLES

 

S.No.

Method of Test

Maximum Smoke Density

Light absorption coefficient (1/m)  Hartidge units 

1

Free acceleration test for turbo charged engine and
naturally aspirated engine for vehicles manufactured as per Bharat Stage-IV or Bharat Stage-VI norms

2.45

65

2

Free acceleration test for turbo charged engine and
naturally aspirated engine for vehicles manufactured as per Bharat Stage-IV or Bharat Stage-VI norms

1.62

50