Pollution Control Norms
Petrol/CNG/LPG driven vehicles, manufactured prior to Bharat Stage-IV norms
| Vehicle Type | CO% | *HC (n hexane equivalent) ppm |
|---|---|---|
| 2 – Wheelers (2/4-stroke) (Vehicles manufactured on and before 31st March, 2000) |
4.5 | 9,000 |
| 2- Wheelers (2-stroke) (Vehicles manufactured between 31st March, 2000 and 31st March 2010) |
3.5 | 6,000 |
| 2 – Wheelers (4-stroke) (Vehicles manufactured between 31st March, 2000 and 31st March 2010) |
3.5 | 4,500 |
| 2- Wheelers (2-stroke) (Vehicles manufactured after 31st March 2010) |
3.0 | 4,000 |
| 2- Wheelers (4-stroke) (Vehicles manufactured after 31st March 2010) |
3.0 | 3,000 |
| 3 – Wheelers (2/4-stroke) (Vehicles manufactured on and before 31st March, 2000) |
4.5 | 9,000 |
| 3 – Wheelers (2-stroke) (Vehicles manufactured after 31st March, 2000) |
3.5 | 6,000 |
| 3 – Wheelers (4-stroke) (Vehicles manufactured after 31st March, 2000) |
3.5 | 4,500 |
| Four wheelers manufactured as per pre-Bharat Stage II emission norms | 3.0 | 1,500 |
| 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)
| Type of vehicle | Idle emission Limits | High idle emission limits | ||
|---|---|---|---|---|
| CO% | HC (n hexane equivalent) ppm | CO% | Lambda λ (RPM-2500±200) | |
| Compressed Natural Gas/Liquefied Petroleum Gas driven 4-wheeler manufactured as per Bharat Stage-IB norms | 0.3% | 200ppm | – | – |
| 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
| Method of Test | Maximum Smoke Density | |
|---|---|---|
| Light absorption coefficient (1/m) | Hartidge units | |
| 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 |
| 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 |