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A Pollution Under Control Certificate (PUCC) is a government-issued document stating that the emissions released by your vehicle are within the limit specified under the applicable law. According to the Motor Vehicles Act, 1988, every vehicle (except EVs) in the country is required by law to have this document to avoid penalties and ensure proper adherence to the law.
A Pollution Under Control Certificate in Delhi carries the following key details: Vehicle details: The details of the vehicle, such as make, model, vehicle registration number, etc.
Note: In case a vehicle fails to pass the emission test, a rejection slip is issued instead of a PUCC. The vehicle has to go for a re-test within the mentioned timeline.
PUCC holds a significant place and below are the prime reasons clarifying its importance:
The Pollution Under Control Certificate (PUCC) is a mandatory document under the Motor Vehicles Act, 1988 and it works as per the regulations, limits and rules determined under the Central Motor Vehicles Act, 1989.
However, in addition to this, there are several other laws as well that play a vital role in PUCC and they are:
To get a PUCC in New Cars, the vehicle has to undergo an emission test at the specified centers. Once the pollution emission test is completed, the vehicle owner can get the certificate either online or offline.
Parivahan offers a simple and secure interface for individuals to get a PUCC online.
Here are the simple steps to follow:
Here are the simple steps to get the PUCC offline in New Cars:
For examination of the vehicle, the drivers can visit the following locations:
Park+ is a simple online platform offering vehicle owners the facility to check the authorised PUCC centres in New Cars. To check the nearest pollution testing centres in New Cars, perform the following steps:
Based on the fuel type, the emission test differs. Below are the different tests conducted for the vehicles:
| Fuel Type | Test | Description |
|---|---|---|
| Petrol | Carbon Dioxide (CO2) | To examine CO2 levels. |
| Hydrocarbon | To determine the level of unburnt fuel. | |
| Carbon Monoxide (CO) | To assess air intake and fuel combustion efficiency. | |
| Diesel | Idling Carbon Monoxide (CO) | To determine the emissions of the vehicle parked with the engine on. |
| Smoke Density | To measure black smoke output for understanding the engine condition and fuel combustion. | |
| LPG/CNG | Carbon Monoxide (CO) | To understand fuel combustion efficiency and air intake. |
| Hydrocarbon | For knowing the fuel combustion level of the vehicle. | |
| System Soundness | To check if there are any leakages in the CNG/LPG system. |
PUCC renewal is an important process and should not be neglected at all. New vehicles, after a year of registration and old vehicles, after 6 months, are required to get the pollution certificate renewed without any delay.
For PUCC renewal in New Cars, the vehicle owners need to get the vehicle emission test done. To do so, take the following steps:
Pro tips: - Check if the pollution certificate has a QR. - Ensure all the details are clearly printed on the certificate, such as validity, PUC serial number, emission readings, etc. - You can also download the PUCC certificate online from Parivahan.
The PUC Certificate in New Cars needs to be renewed after the completion of its validity. The validity varies depending on the age of the vehicle - new cars, old cars and the test readings as well.
The validity and renewal rule might vary depending on the state; however, the standardised format defines the following:
| Case | Validity |
|---|---|
| New Vehicles (BS-VI compliant) | For 1 year, after which they need to get a PUC Certificate. |
| Other Vehicle | After every 6 months. |
| If vehicle emissions are higher or closer to a permissible limit during a test | PUCC is issued for a shorter period - say, for 3 months. |
*The validity may vary depending on the state.
If you are not aware of the PUCC's validity, take action to check it instantly. The validity can be checked instantly through online or offline ways.
Below are the steps involved in each case to check the certificate’s validity:
The PUC Certificate expiry by number plate can be done easily through the Parivahan portal. To check the validity, follow these steps:
This is the simplest method of checking the validity date. For this, one should have a printed copy of the certificate. The vehicle owners can check the validity of the certificate by checking the certificate.
Under the Pollution Control Law, there are certain emission criteria that must be followed by the vehicle. Below are the permissible emission standards based on the fuel types for different vehicles:
| Type of vehicle | Carbon Monoxide (in %) | Hydrocarbon (in PPM) |
|---|---|---|
| BS6 and BS4 four-wheelers (CNG/LPG) | 0.3 | 200 |
| BS6 and BS4 four-wheelers (Petrol) | 0.3 | 200 |
| λ (lambda) | 1±0.03 or declared by the manufacturer | 1±0.03 or declared by the manufacturer |
| Type of vehicle | Carbon Monoxide (in %) | Hydrocarbon (in PPM) |
|---|---|---|
| BS6 two-wheelers/three-wheelers (CNG/LPG) | 0.5 | 500 |
| BS6 two-wheelers/three-wheelers (Petrol) | 0.5 | 500 |
| Type of test | Light Absorption Coefficient | Maximum Smoke Density in Hartridge Units |
|---|---|---|
| Free acceleration test of BS4 diesel vehicles (naturally aspirated and turbocharged engine) | 1.62 | 50 |
| Free acceleration test of pre-BS4 diesel vehicles (naturally aspirated and turbocharged engine) | 2.45 | 65 |
| Type of vehicle | Carbon Monoxide (in %) | Hydrocarbon (in PPM) |
|---|---|---|
| BS2 four-wheelers (Petrol) | 3 | 1,500 |
| BS3 four-wheelers (Petrol) | 0.5 | 750 |
| Two/four-stroke two/three-wheelers manufactured on or before March 31, 2000 | 4.5 | 9,000 |
| Two-stroke two/three-wheelers manufactured after March 31, 2000 | 3.5 | 6,000 |
| Four-stroke two/three-wheelers manufactured after March 31, 2000 | 3.5 | 4,500 |
*The permissible emission standard might vary depending on the state.
Though PUCC is mandatory for all vehicles in India, there are some exceptions. The electric vehicles and new vehicles are generally exempt from having a PUCC.
Electric Vehicles (EVs): These vehicles produce zero tailpipe emissions and thus, these vehicles are not required to have a Pollution Under Control Certificate (PUCC). New vehicles: New vehicles do not need to have a PUCC until 1 year from the date of registration.
Some smart tips can prevent motorists from receiving heavy fines. A few of the must-follow tips in consideration of the PUC Certificate are:
PUC Certificate in New Cars is an important document that every vehicle owner should have, especially when driving or riding a vehicle. This document reflects the vehicle’s health, prevents New Cars eChallan and helps vehicle owners enjoy a smooth car insurance renewal process. However, the process to get a PUCC renewal certificate is simple and every motorist should responsibly comply with the laws relating to it.

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Yes, PUCC is mandatory for all vehicles in India, including two-wheelers.
The vehicle emission test takes only a couple of minutes, say 5-10 minutes.