All about PUC Certificate & Bharat Stage for bikes in India

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pollution under control certificate & bharat stage emission standards in motorcycles in india
27 June 2024

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Long story short: Know how to keep your two-wheeler compliant with the Pollution Under Control (PUC) Certificate & for Bharat stage emission norms & standards in India.


Gone are the days when we could see motorcycles or scooters emitting thick smoke from the exhaust pipes while revving. Now, the times have changed with an ever-increasing number of vehicles, and so are the pollution levels in the major cities in India. One of the main reasons behind this is the emissions from all vehicles, including motorcycles and scooters. One thing is for sure: the government of India cannot limit the number of vehicles, which is out of the equation. The appropriate step is to control the emissions by introducing stricter norms and implementing new technologies within the vehicles.

So, the Government of India has recently jumped from BSIV TO BSVI, considering alarming pollution levels in major cities across India. So everyone can clearly understand the situation right now. Vehicles are increasing daily on our roads. So, this article delves deep into the nuances of the Pollution Under Control (PUC) Certificate and Bharat Stage emission standards and their importance in India. Here, we will also detail what we, as motorcycle or scooter owners, should know about and do environmentally friendly things on Earth. So, let’s start.

What is the Pollution Under Control (PUC) Certificate in India?

A Pollution Under Control (PUC) Certificate is a mandatory document for all vehicles in India, including motorcycles and scooters. It is issued by authorised emission testing centres throughout the country. It validates that a vehicle’s emissions are within the prescribed pollution control norms of the Government of India.

PUC certificate sample in India
PUC certificate sample in India

Importance of PUC Certificate

The PUC certificate is essential for ensuring that a vehicle’s emissions are within the permissible limits set by the government. It helps reduce air pollution and maintain environmental standards. The Motor Vehicle Act of 1988 mandates that every vehicle must have a valid PUC certificate to be legally driven on Indian roads.

Obtaining a PUC Certificate

Authorised Centers

PUC certificates are issued by authorised emission testing centres located throughout the country. These centres can be found at gas stations or independent testing facilities. The testing process involves analysing the exhaust emissions by placing a testing device inside the vehicle’s exhaust pipe.


The cost of obtaining a PUC certificate is relatively low, ranging from Rs. 80 to Rs. 100, depending on the type of vehicle and fuel used.

Online and Offline Methods

You can obtain a PUC certificate online through the Parivahan portal or by visiting the nearest emission testing station offline. The online process has been simplified, allowing vehicle owners to download the certificate quickly.

Validity of Pollution Under Control (PUC) Certificates

The validity of a PUC certificate varies based on the vehicle’s age and emission standards. For new vehicles, the certificate is valid for one year from the registration date for all BS stages. For BS-IV and BS-VI vehicles, the validity period for renewal is one year, while for BS-II and BS-III, it is six months. It is essential to renew the certificate before it expires, and there is a seven-day grace period.

Details present in two wheeler PUC Certificate

Basic Information

The PUC certificate includes essential details about the vehicle and its owner:

PUC Certificate Registration Number: A unique identifier for the certificate.

Chassis Number: The vehicle’s chassis number is recorded to ensure the certificate is linked to the correct vehicle.

Vehicle Registration Number: This is used to pull up all necessary details about the vehicle during the emission test.

Emission Test Results

The certificate contains the results of the emission test, which include:

Emission Levels: The levels of pollutants emitted by the vehicle, such as carbon monoxide (CO), hydrocarbons (HC), etc are measured and recorded.

Permissible Limits: The certificate specifies the permissible emission levels as per Rule 115 (2) of The Motor Vehicles Act, 1988.

Validity Period

Initial Validity: For new vehicles, the certificate is valid for one year.

Renewal Period: After the first year, the certificate must be renewed every six months.

Issuing Authority

The certificate is issued by authorized emission testing centers approved by the Pollution Control Board.

Additional Information

PUC Details: The certificate includes detailed information about the emission test and the results.

Vehicle Type and Fuel Type: The type of vehicle (two-wheeler) and the type of fuel it uses (petrol, diesel, etc.) are specified.

What is the Bharat Stage (BS) emission standard?

The Bharat Stage (BS) emission standards are regulations the Government of India sets to control the output of air pollutants from internal combustion engines, including motorcycles and scooters. These standards have evolved, becoming more stringent to reduce air pollution and protect the environment. This report compares the emission limits for motorcycles and scooters under BS2, BS3, BS4, and BS6 norms.

Different types of Bharat Stage (BS) Emission Standards or norms in India

Bharat Stage emission limits table for two wheelers in India
Bharat Stage emission limits table for two wheelers in India

BS2 Emission Standards

The BS2 norms were introduced in 2001 and marked a significant step towards reducing vehicular emissions in India. The permissible emission limits for motorcycles and scooters under BS2 are as follows:

Carbon Monoxide (CO): 2.2 g/km
Hydrocarbons + Nitrogen Oxides (HC+NOx): 0.5 g/km
Respirable Suspended Particulate Matter (RSPM): 0.08 g/km

BS3 Emission Standards

BS3 norms were first rolled out in 2005 and became mandatory nationwide by 2010. These standards further tightened the emission limits:

Carbon Monoxide (CO): 2.3 g/km
Hydrocarbons (HC): 0.20 g/km
Hydrocarbons + Nitrogen Oxides (HC+NOx): 0.35 g/km
Respirable Suspended Particulate Matter (RSPM): 0.05 g/km

BS4 Emission Standards

BS4 norms were implemented nationwide in April 2017. These standards introduced more stringent limits on emissions:

Carbon Monoxide (CO): 1.0 g/km
Hydrocarbons (HC): 0.1 g/km
Hydrocarbons + Nitrogen Oxides (HC+NOx): 0.18 g/km
Respirable Suspended Particulate Matter (RSPM): 0.025 g/km

BS6 Emission Standards

BS6 norms were implemented from April 1, 2020, skipping the BS5 stage. These standards are significantly stricter and require advanced technologies to meet the emission limits:

Carbon Monoxide (CO): 1.0 g/km
Hydrocarbons (HC): 0.10 g/km
Nitrogen Oxides (NOx): 0.06 g/km
Non-Methane Hydrocarbons (NMHC): 0.068 g/km
Particulate Matter (PM): 0.0045 g/km

Month & year of implementation of different bharat stage emission standards for two wheelers in India
Month & year of implementation of different bharat stage emission standards for two wheelers in India

Explanation of Emission Limits in BS emission standards

  1. Carbon Monoxide (CO): A colourless, odourless gas that is harmful when inhaled in large amounts. It is produced by the incomplete combustion of fuel.
  2. Hydrocarbons (HC): Organic compounds contribute to smog formation and harm human health.
  3. Hydrocarbons + Nitrogen Oxides (HC+NOx): A combination of hydrocarbons and nitrogen oxides contributes to ground-level ozone and smog formation.
  4. Nitrogen Oxides (NOx): Gases that contribute to the formation of smog and acid rain and can cause respiratory problems.
  5. Non-methane hydrocarbons (NMHC): Hydrocarbons, excluding methane, significantly contribute to ozone formation.
  6. Particulate Matter (PM): Tiny particles that can penetrate the respiratory system and cause health issues.
  7. Respirable Suspended Particulate Matter (RSPM): Small particles can be inhaled and cause respiratory problems.

Technological improvements in motorcycles & scooters across BS emission standards

BS4 Technologies

Motorcycles and scooters complying with BS4 standards typically employ simpler engine technologies, such as carburettors and older emission control systems. The focus was primarily on meeting the emission norms rather than optimising fuel consumption.

BS6 Technologies

The transition to BS6 norms required manufacturers to adopt more sophisticated technologies, including:
Fuel Injection Systems: These are for precise fuel delivery and better combustion.
Advanced Engine Management Systems: To optimise engine performance and reduce emissions.
Enhanced Catalytic Converters: To effectively reduce harmful pollutants.

Impact on fuel and costs across BS emission standards

Fuel Quality

BS6 engines use fuel with a significantly lower sulphur content (10 PPM) than BS4 fuel (50 PPM). This reduction in sulphur content helps reduce harmful emissions and pollutants.

Manufacturing Costs

Implementing advanced technologies in BS6 vehicles has increased manufacturing costs, resulting in a price hike for consumers. However, these advancements also contribute to better fuel efficiency and reduced emissions.

FAQ about PUC certificate and BS emission standards

Can we obtain a PUC certificate online?

No, PUC cannot be obtained online. You need to take the vehicle physically and test it. After that, a certificate can be downloaded from the Parivahan website if required.

Do I need to obtain a pollution certificate for a new motorcycle?

Yes, you need a PUC Certificate for your new motorcycle. When you buy the vehicle, the motorcycle dealer typically provides the pollution certificate, valid for one year.

Which website can you download the PUC certificate online in India?

To download the PUC certificate online, visit this website –

What documents do I need to get my PUC certificate?

Only your vehicle is required. The test centre will use its registration number to find everything else it needs.

How to Find RTO-approved PUC Centres?

Visit this link to find the RTO-approved PUC Centres in India.

Should we carry the PUC certificate while driving the motorcycle?

You must carry a copy of the PUC Certificate (soft or hard copy) while driving the vehicle. You can get a fine for failing to produce the PUC Certificate during a general inspection.

What are the costs for the PUC certificate for motorcycles and the renewal period for BSII and BSIII for motorcycles?

The cost of the PUC certificate for BSII and BSIII is Rs 80. The renewal period is 6 months.

What are the costs for the PUC certificate for BS IV & BSVI for motorcycles and the renewal period?

The PUC certificate for BS IV costs Rs 80, and for BSVI, it costs Rs 100. The renewal period is 1 year for both.

Which type of motorcycles and scooters need a PUC certificate?

All motor vehicles with internal combustion engines need to have a PUC certificate. Electric vehicles are exempt from this requirement as they do not emit pollutants.

What happens if my motorcycle or scooter fails the PUC test?

You need to fix the problems with your vehicle and then re-take the test.

What are the penalties for not having a valid PUC certificate?

Not having a valid PUC certificate can result in significant fines. The penalty for the first offence is Rs. 1,000, which increases to Rs. 2,000 for subsequent violations. Please note that these rates change depending on the state where you reside.

Why were there no Bharat Stage 5 emission norms in India?

The main reason was that The Government of India has noticed rising pollution, especially in the metros, over the years. As it took over a decade to launch BS4 in the country, the government decided to skip one emission norm (BS5). The Indian government gave ample time to fix the issues and develop new engines for the norms BS6, which are drastically lower than previous BS4 emission norms.

  1. PUC Certificate website
  2. PUC Certificate Download website
  3. PUC Centre List
  4. SIAM Emission Norms
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If you have any other doubts or queries about the PUC certificate in India or Bharat stage emission norms or standards, email us at or share your doubts or opinions in the comments section below. We are always eager to help and assist you. Also, here are several social media platforms of Bikeleague India to raise your suspicions.

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