CPCB's revised emission standards for gensets in Delhi combat air pollution, enforce stricter limits, and promote a healthier environment.


In a bid to combat the growing menace of air pollution and its adverse effects on public health, the Central Pollution Control Board (CPCB) has introduced revised emission standards for gensets. Gensets, commonly used as backup power sources in various establishments, are a significant contributor to air pollution. This law blog aims to explore the CPCB's revised emission standards for gensets and the implications they have on the environment and society.


India has been facing numerous challenges in tackling air pollution issue, and one significant contributor to the problem has been the emission from diesel-powered gensets. These gensets are extensively used during power outages and as backup power sources in residential, commercial, and industrial establishments.

Revised Emission Standards:

Realizing the urgency to address this issue, the CPCB, in consultation with relevant stakeholders, has revised the emission standards for gensets operating in Delhi. The revised standards impose stricter limits on emissions, particularly targeting the harmful pollutants emitted by these generators.

  1. Particulate Matter (PM): The revised standards require gensets to adhere to stringent limits for particulate matter emissions. Particulate matter consists of tiny solid and liquid particles suspended in the air, which can penetrate deep into the respiratory system and cause various health problems.
  2. Nitrogen Oxides (NOx): Gensets are also a significant source of nitrogen oxide emissions, which contribute to the formation of ground-level ozone and fine particulate matter. The revised standards aim to reduce NOx emissions from gensets, thereby improving air quality and minimizing the adverse health effects associated with these pollutants.
  3. Noise Pollution: Apart from addressing air pollution concerns, the revised standards also include provisions to regulate the noise emissions from gensets. Noise pollution is a growing concern in urban areas, and gensets are known to be a major contributor to noise levels. The new standards set limits on permissible noise levels to ensure a more peaceful and healthier environment for residents.

Implications and Benefits:

The implementation of the CPCB's revised emission standards for gensets in Delhi is expected to have several positive implications:

  1. Improved Air Quality: By reducing the emissions of particulate matter and nitrogen oxides, the revised standards will contribute to improving the air quality in Delhi. This, in turn, will have a direct positive impact on public health, reducing the incidence of respiratory ailments and other pollution-related health issues.
  2. Noise Reduction: The inclusion of noise pollution regulations will help in curbing excessive noise levels generated by gensets. This will create a more peaceful and conducive living and working environment for residents and workers in various establishments.
  3. Sustainable Development: The revised emission standards align with the broader goal of sustainable development. By encouraging the adoption of cleaner technologies and practices, the CPCB aims to foster a more environmentally conscious approach in the use of gensets, promoting a transition towards greener alternatives and reducing reliance on fossil fuels.


In accordance with the Environment (Protection) Act of 1986, the Ministry of Environment, Forestry, and Climate Change (MoEF&CC) and the Central Pollution Control Board (CPCB) have published GSR 804(E), dated 3 November 2022, notifying the public of Revised Emission Standards for Gensets. According to the notification, the CPCB is the "Nodal Agency" tasked with ensuring adherence to the "System and Procedure," coordinating type approval and conformity of production (COP) test activities, resolving conflicts, and resolving technical issues arising during the implementation of these regulations. In this regard, the CPCB has determined that all cases involving type approvals and conformity of production tests (failure, extension, exemption, etc.) would be subject to an instant processing charge levied against the applicants. The following information pertains to the circumstances that need payment:

  1. Type Approval application for emission compliance of Genset engines and Retrofit Emission Control Devices (Petrol & Kerosene, Diesel, and all existing and incoming gaseous fuels. (Up-to 5 models) – Rs. 20,000/-
    • For every additional Model beyond 5 Nos – Rs. 5,000/-
  1. Type Approval application for noise compliance of Genset engines (Petrol & Kerosene, Diesel, and all existing and incoming gaseous fuels). (Up-to 5 models) – Rs. 10,000/-
    • For every additional Model beyond 5 Nos – Rs. 5,000/-
  1. Change of Certification Agency – Rs. 10,000/-
  2. Subsequent addition of each Engine model – Rs. 5,000/-
  3. Subsequent addition of each Genset model – Rs. 5,000/-
  4. Failed COP for which root cause analysis and on field compliance required – Rs. 50,000/
    • Note: This fee is additional to Bank Guarantee to be submitted as security for recall
  1. Extension of Type Approval to a new unit per model – Rs. 5,000/-
  2. Extended time for COP per model – Rs. 5,000/-
  3. Exemption of COP (up-to 5 models) – Rs. 5,000/-
    • For every additional Model beyond 5 Nos – Rs. 1,000/-


The Central Pollution Control Board's revised emission standards for gensets signify a significant step towards combating air pollution and promoting a healthier environment. By imposing stricter limits on particulate matter, nitrogen oxide emissions, and noise pollution, these standards aim to protect public health and contribute to sustainable development. It is crucial for all stakeholders, including genset manufacturers, operators, and users, to ensure compliance with these standards and actively contribute to the collective effort of improving air quality in the country.


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