Lok Sabha Question No. 5797 (UNSTARRED), answered on 2026-03-30
Subject: Emission Standards for Diesel Generator Sets
Ministry: ENVIRONMENT, FOREST AND CLIMATE CHANGE
Asked by: Shri Nalin Soren

## GOVERNMENT OF INDIA

## MINISTRY OF ENVIRONMENT, FOREST AND CLIMATE CHANGE

## LOK SABHA UNSTARRED QUESTION NO. 5797

TO BE ANSWERED ON 30.03.2026

## Emission Standards for Diesel Generator Sets

## 5797. SHRI NALIN SOREN:

Will the Minister of ENVIRONMENT, FOREST AND CLIMATE CHANGE be pleased to state:

- (a) the number of affected Diesel Generator (DG) sets across various States and Union Territories  that  have  adopted  the  mandated  emission-control  measures,  such  as installation  of  Retrofit  Emission  Control  Devices  (RECD)  or  dual-fuel  conversion, State/UT-wise;
- (b)  whether  any  Consent  to  Operate  (CTO)  or  permissions  have  been  suspended  or revoked due to non-compliance with Direction No. 76 issued by the Commission for Air Quality Management (CAQM); and
- (c) the details of action plan formulated for the non-compliant DG sets, State/UT-wise?

## ANSWER

MINISTER  OF  STATE  IN  THE  MINISTRY  OF  ENVIRONMENT,  FOREST  AND CLIMATE CHANGE (SHRI KIRTI VARDHAN SINGH)

(a) to (c)

Retro-fit  Emission  Control  Devices  (RECDs)  are  required  to  be  installed  on  diesel generator sets up to 800 kilowatt (kW) that comply with emission norms notified prior to 2023 and have completed five years from the date of engine manufacturing. These devices are installed to reduce Particulate Matter (PM) emissions as per the System and Procedure for Emission Compliance Testing of RECD for Diesel Power Generating Set Engines, issued by the Central Pollution Control Board (CPCB) on 01.02.2022. Further, RECDs and Dual Fuel Kits (DFKs) are required to be installed on diesel generator sets to comply with  the  order  of  the  Hon'ble  National  Green  Tribunal  (NGT)  dated  06.08.2019  in Original Application No. 681/2018.

The Commission for Air Quality Management (CAQM) mandated Direction No. 76 dated 29.09.2023, read with Amendment dated 22.02.2024 and 11.12.2024, for adoption of the specified schedule for regulated operations of Diesel Generator (DG) sets as a backup against regular power supply failures across all sectors in the National Capital Region (NCR)  including  Industrial,  Commercial,  Residential  and  Office  establishments  etc. Accordingly, any DG sets located in the region are required to comply with Direction No. 76.

For  the  purpose  of  enforcement  of  the  directives,  along  with  State  Pollution  Control Boards (SPCBs) of NCR States / Delhi Pollution Control Committee (DPCC) / Central Pollution Control Board (CPCB), the Commission carries out incognito inspections from time to time, and any observed case of non-compliance with respect to DG sets is placed before an Enforcement Task Force (ETF) constituted by CAQM for appropriate action such as sealing of DG sets, issuance of Show Cause Notice (SCN) etc. as per the CAQM Act. CAQM since its inception to 24.03.2026 have inspected a total of 5670 DG sets through its Flying Squads. The Commission has also issued SCN/Notice to 948 units which covers 1272 DG sets. Further, based on the non-compliances observed, a total of 2279 DG sets have been sealed in 1551 units. Besides, through Direction No. 87, dated 02.01.2025, the Commission has authorized the Member  Secretaries  of  NCR  States  /  DPCC  for  filing  complaints/prosecution  before jurisdictional Judicial Magistrates if gross violations of directions/orders are observed in their respective jurisdiction. of Retrofit Emission  Control Devices (RECD)  or  dual-fuel  conversion  and

Concerned State/UTs Pollution Control Boards are responsible for verifying installation for formulation of action plan for non-compliant DG Sets.

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