Date of Notification: October 9, 2025
Reference: CP-11/16/2025/IPC-VI-HQ-CPCB-HQ
The Central Pollution Control Board (CPCB) has issued a major new directive under Section 18(1)(b) of the Air (Prevention & Control of Pollution) Act, 1981, targeting air-polluting industries operating in NCR-Delhi.
This latest move aims to strengthen self-regulatory compliance through real-time monitoring using Online Continuous Emission Monitoring Systems (OCEMS) and PTZ cameras.
The directive mandates that industries in the Food & Food Processing, Textile, and Metal Processing sectors install OCEMS and PTZ cameras and connect them to the CPCB and respective SPCB/PCC servers by December 31, 2025.
Why the Directive Was Issued
Delhi-NCR continues to face severe air pollution challenges every winter. To reduce manual inspections and bring transparency in emission control, CPCB is focusing on automated and continuous pollution monitoring through self-regulatory mechanisms.
The new order reinforces earlier directives issued between 2015 and 2019, which required high-polluting industries to install online effluent and emission monitoring systems. However, verification conducted by CPCB in 2025 revealed that out of 2,361 air-polluting units, only 351 had connected their OCEMS with CPCB servers leaving over 2,000 non-compliant industries.
This prompted the Board to issue fresh directions to the State Pollution Control Boards (SPCBs) and Pollution Control Committees (PCCs) of Delhi, Haryana, Rajasthan, and Uttar Pradesh to ensure 100% compliance.
What Industries Are Required to Do
As per CPCB’s new directive, all industries in the specified sectors must take the following steps before December 31, 2025:
1. Install OCEMS (Online Continuous Emission Monitoring Systems)
- Textile & Food Processing Units:
Must install OCEMS for PM (Particulate Matter) monitoring in stacks attached to boilers or thermic fluid heaters. - Metal Processing Units:
Must install OCEMS for PM, SO₂, and NOx parameters in all furnaces using met-coke, LSHS, or low-sulfur oil.
Units not using these fuels must still monitor PM.
2. Install PTZ Cameras
- Textile & Food Units:
Cameras must capture the OCEMS port-hole and flue gas emissions from stacks. - Metal Units:
Cameras must monitor the fume extraction area and furnace feeding section for real-time visual compliance tracking.
3. Ensure Data Connectivity
All installed OCEMS and PTZ cameras must be connected with CPCB and concerned SPCB/PCC servers to transmit live data and video feeds continuously.
Reference Guidelines & Technical Updates
The order also highlights several key updates:
- Revised OCEMS Protocol (August 2025):
Industries must adhere to updated calibration and alert-generation standards via the new OCEMS portal. - OCEMS Product Certification:
The National Physical Laboratory (NPL), Delhi, has been designated as the national verification agency for OCEMS, ensuring equipment conforms to ISO 17065 and ISO 17025 standards. - New CPCB OCEMS Portal:
All industries must register and provide system details, analyzer info, and coordinates at https://cems.cpcb.gov.in.
Industries That Must Comply
The directive applies specifically to:
- Food & Food Processing Units
- Textile & Garment Units
- Metal & Furnace-Based Industries
These are identified as major air-polluting sectors contributing significantly to particulate emissions across NCR-Delhi.
How PT Ecological Services Can Help You Comply
With over 15 years of experience and 100+ OCEMS installations across India , PT Ecological Services offers complete, CPCB-compliant solutions from system design and installation to data connectivity and maintenance.
Our OCEMS Solutions Include:
1- Supply & installation of CPCB-approved OCEMS analyzers (PM, SO₂, NOx)
2-Integration with CPCB/SPCB servers for seamless data connectivity
3- Installation of PTZ camera systems for real-time visual monitoring and compliance tracking
4- Calibration, validation, and alert configuration as per the revised 2025 OCEMS protocol
5- Annual Maintenance Contracts (AMC) with 24/7 technical support and service assurance
Our goal is to simplify compliance, ensuring your industry meets every CPCB guideline without operational disruption.
Compliance Deadline: December 31, 2025
Industries operating in the above sectors must complete OCEMS and PTZ camera installation and connectivity with CPCB/SPCB servers by December 31, 2025.
Non-compliance may result in closure actions under the Air (Prevention & Control of Pollution) Act, 1981.
Let’s Make Compliance Easy
If you operate a Food, Textile, or Metal Processing Unit in NCR-Delhi, PT Ecological Services can help you meet the CPCB’s new requirements on time.
Contact Us Today:
+91 91750 17978 / +91 77569 79879
www.ptecologicalservices.com
service.tpr2@ptespl.com / official@ptespl.com