Source: DTE
Context: The Central Pollution Control Board (CPCB) has introduced a new ‘Blue Category’ of industries under Essential Environmental Services (EES), controversially including Waste-to-Energy (WTE) incinerators, previously classified as highly polluting Red Category industries.
About Blue Category of Industries:
- What is the Blue Category of Industries?
- The Blue Category was introduced by the CPCB to classify sectors that are essential for environmental management but are relatively low on pollution—however, this has sparked debate.
- Key Features of Blue Category Industries:
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- Recognized as part of Essential Environmental Services (EES).
- Granted extended validity of ‘Consent to Operate’ (CTO)—up to 2 years.
- Intended for projects that produce minimal hazardous waste.
- Expected to align with circular economy goals.
- Industries Included: Sewage Treatment Plants (STPs), Composting units, Biogas plants, Material Recovery Facilities (MRFs), and Waste-to-Energy (WTE) incinerators.
- Colour-Based Industrial Classification Methodology:
The MoEFCC, in collaboration with CPCB, introduced colour-coded industrial categorisation to guide zoning, surveillance, and pollution control.
- Classification Basis:
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- Pollution Index (PI): Ranges from 0 to 100
- PI 0–20: White (least polluting)
- PI 21–40: Green
- PI 41–59: Orange
- PI 60–100: Red (most polluting)
- Pollution Index (PI): Ranges from 0 to 100
- Establishment:
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- Launched under the ‘Re-categorization of Industries’ framework in 2016.
- Empowered by the Environment (Protection) Act, 1986.
- CPCB and State Pollution Control Boards (SPCBs) have authority to classify industries.
- Procedural Criteria for Blue Category Inclusion:
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- No generation of hazardous waste or toxic emissions.
- Must promote circular economy (reuse, recycle, resource efficiency).
- Must align with Sustainable Waste Management Rules, 2016.









