The Kerala State Pollution Control categorized industries which are not included in the Red/ Orange/Green category based on the pollution creating potential. The following are the listed categories:
| Item Categorized | Category |
| Metal pipe bending unit without welding, heat treatment and painting | White |
| Restaurants Seating capacity upto 36 seats | Green |
| E-Waste refurbishing unit | White |
| Collection and disposal of Iron barrel (Pressing only) (Except hazardous chemicals by CPCB guidelines) | White |
| Dog farm | Green |
| Copra drying unit using dryer | Green |
| Cardamom drying unit | Green |
| Steel godown Storage capacity > l0 T | Green |
| Battery Water preparation unit | Green |
| RO Plant | Green |
| M Sand, Rock dust, Rock Sand godown Storage capacity >10 T Storage capacity <10 T | Green White |
| E-Waste dismantling Unit | Orange |
| Coconut processing unit | Orange |
| Autoclaved fly ash bricks | Orange |
| Common Sewage Treatment Plant | Red |
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