Skip to Content

How to Apply for Pollution NOC (CTE/CTO): Step-by-Step

The SPCB consent workflow for new and running units.
23 September 2026 by
How to Apply for Pollution NOC (CTE/CTO): Step-by-Step
Gaurav Kumar
Environment, Waste & EPRStep-by-Step3 min read
The short answer

To obtain pollution consent, determine your industry category, apply for Consent to Establish on the state consent portal with project details and fees before construction, undergo inspection, build the unit with pollution controls as per CTE conditions, then apply for Consent to Operate before starting production, and renew it before expiry.

FirstConsent to Establish
ThenConsent to Operate
PortalState consent management system

Step 1: Category check

Use the Red, Orange, Green, White classification.

Step 2: CTE

  1. Apply online with site plan, process and pollution controls.
  2. Pay fee based on investment.
  3. Inspection and grant.

Step 3: Build as approved

Install ETP, APC equipment and waste handling as per conditions.

Short on time? Leegal can handle Pollution NOC for you, end to end.

Get expert help →

Step 4: CTO

Apply before commissioning; inspection verifies compliance.

Step 5: Renewal

Renew CTO before expiry and file environmental statements.

Frequently asked questions

Can CTE and CTO be combined?

Some states offer combined consent for certain categories.

Who signs the application?

The occupier or authorised person.

Is an environmental clearance different?

Yes. EC under EIA rules applies to specified large projects in addition to consent.

What if consent is refused?

Appeal to the appellate authority under the Acts.

Let Leegal handle your Pollution NOC

Documentation, filing and follow-up by a dedicated expert, so you can focus on running your business.

  • Dedicated point of contact
  • Transparent pricing
  • Pan-India service
Start nowCall +91 95721 91163

Keep reading

Plastic EPR Registration Process on the CPCB Portal
Walking through CPCB's centralised EPR portal.