Today, following environmental rules is very important for any business or industry. Before starting and running a unit, certain approvals are required to ensure that the activity does not harm the environment. Two important approvals in this regard are:
- CTE (Consent to Establish)
- CTO (Consent to Operate)
These approvals are given by the State Pollution Control Board (SPCB), such as the Uttar Pradesh Pollution Control Board (UPPCB).
1. About CTE and CTO
What is CTE (Consent to Establish)?
CTE is the first permission required before starting any setup.
It means:
You are asking the government, “Can I set up this unit at this place?”
The department checks:
- Location of the unit
- Type of activity
- Pollution possibility
- Proposed pollution control system
If everything is acceptable, CTE is granted.
Example:
- If you want to start a rice mill, you must take CTE before installing machines
- If you plan to set up a piggery farm on a commercial scale, you should apply for CTE first
- If someone is opening a small factory, CTE is required before construction
2. What is CTO (Consent to Operate)?
CTO is the second permission, required after setup is complete but before starting work.
It means:
You are saying, “My unit is ready, now allow me to start operations.”
The department checks:
- Whether pollution control systems are installed
- Whether rules are being followed
- Whether emissions/waste are within limits
Only after CTO, the unit can legally start working. Example:
- Your rice mill is ready with machines installed – Now apply for CTO before starting production
- Your piggery farm sheds and waste system are ready – Take CTO before starting operations
- A hotel or hospital must get CTO before starting services
3. Who Gives These Approvals?
These approvals are given by the State Pollution Control Board (SPCB)
For example, in Uttar Pradesh, it is UPPCB (Uttar Pradesh Pollution Control Board)
4. Why are CTE and CTO Important?
- To control pollution (air, water, waste, noise)
- To ensure safe and sustainable business operations
- To avoid legal problems
5. Legal Framework
CTE and CTO are governed by the following legislations:
- The Water (Prevention and Control of Pollution) Act, 1974
- The Air (Prevention and Control of Pollution) Act, 1981
These Acts empower Pollution Control Boards to regulate industrial activities and ensure that emissions and discharges remain within prescribed limits.
6. When are CTE and CTO Required?
Consent to Establish (CTE)
CTE is required at the planning stage, prior to:
- Commencement of construction activities
- Installation of plant and machinery
- Development of industrial infrastructure
It ensures that environmental safeguards are integrated into the project design itself.
Consent to Operate (CTO)
CTO is required after the unit is established but before operations begin, i.e.:
- When construction is completed
- Machinery is installed
- Pollution control systems are in place
Only after obtaining CTO can the unit legally commence production or operations.
7. Applicability: Who Requires These Consents?
CTE and CTO are required by entities, whose activities may generate pollution, including: 7.1 Industrial Units
- Manufacturing industries
- Processing units
- Mining and extraction activities
7.2 Commercial Establishments (as applicable)
- Hotels and resorts
- Hospitals and healthcare facilities
- Large construction projects
- Warehousing units handling hazardous materials
7.3 Agro-Based and Rural Enterprises
- Dairy farms
- Piggery and poultry farms
- Food processing units
- Rice mills and similar activities
The requirement depends on the pollution potential, and units are classified into categories such as Red, Orange, Green, and White.
8. Validity and Renewal
- CTE is generally valid for the period required to establish the project.
- CTO is granted for a specific duration (typically 1 to 5 years depending on category).
CTO must be renewed periodically, failing which operations become non-compliant.
9. Compliance Process Flow
The typical compliance sequence is as follows:
1. Project planning and feasibility
2. Application for Consent to Establish (CTE)
3. Setting up of plant and installation of pollution control systems
4. Application for Consent to Operate (CTO)
5. Commencement of operations after approval
10. Consequences of Non-Compliance
Operating without obtaining CTO or violating consent conditions may result in:
- Closure notices issued by the Pollution Control Board
- Financial penalties
- Disconnection of electricity and water supply
- Legal action under environmental laws
11. Documents Required for CTO – Consent to Operate 30–45 days
Issued by: State Pollution Control Board
For how many years is required (Red, Orange and Green Category)
1. Copy of CTE (Consent to Establish)
2. PAN & Aadhaar of proprietor / directors
3. Certificate of Incorporation / Partnership Deed
4. Udyam Registration
5. Land documents / Lease deed
6. Approved Building Plan
7. Process Flow Chart
8. Details of:
-
- Raw materials
- Finished goods
- Water consumption
- Power load
9. Details of Pollution Control Measures:
-
- ETP / STP details
- Chimney height calculation
- DG set details
10. Water & Air pollution control diagram
11. Hazardous waste details (if applicable)
12. Latest electricity bill
13. CA certificate for investment (sometimes required)
12. Documents Required for Building Map Approval 30–45 days
Issued by: Chief Inspector of Factories / Labour Department
1. Form-1 (Application)
2. Site Plan
3. Detailed Building Plan (signed by licensed architect)
4. Process Description
5. Machinery layout
6. Land ownership documents
7. Stability Certificate
8. NOC from Local Authority
9. Fire NOC (in some cases)
10. Details of workers proposed
11. Power load details
Approval is mandatory before installation of machinery.
12. Documents required for Fire NOC (Post Construction) 15–30 days
Issued by: State Fire Department
1. Application Form
2. Approved Building Plan
3. Completion Certificate from Architect
4. Fire Safety System Installation Certificate
5. Layout showing:
-
- Fire exits
- Fire extinguishers
- Hydrant system
- Staircases
6. Structural Stability Certificate
7. Electrical Load Sanction Letter
8. Photographs of installed fire equipment
9. Ownership documents / Lease deed
10. Previous Fire NOC (if renewal)
Fire department will conduct physical inspection before issuing NOC.
13. Documents required for Factory License 15–30 days Also issued under Factories Act, 1948
1. Approved Building Plan
2. Application Form (Form 2 / State specific)
3. Directors / Occupier details
4. Board Resolution appointing Occupier
5. Process details
6. Worker strength details
7. Fee payment receipt
8. Fire NOC
9. CTO (sometimes required before final license)
Practical Flow (Very Important)
As a consultant, correct sequence should be:
1. Land Use Verification
2. CTE from Pollution Board
3. Building Plan Approval (Factories Act)
4. Construction Completion
5. Fire NOC
6. CTO
7. Factory License
8. Start Production
If sequence is wrong → compliance issues arise.


