Consent to Establish (CTE) and Consent to Operate (CTO) — State Pollution Control Board Consent under the Water Act and Air Act
What CTE and CTO are, and who needs them
Under section 25 of the Water (Prevention and Control of Pollution) Act, 1974 and section 21 of the Air (Prevention and Control of Pollution) Act, 1981, no one may establish or operate an industry, operation or process that is likely to discharge sewage or trade effluent, or emit air pollutants, without the consent of the State Pollution Control Board. Consent to Establish (CTE, also called NOC) is taken before construction or installation begins; Consent to Operate (CTO) is taken after the plant is built and before production starts, and is renewed periodically. In Rajasthan both are issued by the Rajasthan State Pollution Control Board (RSPCB) through its online portal.
Which consent you need, how long it lasts and what it costs depend on the category of your industry. The Central Pollution Control Board's 2016 classification scores every industrial sector on a Pollution Index (air emissions, effluent, hazardous waste and resource use): Red for a score of 60 and above, Orange for 41 to 59, Green for 21 to 40, and White for 20 and below. White units are practically non-polluting and need only an intimation, not a consent. The Water Act also fixes a timeline: if the Board does not refuse a complete application within four months, consent is deemed granted on the conditions applied for.
You need CTE and CTO if you are setting up or running
- •A manufacturing unit of any size — chemicals, pharma, textiles processing, metal, food processing, plastics, paper, cement, stone crushing, brick kilns
- •A hospital or nursing home, hotel above the notified size, resort, or educational institution with hostels (sewage load)
- •Real estate and infrastructure projects that generate construction dust, sewage and have DG sets
- •Mining, quarrying, hot-mix plants, ready-mix concrete plants and automobile service stations
- •Any Red, Orange or Green category process on the CPCB list, whether or not it also needs Environmental Clearance
Categories, validity and what the Board looks for
| Category | Pollution Index | Consent validity | Typical units |
|---|---|---|---|
| Red | 60 and above | 5 years | Distilleries, dyeing and bleaching, tanneries, pharma bulk drugs, cement, refineries, power plants, foundries, large hospitals with incinerators |
| Orange | 41 to 59 | 10 years | Stone crushers, hot-mix plants, food and beverage processing with effluent, hotels above the notified size, automobile servicing, pharma formulations, printing with treatment |
| Green | 21 to 40 | 15 years | Small food units, saw mills, cotton spinning, cardboard, aluminium utensils, digital printing, most assembly units |
| White | Up to 20 | No consent; intimation only | Solar module assembly, cotton hosiery without dyeing, scientific instruments, PVC tray forming, electric lamp assembly |
Validity periods are those laid down in CPCB's directions to State Boards; individual states may issue shorter consents for specific units. The Board examines the site (distance from habitation, water bodies, forests), the water balance and effluent treatment (ETP/STP), air pollution control devices and stack heights, DG-set noise, hazardous and solid waste handling, and whether the project needs an Environmental Clearance first.
Documents required for CTE and CTO
CTE (before construction)
- •Application on the state Board portal with fee
- •Constitution documents, PAN, GST, Udyam / IEM
- •Land documents: sale deed, lease or allotment letter (RIICO), land-use conversion
- •Site plan and layout with green belt
- •Detailed project report: process flow, raw materials, products, capacity
- •Water balance: source, consumption, effluent quantity and treatment plan
- •Air emissions: fuel, boilers, DG sets, stack heights and control devices
- •Capital investment certificate from a CA (fee is based on it)
- •Environmental Clearance, where applicable
CTO (before operation / renewal)
- •CTE copy and compliance report on its conditions
- •Completion certificate of ETP/STP and APCD with design details
- •Stack and effluent monitoring reports from a NABL/MoEF-recognised lab
- •Hazardous waste authorisation application (Form 1 under HOWM Rules 2016) where applicable
- •Water source and ground water NOC (CGWA / state) if ground water is used
- •Fire NOC, factory licence, building approval as applicable
- •Previous consent and Form V environmental statement (for renewal)
Consent process, step by step
- 1Week 1 — Category and siting: the unit is classified from the CPCB list and the process; site checked against siting norms; EC applicability confirmed.
- 2Week 1–3 — CTE documentation: project report, water balance, emission inventory, pollution-control design and CA certificate of capital investment prepared.
- 3Week 3 — CTE filing on the Board portal with the fee; regional office scrutiny and, for Red/Orange units, a site visit.
- 4Week 6–12 — CTE granted with conditions (green belt, ETP capacity, stack height, monitoring). Construction and installation proceed.
- 5After commissioning — Trial-run intimation, monitoring reports obtained, CTO application filed with compliance report; inspection by the regional officer.
- 6Week 6–16 from CTO filing — CTO granted for 5 / 10 / 15 years as per category; hazardous-waste authorisation issued alongside where applicable.
- 7Ongoing — Monthly/quarterly monitoring as per consent, Form V environmental statement by 30 September each year, renewal application before expiry, and amendment for any expansion or change in process.
Consent fees, validity and penalties
| Item | Amount / period | Notes |
|---|---|---|
| Consent fee | Slab based on the unit's capital investment (land, building, plant and machinery) and category, per the state Board's schedule; charged for each year of validity | Paid online at filing; computed by the portal; charged at actuals |
| Hazardous waste authorisation | Fee per the state schedule | Filed with CTO where applicable |
| Monitoring and lab reports | As per the recognised laboratory | At actuals |
| BookMyCA professional fee | Fixed fee for CTE, CTO or both | Includes pollution-control documentation and inspection support |
| Timeline | CTE 30–90 days; CTO 45–120 days | Statutory: deemed consent if not refused within 4 months (Water Act, section 25(7)) |
| Validity | Red 5 years, Orange 10 years, Green 15 years | CPCB directions; state may vary |
| Penalty | Operating without consent: closure directions under section 33A of the Water Act / 31A of the Air Act, disconnection of power and water, prosecution and environmental compensation | Water Act sections 41–45; Air Act sections 37–39 |
Worked example: a stone crusher near Kotputli and a printing unit in Jaipur
A proposed stone crusher is an Orange-category unit. Before buying the plant we check the siting distance from the village and the highway, design water sprinklers, wind-breaking walls and a green belt, and file CTE with the project report and the CA certificate of a ₹1.8 crore investment. CTE is granted in the ninth week with conditions on dust control. After installation, stack and ambient-air monitoring reports are obtained and CTO is applied for; the regional officer inspects and CTO issues for ten years. By contrast, a digital printing unit with no dyeing or chemical treatment falls in the Green category (or White, for pure assembly): it files a combined application and receives a fifteen-year consent, or only intimates the Board if White.
Mistakes that cost time or bring closure notices
- •Starting construction before CTE, or production before CTO; both are offences and the Board can order closure
- •Under-declaring capital investment to reduce the fee, which the inspector reconciles with the balance sheet
- •An ETP/STP sized for the application rather than the actual effluent; the CTO inspection measures it
- •Forgetting the ground water NOC when the unit uses a borewell, which the Board now asks for
- •Missing the renewal date; operating on an expired consent is operating without consent
- •Expanding capacity or changing fuel without amending the consent
Frequently asked questions on CTE and CTO
Consent to Establish is the Pollution Control Board's permission to set up the unit, taken before construction. Consent to Operate is permission to run it, taken after the pollution-control systems are installed and before production, and renewed periodically.
CPCB's 2016 classification lists industrial sectors by Pollution Index: Red (60 and above), Orange (41–59), Green (21–40) and White (up to 20). We map your process to the list; the category sets the fee, the scrutiny and the validity.
No. White units are practically non-polluting; an intimation to the State Board is enough. Examples include solar module assembly, cotton hosiery without dyeing and scientific-instrument assembly.
Under CPCB directions, Red units get 5 years, Orange 10 years and Green 15 years. Renewal is applied for before expiry with the fee for the new period.
It is a slab based on the capital investment of the unit and its category, set by the state Board and paid for each year of validity. We compute it before filing and it is paid at actuals.
CTE typically 30–90 days and CTO 45–120 days including inspection. The Water Act provides that a complete application not refused within four months is deemed granted.
No. EC under the EIA Notification 2006 is a separate clearance for listed project categories; CTE and CTO from the State Board are required in addition, and CTE usually follows the EC.
Yes, above the sizes notified by the state, because of sewage load, bio-medical waste and DG sets. Hospitals also need bio-medical waste authorisation.