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The Kerala State Pollution Control Board (KSPCB) through its circular dated 8 October 2026, has revised the categorisation of certain industrial, and non-industrial activities in Kerala. The circular adds classifications for three activities absent from the Central Pollution Control Board’s categorisation list, and changes the category assigned to selected sectors previously classified under the Red category.
Under the revised classification, spices fumigation and pre-vulcanisation of natural rubber latex have been placed in the Orange category, while stainless steel tank and vessel manufacturing has been placed in the Green category. Seven existing sector entries have also been reclassified or revised, covering activities such as LPG bottling, coir processing, municipal solid waste incineration and hazardous waste transit storage.
The circular also changes wastewater generation thresholds for specified places of worship and parks. One important provision states that parks excluding zoological parks with wastewater generation below 5 kilolitres per day (KLD) do not require the Board's consent under that entry.
These changes matter because businesses need to identify the correct pollution category when assessing their environmental permissions and applicable Pollution Control Board requirements. However, a change in classification does not automatically cancel existing approvals, or remove obligations under other environmental laws.
Businesses affected by the revision should check their new category against their existing Consent to Establish (CTE), Consent to Operate (CTO) and other applicable environmental permissions.
The circular follows the revised categorisation framework referred to by KSPCB and the recommendations of its categorisation committee.
| Particular | Details |
| Issuing authority | Kerala State Pollution Control Board |
| Circular number | KSPCB/159/2022-SEE-3 |
| Document reference | I/66429/2026 |
| Circular date | 8 October 2026 |
| Document type | Circular |
| Subject | Categorisation of previously unlisted industries and reclassification of Red category sectors |
| Earlier KSPCB circular | KSPCB/258/2025-SEE-1, dated 28 March 2025 |
| CPCB revised scoring directions referenced | 12 February 2025 |
| Categorisation committee meeting | 30 July 2026 |
| Newly categorised activities | 3 |
| Reclassification entries | 7 |
| Categories involved in revised entries | Orange, Green and Blue |
| Jurisdiction | Kerala |
| Separate future commencement date | Not expressly specified in the circular |
| General compliance deadline | Not expressly specified in the circular |
| Main business concern | Identifying the revised category and checking applicable consent requirements |
The circular was addressed to the Board's regional and district offices, with a copy marked to its IT Cell for uploading to the website.
The KSPCB website also lists the circular dated 8 October 2026 under its official circular updates.
Industries differ in the types and quantities of pollutants they may generate. A large waste treatment facility, a manufacturing workshop and a small processing unit may have different environmental impacts. Pollution Control Boards use industry categorisation systems to distinguish activities according to their assessed pollution potential.
In Kerala, the categorisation framework is implemented by KSPCB, taking into account the directions and classification methodology issued by the Central Pollution Control Board (CPCB).
Role of the Central Pollution Control Board
CPCB is India's central pollution control authority. Its work includes developing pollution control guidance, coordinating with State Pollution Control Boards and supporting the implementation of environmental laws.
Industry categorisation is one part of this framework. It provides a basis for grouping activities according to their pollution potential rather than treating every type of establishment identically.
In the October 2026 circular, KSPCB specifically refers to CPCB directions dated 12 February 2025 concerning a revised scoring methodology.
Role of the Kerala State Pollution Control Board
KSPCB is responsible for pollution control administration within Kerala, including the implementation of applicable consent requirements.
Its responsibilities include assessing relevant industrial activities, dealing with pollution control consents and overseeing compliance with applicable environmental standards.
The Board also issues circulars and directions to clarify how particular activities are categorised.
The latest circular addresses activities not included in the CPCB categorisation list and reconsideration of certain sectors that KSPCB had previously classified in Red category.
Relevant environmental laws
The main laws governing pollution control include:
These laws form part of the wider compliance environment. The 8 October 2026 circular does not reproduce or replace their complete requirements.
A business should therefore consider both its revised industry category and any separately applicable statutory obligations.
Background of the earlier categorisation
KSPCB states that it implemented the revised Red, Orange, Green, White and Blue industry categorisation list through its earlier circular dated 28 March 2025.
It also records that existing Red category sectors classified under the earlier CPCB scoring directions of 7 March 2016 were required to be recalculated using the newer scoring methodology.
The categorisation committee reviewed 21 previously classified Red category sectors. After recalculation, sectors were either placed in an appropriate revised category or included under more suitable existing sector descriptions.
The October circular lists the resulting revised entries. It does not provide individual scoring calculations for all 21 reviewed sectors.
The circular addresses two specific matters: industrial activities missing from the existing CPCB categorisation list and the reassessment of sectors previously classified in Red category.
Classification of previously unlisted industrial activities
Some industrial processes may not appear as separate entries in the central categorisation list.
For businesses carrying out these activities, the absence of a specifically named entry can create questions about which sector classification should be used.
KSPCB considered three such activities and assigned their categories based on the recommendations approved following the categorisation committee meeting.
The activities are spices fumigation, pre-vulcanisation of natural rubber latex and stainless steel tank and vessel manufacturing.
Their inclusion provides an identified category for those activities within Kerala's pollution control framework.
Reassessment of earlier Red category sectors
Red category represents the higher end of the pollution potential classification framework. However, the appropriate category of an activity depends on the applicable assessment methodology and the sector's defined scope.
KSPCB has changed some of its earlier classifications following the revision of the CPCB scoring methodology. Certain activities now fall under different categories. The Board has also changed the descriptions of some sectors to reflect their revised classification.
The resulting changes affect waste management activities, manufacturing operations and certain non-industrial establishments.
More specific wastewater-based classifications
The circular also revises certain wastewater generation thresholds.
For specified places of worship, the relevant threshold changes from at least 100 KLD to at least 50 KLD.
For parks excluding zoological parks, the threshold changes from at least 100 KLD to at least 5 KLD.
These changes make the exact wastewater quantity particularly important when determining the relevant sector entry.
The Pollution Index is used in the industry categorisation framework to assess the pollution potential associated with different activities.
In simple terms, the scoring methodology provides a structured basis for assigning an industry to an appropriate pollution category.
The category is not necessarily a measurement of pollution at one particular factory on a particular day. It reflects the classification of an industrial activity under the applicable methodology.
Earlier and revised methodology
KSPCB's circular refers to two sets of CPCB directions.
| CPCB Direction Date | Relevance to the Circular |
| 7 March 2016 | Earlier scoring methodology used for previously classified sectors |
| 12 February 2025 | Revised methodology used to recalculate the classifications |
The circular states that sectors previously classified by KSPCB using the earlier methodology were to be reassessed using the new scoring approach.
It does not provide the individual Pollution Index scores, calculation sheets or detailed numerical scoring parameters for the revised sectors.
Therefore, the precise scoring formula and numerical category ranges should be taken from the relevant CPCB directions rather than reconstructed from this circular alone.
Why recalculation matters
A revised methodology can lead to changes in how particular industrial activities are categorised.
For affected businesses, this may change the category recorded against a sector or the relevant description used for classification.
However, the revised category should not be interpreted as proof that every facility within that sector has reduced its actual emissions or wastewater discharge.
Individual units must still comply with their applicable environmental standards and approvals.
The circular contains three main developments.
Three activities receive identified classifications
KSPCB has categorised:
Seven existing sector entries are revised
The revised entries cover municipal waste incineration, coir bleaching and dyeing, LPG bottling, specified worship places, zoological parks, hazardous waste transit storage and parks excluding zoological parks.
These changes involve reassignment of categories and, in certain cases, updated sector descriptions or wastewater thresholds.
A consent exclusion is expressly stated for certain parks
The circular states that parks excluding zoological parks with wastewater generation below 5 KLD do not require the Board's consent.
This is a specific provision. It should not be extended to other industries, facilities or activities without a separate legal basis.
The KSPCB circular identifies three activities that were not included in the CPCB categorisation list and assigns them specific pollution categories.
| Newly categorised industrial activity | Assigned Category |
| Units engaged in spices fumigation | Orange |
| Units engaged in pre-vulcanisation of natural rubber latex | Orange |
| Manufacturing of stainless steel tanks and vessels | Green |
Spices Fumigation Units: Orange Category
Spices fumigation is a treatment process used in the handling and processing of spices. It generally involves treating spices under controlled conditions for purposes such as pest management, depending on the process being used.
KSPCB has placed units engaged in spices fumigation under the Orange category.
The classification is relevant to businesses carrying out this specific activity in Kerala, including units where fumigation forms part of spice processing or handling operations.
Businesses should check whether their actual activity matches the sector described in the circular. For instance, spice cleaning, grinding, packaging and fumigation are not necessarily identical activities for regulatory classification.
A unit carrying out several processes should examine the applicable classification of its complete operations rather than assuming that every activity is covered by the fumigation entry.
From a compliance perspective, operators should review their existing pollution control records and identify whether the Orange category entry affects any consent application or other applicable requirement.
The circular does not introduce separate fumigation standards, operating conditions or chemical restrictions.
Pre-Vulcanisation of Natural Rubber Latex: Orange Category
Pre-vulcanisation is a rubber processing activity in which natural rubber latex undergoes treatment before further manufacturing or use.
The process forms part of certain rubber product manufacturing operations.
Under the circular, units engaged in the pre-vulcanisation of natural rubber latex are classified in the Orange category.
This classification is relevant to operators carrying out the specified process. However, the circular does not state that every natural rubber-based industry must be classified under this entry.
Businesses involved in latex processing should examine their actual manufacturing processes, treatment activities and existing KSPCB classification.
They should also continue to assess separately applicable environmental requirements, including wastewater handling and pollution control conditions where relevant.
Stainless Steel Tank and Vessel Manufacturing: Green Category
Manufacturers producing stainless steel tanks and vessels have been assigned the Green category under the revised circular.
Such products may be manufactured for applications involving liquid storage, industrial processing, food manufacturing and other uses.
The circular's classification concerns the identified manufacturing activity. It does not establish that all stainless steel fabrication, surface treatment or metal finishing activities automatically fall under Green category.
The processes carried out at a particular facility remain important.
For manufacturers operating in Kerala, the revised entry provides a specific category to consider when reviewing their Pollution Control Board documentation.
Businesses should check whether their operations match the stated sector and whether any separately applicable consent requirements continue to apply.
The most substantial part of the circular concerns sectors previously classified under Red category.
KSPCB states that it reviewed 21 Red category sectors using the revised CPCB Pollution Index scoring methodology. The circular then presents seven entries involving revised categories or more appropriate sector descriptions.
Old vs revised industry categories
| Earlier Sector | Earlier Category | Revised Sector or Treatment | Revised Category |
| Municipal solid waste incineration plants | Red | Municipal Solid Waste Management Facility- Waste-to-Energy Power Plants | Blue |
| Manufacturing coir items from coconut husk involving dyeing and bleaching | Red | Coir bleaching and dyeing/printing units | Orange |
| LPG bottling plants | Red | LPG bottling plants | Green |
| Worship places, conventions and temporary pilgrimages with sewage and sullage generation ≥100 KLD | Red | Relevant facilities with sewage and sullage generation ≥50 KLD | Orange |
| Zoological parks with wastewater generation ≥100 KLD | Red | Zoological parks | Orange |
| Hazardous waste transit storage facilities | Red | Hazardous waste transit storage facilities | Orange |
| Parks excluding zoological parks with wastewater generation ≥100 KLD | Red | Parks excluding zoological parks with wastewater generation ≥5 KLD | Orange |
Municipal Solid Waste Incineration Plants: Red to Blue
The earlier Red category entry concerned incineration plants dealing with municipal solid waste.
Under the revised classification, KSPCB identifies the sector as Municipal Solid Waste Management Facility: Waste-to-Energy Power Plants and places it under the Blue category.
The circular records the revised sector as deleted from the earlier Red category entry.
Waste-to-energy facilities handle waste and use appropriate technologies to recover usable energy. Their operations can involve waste reception, processing, treatment and energy generation.
The Blue category classification is therefore relevant to facilities falling within the revised sector description.
However, the revised entry should not be interpreted as an automatic exemption from requirements governing municipal solid waste management.
Operators must continue to consider the applicable Solid Waste Management Rules, environmental approvals, consent conditions and any other statutory obligations relevant to their facility.
An existing facility should compare its approved activity description with the revised KSPCB sector entry before deciding whether an update to its regulatory records is necessary.
Coir Bleaching and Dyeing Units: Red to Orange
The previous Red category description covered manufacturing coir items from coconut husk involving dyeing and bleaching.
KSPCB has revised the sector description to coir bleaching and dyeing/printing units and placed it in the Orange category.
This change is particularly relevant to coir processing units undertaking the activities identified in the revised entry.
The revised classification may be important when determining which category should be recorded in relevant pollution control applications.
However, businesses should not assume that the shift to Orange category removes requirements relating to wastewater treatment or discharge.
Where water, dyes, bleaching materials or other substances are used in operations, applicable environmental conditions remain relevant.
The circular changes the sector classification; it does not announce a general exemption from wastewater management responsibilities.
LPG Bottling Plants: Red to Green
LPG bottling plants have been reclassified from Red to Green category.
The circular expressly records the deletion of this sector from the earlier Red category classification.
This is an important change for operators of LPG bottling facilities in Kerala.
However, LPG bottling also involves safety and operational requirements that are separate from pollution category classification.
Businesses should distinguish environmental categorisation from applicable petroleum, gas handling, fire safety and other statutory obligations.
The Green category assignment does not itself cancel those requirements.
An existing operator should review the category recorded in its KSPCB documents and determine whether any administrative correction or other action is necessary under applicable procedures.
Places of Worship and Temporary Pilgrimage Facilities: Red to Orange
KSPCB has revised the sector entry for specified places of worship, including convention and temporary pilgrimage activities.
The earlier Red category entry referred to sewage and sullage generation of at least 100 KLD.
Under the revised entry, the threshold is at least 50 KLD, and the relevant sector is placed in Orange category.
The circular therefore changes both the category and the numerical threshold used in the sector description.
Operators of covered facilities should examine wastewater generation and the exact description of their activities.
The revised entry does not establish that every place of worship requires the same consent or approval.
Applicability must be assessed according to the specific sector definition, threshold and relevant governing requirements.
Zoological Parks: Red to Orange
The earlier Red category entry concerned zoological parks with wastewater generation of at least 100 KLD.
The revised sector is described simply as zoological park and assigned the Orange category.
The circular states that all zoological parks are henceforth included in Orange category.
This is distinct from the classification of parks excluding zoological parks.
Zoological park operators should therefore use the applicable zoological park classification rather than relying on the wastewater threshold used for ordinary parks.
The new category does not automatically remove other applicable requirements concerning wastewater, waste handling, environmental protection or zoo operations.
Hazardous Waste Transit Storage Facilities: Red to Orange
Hazardous waste transit storage facilities have been moved from Red to Orange category.
Such facilities may be involved in the temporary storage of hazardous waste as part of its movement between authorised handlers or facilities.
The revised pollution category does not mean that hazardous waste can be stored or handled without complying with applicable waste management legislation.
The Hazardous and Other Wastes (Management and Transboundary Movement) Rules, 2016, may impose separate requirements depending on the activity and facility.
Operators should check their existing authorisation, consent conditions and applicable waste-handling obligations before making any operational changes.
Parks Excluding Zoological Parks: Red to Orange
KSPCB has also changed the classification of parks other than zoological parks.
The earlier sector entry concerned parks with wastewater generation of at least 100 KLD.
The revised Orange category entry applies to parks excluding zoological parks with wastewater generation of at least 5 KLD.
The circular also states that parks excluding zoological parks generating less than 5 KLD wastewater do not require the Board's consent.
This creates an important distinction between parks meeting or exceeding the threshold and those falling below it.
Operators should check the relevant wastewater quantity and ensure that the facility falls within the stated sector description.
Industry categorisation helps pollution control authorities distinguish activities according to their assessed pollution potential and the applicable classification framework.
The categories do not replace individual environmental approvals or sector-specific laws.
| Pollution Category | General Meaning | Example Relevant to this Circular |
| Red | Activities assigned to the higher pollution-potential category | Earlier classifications of the reviewed sectors |
| Orange | Activities assigned to a lower pollution-potential category than Red within the classification system | Coir bleaching and dyeing, latex pre-vulcanisation |
| Green | Activities placed in the Green category under the applicable assessment framework | LPG bottling, stainless steel tank and vessel manufacturing |
| White | Activities identified under the White category of the wider classification system | No new White category assignment in this circular |
| Blue | A category under the revised framework that includes specified environmental management activities | The identified municipal waste-to-energy sector |
Why the category matters
The correct category can be relevant to the administration of pollution control consent and the treatment of particular activities under applicable KSPCB procedures.
However, the assigned category is only one part of the regulatory assessment.
The nature of the operations, relevant legal provisions, existing approvals, applicable pollution standards and any specific exemptions also matter.
A Green category unit should not automatically assume that it requires no consent. Similarly, an Orange category unit should not assume that every Red category condition disappears without a review of its actual approvals.
Wastewater generation is an important element of the revised entries for certain non-industrial establishments.
The circular changes the thresholds for specified places of worship and parks excluding zoological parks.
What does KLD mean?
KLD stands for kilolitres per day.
One kilolitre equals 1,000 litres. It is a unit commonly used to express daily water or wastewater quantities.
The circular uses KLD to identify wastewater generation thresholds for certain establishments.
Revised threshold for places of worship
| Particular | Earlier Entry | Revised Entry |
| Relevant activity | Places of worship, including specified convention and temporary pilgrimage activities | Same general activity group, subject to revised description |
| Sewage and sullage threshold | ≥100 KLD | ≥50 KLD |
| Pollution category | Red | Orange |
The revised entry covers the specified activities with sewage and sullage generation of at least 50 KLD.
It is important to preserve the term at least, because the threshold includes 50 KLD itself.
The circular does not expressly prescribe a new method for measuring wastewater generation or a separate reporting schedule.
Revised threshold for parks excluding zoological parks
| Wastewater generation | Treatment stated in the circular |
| Less than 5 KLD | Board consent not required under the stated non-zoological park provision |
| 5 KLD or more | Included in the Orange category entry |
The threshold applies to parks excluding zoological parks.
It should not be used to determine the classification of zoological parks, which are addressed separately.
Why these thresholds matter
A wastewater threshold helps identify whether an establishment falls within a particular sector description.
Operators should therefore maintain reliable information about their activities and wastewater generation when assessing their classification.
The circular does not say that every facility below 5 KLD wastewater generation is exempt from KSPCB consent. The express exclusion concerns the specified non-zoological park sector.
The clearest consent-related exclusion in the circular concern parks excluding zoological parks with wastewater generation below 5 KLD.
KSPCB expressly states that such parks do not require the Board's consent.
Three conditions are important:
A wastewater quantity of exactly 5 KLD is not below the threshold. The revised Orange category entry includes parks generating 5 KLD or more.
The distinction also matters for facilities combining a park with other activities.
Where separate commercial, industrial or operational activities exist, those activities may require independent classification and assessment.
The circular does not create a general exemption for every activity operating within the premises of a park.
The circular applies to the specified activities within Kerala State Pollution Control Board's jurisdiction.
Its effect depends on the nature of the establishment and the sector description that applies to it.
| Affected Stakeholder | Relevant Change | Main Compliance Consideration |
| Spices fumigation operators | Newly assigned Orange category | Confirm that the activity matches the revised entry |
| Natural rubber latex pre-vulcanisation units | Newly assigned Orange category | Review the recorded industrial classification |
| Stainless steel tank and vessel manufacturers | Newly assigned Green category | Check the actual manufacturing processes covered |
| Municipal waste-to-energy facility operators | Revised Blue category sector | Review the approved activity description |
| Coir bleaching and dyeing/printing units | Orange category | Check classification and existing pollution control conditions |
| LPG bottling plant operators | Green category | Review environmental classification separately from safety approvals |
| Operators of specified worship and pilgrimage facilities | Orange category with revised threshold | Assess applicable sewage and sullage generation |
| Zoological park operators | Orange category | Apply the separate zoological park entry |
| Hazardous waste transit storage operators | Orange category | Review classification and continuing hazardous waste obligations |
| Non-zoological park operators | Orange at ≥5 KLD; specified consent exclusion below 5 KLD | Verify sector scope and wastewater generation |
The circular is not a nationwide change to all industrial categories. Its classifications are issued by KSPCB for the relevant activities in Kerala.
Businesses obtaining pollution control permissions commonly encounter two important terms: Consent to Establish and Consent to Operate.
The revised KSPCB classification may be relevant when identifying the correct category for these permissions.
However, the circular does not introduce a new general CTE or CTO application process.
Consent to Establish, commonly called CTE, is an approval associated with establishing an activity or facility where the applicable pollution control legislation requires such consent.
Its purpose is to address relevant pollution control considerations before the covered establishment proceeds with activities for which prior consent is necessary.
The need for CTE depends on the governing law, the type of establishment and any applicable exemptions.
Consent to Operate, or CTO, concerns operating an establishment where the applicable pollution control framework requires operating consent.
A CTO may contain conditions relating to matters such as wastewater, emissions and pollution control measures, depending on the particular facility.
Businesses must comply with applicable conditions while the consent remains in force.
The October 2026, circular does not expressly state that every existing CTE or CTO is automatically amended after reclassification.
It also does not direct all affected establishments to submit fresh consent applications within a specified period.
Businesses should therefore avoid assuming that a revised category changes an existing consent document without any administrative action.
An operator can review the category recorded in its current approval and confirm the appropriate procedure with KSPCB where necessary.
A category assignment does not, by itself, provide a complete answer to whether consent is required.
That question depends on the applicable legislation, the nature of the activity and any relevant exemptions.
The October circular expressly provides an exclusion for qualifying non-zoological parks generating less than 5 KLD wastewater. It does not provide an equivalent blanket exclusion for all Green or Orange category industries.
Manufacturers and other operators should therefore check the applicable consent position rather than relying only on their revised category.
Existing units should review:
These are recommended checks, not a new mandatory procedure expressly created by the circular.
Businesses affected by the revised KSPCB categories should understand the difference between a change in classification and a change in their existing environmental responsibilities.
The October circular primarily concerns industry categorisation. It does not introduce a complete new environmental compliance system for the affected sectors.
Nevertheless, operators may still have obligations under the relevant laws and conditions of their existing permissions.
Pollution Control Board consent requirements
Where an establishment is subject to the applicable consent provisions, it must comply with those requirements.
A revised industrial category may be relevant to the applicable consent administration process. However, this does not automatically establish that an existing approval must be renewed, or amended immediately.
Businesses should check the current status and conditions of their permissions.
Wastewater management requirements
Wastewater management remains important for establishments generating industrial effluent, sewage or other wastewater.
Applicable requirements may concern treatment arrangements, discharge conditions, monitoring and compliance with prescribed standards.
These obligations arise from the governing laws, and individual permissions, not merely from the revised category label.
Air pollution control requirements
Industrial facilities producing emissions may be subject to air pollution control requirements.
Operators should continue to follow the applicable emissions standards and consent conditions.
The change from Red to Orange or Green does not itself authorise a facility to discontinue pollution control equipment or monitoring.
Hazardous waste management requirements
Hazardous waste transit storage facilities should pay particular attention to the distinction between industry classification and waste management authorisation.
Although the circular places these facilities in Orange category, separately applicable hazardous waste management requirements may continue.
Operators should review their authorisations, permitted activities and relevant waste management obligations.
Records and environmental documentation
The circular does not introduce a specific new document checklist for all reclassified industries.
As a practical compliance measure, businesses can review relevant existing records, including:
The documents required for any future application or amendment should be confirmed under the applicable KSPCB procedure.
The revised industry categorisation may affect different sectors in different ways.
Some businesses now have a specifically identified category for their activity. Others have moved from Red category to Orange, Green or Blue. Certain establishments must also consider revised wastewater thresholds.
Stainless steel tank and vessel manufacturers now have a Green category entry for the identified activity.
Businesses carrying out that manufacturing process can review whether their recorded classification corresponds with the revised entry.
The precise nature of operations remains important, particularly where a facility undertakes additional activities not expressly covered by the circular.
Pre-vulcanisation of natural rubber latex is now specifically identified under Orange category.
Coir bleaching and dyeing/printing units have also been placed under Orange category through the reclassification exercise.
These changes provide revised sector classifications for affected operators.
Businesses should check their existing category, the actual activities carried out and the environmental requirements applicable to their operations.
LPG bottling plants have been shifted from Red to Green category.
The change is relevant for environmental classification, but it does not replace separate safety-related requirements applicable to LPG operations.
Operators should examine their existing permissions and ensure that environmental and other regulatory obligations are assessed independently.
The identified municipal solid waste management and waste-to-energy sector has been placed in Blue category.
Facility operators should review whether their operations correspond with the revised sector description.
Existing waste management responsibilities and other environmental permissions require separate attention.
Hazardous waste transit storage facilities have moved to Orange category.
Operators should not treat this change as permission to expand storage activities, change waste types or modify operating conditions without the approvals required under other applicable provisions.
These establishments are particularly affected by changes to wastewater generation thresholds.
For qualifying non-zoological parks, the circular expressly clarifies the consent position below 5 KLD.
Specified places of worship and temporary pilgrimage facilities are covered by a revised Orange category entry at a sewage and sullage generation threshold of at least 50 KLD.
Accurate identification of the establishment and its wastewater generation is therefore important.
No. A change in pollution category does not mean a business is free from all its existing environmental requirements.
The October 2026 circular revises the categories of certain sectors. It does not say that existing environmental approvals, consent conditions or legal requirements are cancelled.
Businesses need to look at four separate matters.
Accordingly, reclassification should be treated as a reason to review applicable regulatory records, not as automatic permission to discontinue existing compliance measures.
The revised classification provides greater clarity for the activities expressly addressed in the circular.
At the same time, affected businesses may need to assess how the changes relate to their existing records and permissions.
These are regulatory and administrative benefits. The circular does not guarantee reductions in consent fees, compliance costs or inspection requirements.
Businesses may still need to address certain questions.
An operator conducting several activities must determine which sector descriptions apply to its operations.
Existing consent documents may also contain older category references, requiring clarification of the appropriate administrative treatment.
For establishments covered by wastewater-based entries, understanding and documenting the relevant wastewater generation quantity is important.
Businesses should also avoid confusing industry categorisation with other statutory approvals or environmental responsibilities.
Using an incorrect sector classification can create practical difficulties when assessing pollution control requirements.
Businesses covered by the October 2026 circular should conduct a focused review of their industry classification and environmental permissions.
Step 1: Identify the exact activity
Determine whether the establishment carries out one of the industrial or non-industrial activities expressly mentioned in the circular.
Where several operations take place at the same facility, consider whether additional sector entries may be relevant.
Step 2: Check the revised category
Compare the actual activity against the revised descriptions issued by KSPCB.
Do not rely solely on an older sector list.
Step 3: Review existing pollution control approvals
Examine the category and activity description recorded in existing CTE, CTO or other relevant documents.
Step 4: Verify wastewater thresholds where applicable
Operators of covered parks and places of worship should pay attention to the numerical limits and conditions stated in the revised entries.
Step 5: Check continuing environmental requirements
Identify obligations arising under existing consent conditions, applicable waste management rules and other governing legislation.
Step 6: Confirm whether an administrative update is necessary
Where a classification change affects an existing approval or application, confirm the appropriate process with KSPCB.
The circular does not prescribe a universal deadline for all affected operators to amend their existing documents.
Step 7: Maintain accurate compliance records
Keep relevant classifications, consent documents and supporting information available for future applications or reviews.
The following checklist provides a practical way to review the revised classification.
| Review Item | What Businesses should Check | Nature of Action |
| Industry classification | Whether the activity falls within a revised KSPCB sector entry | Recommended review |
| Earlier category | Whether the establishment was previously recorded under Red category | Recommended review |
| Revised category | Whether the applicable entry is now Orange, Green or Blue | Recommended review |
| Wastewater threshold | Whether the specified KLD threshold applies | Relevant to covered establishments |
| Existing CTE | Whether the existing document accurately describes the activity | Recommended review where applicable |
| Existing CTO | Whether recorded conditions and classifications require attention | Recommended review where applicable |
| Environmental authorisations | Whether separately required approvals remain valid | Required where applicable under governing law |
| Pollution control conditions | Whether existing statutory and consent conditions are being followed | Required where applicable |
| KSPCB clarification | Whether an administrative correction or clarification is necessary | Case-dependent |
| Records | Whether relevant documents accurately reflect the establishment's operations | Recommended administrative check |
This checklist is intended to support a compliance review. It is not a new mandatory reporting procedure introduced by the October circular.
Businesses affected by the revised categorisation may need support in understanding the appropriate industry classification and determining which environmental permissions apply to their operations.
Corpseed provides Pollution Control Board-related services, including Kerala Pollution Board NOC assistance and broader consent compliance support.
Corpseed's Pollution Control Board consultancy services can assist businesses in understanding relevant pollution control requirements, and identifying appropriate application support.
For operators covered by the revised KSPCB categories, the first step is to establish the correct industrial activity and review its applicable regulatory position.
Businesses establishing activities covered by applicable consent requirements may need support in preparing their applications and relevant documentation.
Corpseed's Pollution Control Board services include assistance relating to consent applications.
Operating businesses may require assistance with applicable consent documentation, renewals or compliance reviews.
Corpseed also provides a service relating to Consent to Operate annual compliance.
A compliance review can help businesses identify relevant permissions, existing approval conditions and changes that may require further regulatory clarification.
For affected establishments, this may include reviewing the revised sector classification against current consent records.
Need assistance with Kerala Pollution Control Board requirements? Businesses can contact Corpseed to discuss their applicable industry classification, consent documentation and environmental compliance requirements.
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