The Regulations establish Northern Ireland’s system for regulating industrial emissions. They were introduced to protect human health and the environment by ensuring that industrial activities with significant pollution potential are properly controlled. They implement the Industrial Emissions Directive, replacing older pollution‑control rules and creating a single, integrated framework for preventing and reducing pollution to air, land and water.

Key requirements

1. Requirement for a permit

Any operator carrying out an activity defined as a Part A, Part B or Part C installation must hold an environmental permit before operating.
The permit sets out the conditions under which the installation must operate to minimise environmental impact.

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2. Use of Best Available Techniques (BAT)

Operators must use Best Available Techniques to prevent or reduce emissions and resource use.
BAT requirements apply to all relevant installations and guide permit conditions.

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3. Permit conditions and operational controls

Permits include:

• Emission limit values
• Waste‑management requirements
• Monitoring and reporting obligations
• Maintenance and operational standards
• Conditions relating to air, water and land protection

Specific requirements differ for Part A, Part B and Part C installations based on scale and environmental impact.

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4. Changes to operations

Operators must notify the regulator of any planned changes.
Substantial changes require formal variation of the permit.

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5. Inspection, monitoring and enforcement

The enforcing authority must carry out routine inspections and ensure compliance.
Operators must keep and submit monitoring data, report non‑compliances and cooperate during inspections.
Enforcement tools include improvement notices, suspension notices and prosecution.

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6. Public registers and transparency

The Regulations require certain environmental data, including permit information and compliance records, to beheld on a public register, except where confidentiality or national security applies.

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7. Appeals and legal processes

Operators may appeal regulatory decisions, including permit refusals, conditions, variations, enforcement notices and revocations.

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8. Offences and penalties

Operating without a permit, breaching permit conditions or obstructing inspectors are criminal offences.
Courts can require offenders to remedy environmental damage caused by non‑compliance.

Who the legislation applies to

The Regulations apply to any operator involved in an activity that has potential to cause significant environmental harm. This includes operators of:

• Energy‑generation plants
• Waste‑incineration and waste‑treatment facilities
• Chemical and pharmaceutical installations
• Metal and mineral processing plants
• Food and drink manufacturing where thresholds are met
• Intensive livestock units (pigs and poultry)
• Certain combustion plant and mobile plant

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Both large industrial organisations and smaller regulated operators may fall within scope depending on activity type and thresholds.

UK countries and regions where it applies

The Regulations apply only in Northern Ireland.
Other UK nations have separate but equivalent regimes:

• England and Wales use the Environmental Permitting Regulations.
• Scotland uses the Pollution Prevention and Control Regulations.

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This legislation is therefore Northern Ireland–specific.

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To demonstrate compliance with the Regulations, operators of regulated installations and mobile plant must maintain clear, accurate, and auditable evidence covering permitting, operational control, emissions monitoring, reporting and regulatory interactions. The following categories summarise the evidence that organisations are expected to retain.

1. Environmental permit documentation

Operators must hold and retain:

• A valid environmental permit covering all regulated activities.
• Variations, transfers, surrenders and renewal records.
• All permit conditions, including annexes and appendices.
• Correspondence with the regulator relating to permit applications, decisions and clarifications.

2. Best Available Techniques(BAT) evidence

Operators must keep evidence showing:

• How BAT conclusions have been reviewed and applied.
• Assessment documents demonstrating the selection of BAT‑compliant techniques.
• Implementation records for any upgrades or modifications required to meet BAT.
• Justification documents where alternative techniques are used.

3. Operational and emission‑monitoring records

Evidence must demonstrate ongoing compliance with permit conditions, including:

• Monitoring results for air emissions, wastewater discharges and fugitive emissions.
• Records of sampling methods, laboratory reports and calibration certificates.
• Continuous emissions‑monitoring data (if required).
• Records of operational parameters linked to emissions control (e.g., temperature, flow rates, abatement efficiency).

4. Reporting and notification evidence

Operators must retain:

• Annual or periodic environmental‑performance reports submitted to the regulator.
• Notifications of abnormal emissions, breaches or equipment failures.
• Incident reports documenting root‑cause analysis and corrective actions.
• Records showing timely communication of required information to the regulator.

5. Maintenance and inspection evidence

Permit conditions require systems to be properly maintained. Evidence includes:

• Planned preventive‑maintenance schedules.
• Maintenance logs for abatement equipment and monitoring systems.
• Breakdown, repair and commissioning reports.
• Internal inspection records and safety‑related checks.

6. Waste‑management evidence

Where waste is produced by the installation, operators must retain:

• Waste storage, handling and segregation procedures.
• Waste transfer notes and consignment notes for hazardous waste.
• Evidence of waste‑treatment methods consistent with permit conditions.
• Records of off‑site transfers, including authorised carriers and receiving facilities.

7. Site‑management and operational‑control evidence

Operators must maintain:

• Site‑management plans required by the permit.
• Procedures for pollution prevention and spill response.
• Risk assessments relating to emissions and environmental effects.
• Staff training records relevant to operational controls and environmental compliance.

8. Evidence supporting changes to operations

Before making substantial changes, operators must notify the regulator. Evidence should include:

• Change‑request documentation.
• Environmental assessments of proposed modifications.
• Regulator approvals or variation notices.
• Updated operational procedures following changes.

9. Records relating to enforcement activity

Where enforcement occurs, operators must retain:

• Enforcement notices, suspension notices or improvement requirements.
• Evidence demonstrating corrective and preventative actions taken.
• Internal follow‑up review records.

10. Public information and confidentiality

If information is excluded from public registers due to confidentiality or national‑security grounds, operators must retain:

• Requests for exclusion.

Regulatory decisions confirming acceptance or rejection of the request.

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