Climate Change Response Act 2002

Part 8 came into force on 25 August 2026. It applies where a person's activity causes or contributes to greenhouse-gas emissions and those emissions cause or contribute to emissions-related climate change effects. In that situation, the person has no tort liability for those effects.

The definition is broad. It covers climate change itself and resulting damage, harm, interference, loss or other wrongs, including effects on health, property, public rights and the use or enjoyment of property. It can apply where activities or effects occur inside or outside New Zealand, directly or indirectly, and before or after commencement.

The transitional provisions make Part 8 relevant immediately. It applies to Smith v Fonterra Co-operative Group Ltd, to other proceedings started but not finally determined before commencement, and to proceedings begun from commencement onwards.

The Act also states that no compensation is payable because of the amendment's operation. Businesses involved in a climate-related tort claim should review pleadings and strategy against the enacted provisions rather than assuming an older filing date preserves the former position.

The Climate Change Response Act 2002 is a broad framework law, but it is also a practical compliance law. At the national level, it covers the 2050 target, emissions budgets, emissions reduction planning, the Climate Change Commission, climate risk assessment and adaptation planning.

For many businesses, the more immediate part is the New Zealand Emissions Trading Scheme. The Act sets up the registry system, participant rules, monitoring and return obligations, allocation rules, EPA powers, review and appeal rights, and offences and penalties.

That means a business should not treat this Act as policy-only. If your operations fall within the ETS parts, the Act can create direct filing, record-keeping, account, unit and governance obligations.

The businesses most likely to be directly affected are those carrying out activities that make them ETS participants, applicant participants, or allocation claimants. The Act expressly deals with participants for activities listed in Schedule 3 and applicants to be registered for activities listed in Schedule 4.

Schedule 4 clearly includes standard forestry and permanent forestry removal activities for post-1989 forest land. It also includes some other removal activities, some hydrofluorocarbon and perfluorocarbon activities, and some threshold-based fuel and stationary energy activities.

Many ordinary service businesses will not be direct ETS participants. But they can still be affected if they contract with participants, buy inputs whose price reflects ETS costs, or handle regulated gases in ways that create separate compliance risk under the Act.

Businesses often discover this Act matters when a transaction, operational change or EPA notice arrives. The practical trigger points are usually not abstract climate policy events. They are business events that change whether you are a participant, what you must report, or whether units must be surrendered or repaid.

Forestry is a common example. A change in ownership, a registered forestry right, a lease structure, or a choice between standard forestry and permanent forestry treatment can change who needs to act under the Act.

Industrial and energy businesses should also watch threshold-based activities, allocation applications, and any change that affects emissions calculations or return accuracy.

If your business is directly inside the ETS parts of the Act, the compliance cycle is structured and ongoing. The Act covers registration as a participant, the requirement to have a holding account, monitoring of emissions and removals, liability to surrender units to cover emissions, and entitlement to receive New Zealand units for some removal activities.

The Act also requires annual emissions returns and, for some removal activities, quarterly returns. It requires retention of emissions records. For industrial allocation, it also deals with applications, decisions, annual allocation adjustments, closing allocation adjustments, reconsideration and retention of records and materials.

In practice, this means your legal position depends heavily on systems. You need clear responsibility for data collection, calculation methods, filing, account management and document retention.

This Act is document-heavy. The EPA can prescribe forms, require information, conduct inquiries, amend emissions returns, and assess defaults where returns are not submitted. The Act also says amendments and assessments are presumed correct unless proved otherwise.

That makes record quality a legal issue, not just an admin issue. If your calculations, assumptions or source data are weak, it becomes harder to challenge an amendment, assessment or penalty later.

Businesses should also pay attention to emissions rulings. The Act allows applications for emissions rulings, sets out when the EPA may decline to make them, and requires notice of changes relevant to or failures to comply with those rulings.

The EPA has broad administrative and enforcement powers under the ETS parts of the Act. These include powers to require information, inquire into matters, issue and correct emissions rulings, amend emissions returns, assess defaults, and require repayment of units in cases of error.

If you are affected by an EPA decision under the ETS participant provisions, you may request the EPA to review the decision. The Act states that the request must generally be made within 20 working days after receiving notice of the decision. For certain forestry classification decisions, the 20 working day period runs from publication.

The Act also provides a right of appeal to the District Court and appeals to the High Court on questions of law only.

The Act contains a substantial enforcement framework. Under Part 4, it includes offences for failure to comply with various provisions, breach of confidentiality, failure to provide information or documents, other specified offences, and evasion or similar offences.

It also creates civil-style financial consequences for ETS non-compliance, including penalties for failing to surrender or repay units by the due date, failing to submit emissions returns by the due date, failing to submit allocation adjustments by the due date, and submitting incorrect information in returns or allocation material. Penalties are debts due to the Crown, and interest can apply for late payment.

These are not just company-level risks. The Act also deals with liability of body corporates, liability of directors and managers, and liability for acts or omissions of directors, agents and employees.

The Act also matters for some businesses dealing with synthetic greenhouse gases. Schedule 4 includes specified export and destruction activities involving hydrofluorocarbons and perfluorocarbons where prescribed thresholds are met.

The Act also includes importer record and information offences and unlawful release offences in this area. Businesses importing, exporting, destroying or handling relevant gases should connect operational procedures with accurate regulator-facing records.

Even where the Act does not make you a direct participant, it can still affect commercial documents. The clearest examples are forestry and supply arrangements. Forestry transactions may need clear drafting on who holds ETS rights, who carries surrender or repayment risk, who keeps records, and who must notify the EPA.

Supply arrangements can also be affected where a counterparty's ETS costs flow into pricing. The Act itself does not prescribe your contract wording, but it creates the legal setting that makes these clauses commercially important.

For a time-poor business owner, the practical question is simple: where could this Act change who pays, who reports, or who carries the risk if the regulator asks questions later?

The Climate Change Response Act 2002 is in force and has been amended many times. The Climate Change Response (Tort Liability) Amendment Act 2026 received Royal assent on 24 August 2026 and commenced the following day.

The principal Act page was still labelled as consolidated at 1 January 2026 when this guide was checked. Read it together with the 2026 amendment Act for the new Part 8 rules. The regulations, notices and sector rules applying to the activity also remain relevant.