Rules for hazardous substances

We put rules in place, called controls, to manage the risks of hazardous substances and to safeguard people and the environment.

EPA notices for hazardous substances

EPA notices contain many of the rules you must follow for managing hazardous substances. The notices and some accompanying guidance are listed here.

Hazardous substances classification codes

Find out what classification codes mean and which ones, if any, apply to your hazardous substances.

Controls for hazardous substances

When a hazardous substance is approved (either under a group standard or individually), controls (or rules) are put in place for their use, so that the risks ar…

Exempt substances and laboratories

Some hazardous substances and laboratories are exempt or excluded from the Hazardous Substance and New Organisms (HSNO) Act.

Rules for Polychlorinated Biphenyls (PCBs)

PCBs are banned in New Zealand, but small amounts can still turn up and need to be managed safely. Get advice on what to do with left over PCBs.

Transfer Approvals and Gazette Notices

When the HSNO regime came into force, some substances had approvals from other regimes brought directly into the HSNO regime. These were performed using transfe…

Codes of Practice for Hazardous Substances

Codes of practice give additional rules and guidance when using hazardous substances.

Hazardous substance approvals

Hazardous substances need to be approved before they can be used in New Zealand.