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HSNO functions
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HSNO functions

From 1 September 2014, WorkSafe New Zealand will undertake, on behalf of the Environmental Protection Authority (EPA), certain hazardous substance functions under the Hazardous Substance and New Organisms (HSNO) Act. This includes:

  • Issuing test certifier approvals, renewals and extensions
  • Oversight of the test certification regime
  • Issuing controlled substance licences
  • Issuing approvals for plant and equipment used in workplace
  • Approval of HSNO codes of practice
  • Development of guidance material and other information resources.


View the documents and guidance transferred from the EPA


This change is an element of the overall package of reforms that are underway to improve New Zealand’s health and safety systems.

WorkSafe already has an obligation under the HSNO Act to ensure that the Act is complied with in places of work. This obligation remains unchanged.

Read more on the health and safety reform


Last updated 1 December 2016


On Monday 4 April 2016, the New Health and Safety at Work Act 2015 (HSWA) came into effect.

HSWA repeals the Health and Safety in Employment Act 1992, with immediate effect.

All references to the 1992 Act on this website and within our guidance will be progressively removed.