11 March 2026
Spencer Jones
[FYI request #33743 email] Dear Spencer
RESPONSE TO YOUR OFFICIAL INFORMATION REQUEST
Thank you for your email of 16 February 2026, in which you requested, pursuant to the
Official Information Act 1982 (the Act), further information related to hazardous substances
and the Ministry of Defence’s audit function. Responses to your questions are below.
1. Definition of “hazardous substances” within MoD audit scope
1.1 The definition, framework, or interpretive guidance used by the Ministry of
Defence when auditing NZDF under the Hazardous Substances and New Organisms
Act 1996 (HSNO).
When the Ministry undertakes assurance activities relating to hazardous substances, we
apply the definition of
hazardous substance as set out in section 2 of the
Hazardous
Substances and New Organisms Act 1996 (HSNO).
This statutory definition is used as the baseline for determining whether a substance falls
within the Ministry’s audit scope.
For recent audits, the practical scoping of hazardous substances has been aligned with the
definitions contained in
New Zealand Defence Force Defence Force Order (DFO) 41 – Safe
Management of Hazardous Substances. DFO 41 defines:
Class 1 substances: ammunition and explosives.
Classes 2–9 substances: flammable, oxidising, toxic, corrosive, and environmentally
hazardous substances.
Audit scope is set for each audit through a Terms of Reference (ToR) informed by a risk
assessment conducted before audit planning.
Document Outline