About us Mō mātou

About the Ministry of Health and the New Zealand health system. 

Regulation & legislation Ngā here me ngā ture

Health providers and products we regulate, and laws we administer.

Strategies & initiatives He rautaki, he tūmahi hou

How we’re working to improve health outcomes for all New Zealanders.

Monitoring & statistics He aroturuki, he tatauranga

Data and insights from our health surveys, research and monitoring.

Māori health Hauora Māori

Increasing access to health services, achieving equity and improving outcomes for Māori.

On this page

What is considered a radiation incident?

The radiation codes of practice specify what is considered as an incident.

For example, ORS C2, the Code of Safe Practice for Nuclear Medicine states that a reportable incident is an incident resulting in:

  1. a dose limit being exceeded,
  2. radioactive sources that are lost, missing or beyond regulatory control, or
  3. a radiation dose to a patient that exceeds:
    1. 1.5 times the intended dose (when the intended effective dose exceeds 5 mSv),
    2. 2 times the intended dose (when the intended effective dose exceeds 0.5 mSv but is less than or equal to 5 mSv), or
    3. 20 times the intended dose (when the intended dose is less than or equal to 0.5 mSv).

Why do radiation incidents need to be reported?

In some cases, this is a mandatory regulatory requirement (see below). In other cases, it is part of a ‘lessons learned’ campaign to help improve radiation safety.

Any person who has become aware of a radiation incident can submit a radiation incident notification.

Duties of source licence holders and consent holders

The Radiation Safety Act 2016 states that if the holder of a source licence or consent believes that an incident has occurred that has resulted in unintended loss or release of radiation, or overexposure of a person to radiation, they must notify the Director as soon as practical.

Failing to notify the Director is an offence under Section (65) of the Radiation Safety Act 2016.

How to report a radiation incident

Please use the appropriate form below for reporting a radiation incident:

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