Ionising radiation

New Ionising Radiation Regulations (Northern Ireland) 2017 (IRRNI17) came into force on 1 January 2018 and replaced the existing regulations (IRRNI2000). One of the biggest changes introduced by these revised Regulations is the introduction of a risk-based approach to telling HSENI of your work with ionising radiation.

Please note that from 1 October 2023, HSENI will be changing part of it’s regulatory approach to regulating under the Ionising Radiations Regulations (NI) 2017 (IRR17).

From this date onwards, employers will need to submit more information when applying for registration or consent for work with ionising radiation.

For more details, please email HSENI at:

Online forms

Please use the following online forms to apply for notification, registration and consent for the work you do with ionising radiation:

For more detailed information on how to complete the above forms, please see the following link:


Related to Ionising radiation

Most recent news items

EU Exit Regulations

16 December 2020

Access to information

How to request information from the Health and Safety Executive Northern Ireland including Freedom of Information (FOI) and the use of our Publication Scheme.