Content last updated: 19 September 2025 Periodic review
Content last updated: 22 August 2025
Content last updated: 07 May 2025 Periodic review. Addition of G3-8(h) Mobile/portable betatron producing high energy X-rays. Update of links where required. Updates to align with the wording of the Regulations, the three source licence application forms and the source licence template.
Content last updated: 07 June 2024 Periodic review – minor formatting changes and update of hyperlinks. Additional reference.
Content last updated: 03 June 2024 Periodic review
Content last updated: 01 June 2024 Periodic review
Content last updated: 29 September 2023 Separate category added to PRF-4 for mining or mineral processing; RHS24 removed from PRF-1 & PRF-2.
Content last updated: 01 July 2023 References updated; added RPS G-3 Guide for Radiation Protection in Emergency Exposure Situations & chapter 9 on Decommissioning
Content last updated: 05 January 2023 Minor editorial update
Content last updated: 05 January 2023 Minor editorial update
Content last updated: 05 January 2023 To reflect updated 2018 Regulations and latest version of laser standard
Content last updated: 05 January 2023 Updated to align with Regulations 2018 and minor editorial update
Content last updated: 01 November 2022 Updated to align with Regulations amended in August 2022; technical, human & organisational factors added to Section E; replaced ‘accident’ with ‘incident’; updated Medical Code RPS-14 to RPS C-5; updated payment methods.
Content last updated: 01 November 2022 Updated to align with changes to Regs in August 2022 – added Technical, human and organisational factors to Section I; updated references & hyperlinks; ‘accident’ replaced with ‘incident’; included requirement to provide version of application suitable for public review; updated payment methods.
Content last updated: 01 March 2021 Original issue
Content last updated: 01 May 2020 Administration update - no change to content
Content last updated: 01 January 2019 Updated to align with 2018 Regulations. This guide is currently under revision.
Content last updated: 01 August 2014 Document updated consistent with IBP; structured to clearly distinguish between mandatory requirements that must be met by an applicant and guidance which may assist an applicant meet the essential requirements.