DOSR Regulatory Notices may detail new or revised safety criteria or parameters for scenarios under the remit of the DOSR.
Documents
Details
The Defence Safety Authority’s (DSA’s) regulators provide regulatory advice, normally through issuing Regulatory Notices or Regulatory Instructions. These are published by the individual DSA regulator as stand-alone documents. All regulatory advice is strongly recommended practice. The burden of proof that the regulation is satisfied rests entirely with the regulated community. Care is taken to ensure that regulatory advice details what is required and to what standard but is not prescriptive as to how it is to be achieved.
These scenarios include: Defence Ordnance, Munitions and Explosives (OME) Acquisition, Defence In-service and Operational Safety Management, Defence Ranges, Major Accident Control, and Laser Safety, covered by the DOSR Publication suite DSA 02.OME and DSA 03.OME.
Regulatory Notices are usually issued to facilitate a change in procedure or require an action to be undertaken to improve the level of protection or instruction in a potentially dangerous situation. DOSR Regulatory Notices remain extant until either cancelled or incorporated into DSA 02.OME regulations or DSA 03.OME guidance material and should be acted upon within a reasonable time if a time period is not stated.
Updates to this page
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13 August 2026
Removed: DOSR Regulatory Notice (RN) 2026-04 – Notification of Amendment to DSA 02.OME Part 5 and Consultation on JSP390, DOSR RN 2025-10 Advance Notification of Amendment to DSA 02.OME Part 2 Regulations, DOSR RN 2024-04 - Publication of DSA 02.OME Regulations version 3.0.
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3 July 2026
Uploaded: DOSR Regulatory Notice (RN) 2025-08 – UK Service Personnel Utilising Civil Law Enforcement Facilities.
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5 May 2026
Added DOSR Regulatory Notice (RN) 2026-07 – Update on discontinuation of DOME and DOSRs replacement digital applications.
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22 April 2026
Added: 'DOSR Regulatory Notice (RN) 2026-06 – DSA DOSR RSAT Risk Based Assurance'.
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31 March 2026
New document added: DOSR_RN_2026-04_Notification_of_Amendment_to_DSA_02.OME_Part_5_and_Consultation_on_JSP_390_20260327.
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11 March 2026
Added: DOSR/RN/2026-02 Update on discontinuation of DOME and DOSR's replacement digital application.
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5 March 2026
Added DOSR/RN/2025-09 Advanced notice of the discontinuation of the use of the Database for Ordnance, Munitions and Explosives, DOME.
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17 February 2026
Added: DOSR Regulatory Notice (RN) 2026-03 – Solar Farms, Guidance on Separation Distances from Defence Explosives Facilities and DOSR Regulatory Notice (RN) 2026-01 - Update MOD Policy on TERP Ranges.
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19 January 2026
Uploaded DSA 02.OME Part 2 Regulations, DOSR Range Inspection Report, and DOSR Advanced Notification of the discontinuation of the use of DOME.
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30 July 2025
Added: 'DOSR RN 2025-06 - Advanced Notification of Amendment to DSA OME Publications - ESTC Standard 6 Part 1 has been superseded by TS 2023-03'.
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15 July 2025
Added 'DOSR RN 2025-07 - Project COWLEY (Adoption of NATO AASTP- 1 Quantity Distance (QD) Tables)'.
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11 June 2025
Updated 'DOSR RN 2025-04 - Independent Range Safety Inspections'.
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15 April 2025
Added 'DOSR RN 2025-04 - Independent Range Safety Inspections' and 'DOSR RN 2025-05 - update on the introduction of Certification of Defence Ordnance, Munitions and Explosives (OME)'.
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19 February 2025
Added 'DOSR RN 2025-02 - Funding for MOD Forms 906 Series' and 'DOSR RN 2025-03 - update to DSA 03.OME Part 3 Vol 1 Part 2 Categories of Authorised Civilians'.
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17 February 2025
Removed DOSR RNs: '2021-01 - Electrical Testing for OME Facilities - ESTC Standard 6 part 1, '2021-03 - Lightening Protection System Testing for OME Facilities - ESTC Standard 6 part 1' and '2021-04 - Explosives Safety Representative’s input to Building and Civil Engineering Inspections - ESTC Standard 6 part 2' as they are no longer current.
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5 February 2025
Added: 'DOSR RN 2025-01 Removal of 2 Degree Rule from DSA 03.OME Part 2' and 'DOSR RN 2024-09 Advance Notification of Amendment to the Criteria for Storage and Loading'.
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17 December 2024
Added 'DOSR RN 2022-02 Occupied Buildings Licensing and ALARP 20221114', 'DOSR RN 2023-03 MOD Fieldcraft Training Areas Licensing Process' and 'DOSR-RN-2024-02 Thermite Classification for Transport and Storage v1.1'
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10 December 2024
Added 'DOSR RN 2024-05 - UK Service Personnel Live Firing Overseas'.
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6 December 2024
Updated: DOSR RN 2024-03 Emergency Services Communications. Added DOSR RNs: 2024-01 WDA Template 40mm CT Ammunition for AJAX20240416; 2024-02 Thermite Classification for Transport and Storage; 2024-04 Publication of DSA 02.OME Regulations Version 3.0; 2024-06 Use of 6.5mm Ammunition on MOD Ranges; 2024-07 Use of MOD Ranges by Civilian Clubs, and 2024-08 MOD Form 1930T Safe Trial Activity Assurance Form (STAAF).
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15 November 2024
'DSA 03.OME Part 1 - Defence Code of Practice 105 - Safety Risk Management' and 'DSA 03.OME Part 1 - Defence Code of Practice 117 - OME Safety Review Panel and Assurance Statement' moved to https://www.gov.uk/government/publications/dsa03-ome-part-1-ome-acquisition.
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8 November 2024
Added: 'DSA 03.OME Part 1 - Defence Code of Practice 105 - Safety Risk Management' and 'DSA 03.OME Part 1 - Defence Code of Practice 117 - OME Safety Review Panel and Assurance Statement'.
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14 October 2024
First published.