Defence ordnance, munitions and explosives safety and environmental management policy (JSP 520)

JSP 520 provides guidance to ensure that the risks associated with OME are as low as reasonably practicable when in use, stored, moved, and disposed.

This publication was withdrawn on

This page is now out of date. For the current regulation please visit the DSA03 OME: part 1 OME Acquisition guidance page.


Part 2, Volume 1: introduction, definitions, acronyms and references

Part 2: Volume 2: process interface

Part 2, Volume 3: safety and environmental System

Part 2, Volume 4: roles and responsibilities

Part 2, Volume 5: competence

Part 2, Volume 6: OME review category

Part 2, Volume 7: legislation compliance

Part 2, Volume 8: risk management

Part 2, Volume 9: safety and environmental case development

Part 2, Volume 10: clearance and certificates

Part 2, Volume 11: insensitive munitions

Part 2, Volume 12: safety performance and feedback

Part 2, Volume 13: OME safety review panel (OSRP) process

Part 2, Volume 14: audit


Please note that this JSP will be replaced shortly. The content is out of date and no reference or use should be made to any UK legislation quoted in this document.

This document should be used for reference purposes only and should only be used as guidance until replaced. DSA DOSR take no responsibility for the use of these documents.

This Joint Service Publication (JSP) is a guide to explain the requirements needed to demonstrate that the inherent risks from Ordnance, Munitions and Explosives (OME) are either broadly acceptable or tolerable and as low as reasonably practicable (ALARP) for the MOD, third parties and the environment. JSP 520 applies to all ordnance (weapons, delivery platforms), munitions (missiles, shells, pyrotechnics, mines, bullets, explosive charge) and explosives (propellants, energetic material).

This JSP is to be used by personnel responsible for OME employed by or contracted to the MOD, land, maritime, air and third parties.

Updates to this page

Published 1 December 2010
Last updated 16 August 2019 + show all updates
  1. Added a note stating that these publications are out of date.

  2. Updated all documents to Issue 4.2 dated July 2015.

  3. Added issue 4 for Part 1 and Part 2 as JSP 520 has been split into two parts.

  4. First published.

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