JSP 520 specifies the Defence Ordnance and Environment Safety Board's (DOESB) policy for inherent Ordnance, Munitions and Explosives (OME) safety. It also looks at its environmental impact across the acquisition cycle within the OME Safety and Environmental Management. It defines the approach that shall be taken to ensure that systems remain safe and serviceable during their service life (including disposal) by reducing risks to levels as low as reasonably practicable. It also defines the responsibilities of the key stakeholders in the acquisition process and specifies the required methodology for assuring the Secretary of State for Defence that the arrangements for OME safety and environment are consistent with his safety policy statement.
JSP 520 Issue 3 was issued on 31 Jan 2011, however JSP 520 issue 2 has been retained as archive files.