Defence diving regulation

This Defence Safety Authority Regulatory publication articulates the Defence Maritime Regulator requirements for the safety of defence diving activity.


DSA02-DMR: defence diving regulations


These regulations will be superseded on 1st January 2019, when the regulations come into force as part of a set of Defence Maritime Regulations for Health Safety and Environmental Protection, which incorporate the MOD Shipping, Ports and Harbours, and Defence Diving Regulations into a single set.

These diving regulations (DSA 02 DMR Diving Regulations) are issued by the Defence Maritime Regulator (DMR), replacing JSP 433 Part 1 Diving regulations as the central DMR Regulatory Framework for the safety of all safety defence diving activity.

The goal of the regulations is to govern all MOD Diving activities (military, contracted and adventurous training) so they achieve the outcomes of the Diving at Work Regulations 1997 within UK waters. These regulations are to enable defence diving activity compliant with the law and, where there are exemptions, to ensure defence lessons are applied.

The regulations align, where practicable, the goals of statute with defence lessons, and where there are disapplications, exemptions or derogations (DEDs) in transition to war and during warlike activities, seek to achieve outcomes as least as good.

All supporting information and guidance has been moved to supporting Defence Codes of Practice (DCOP).

This DSA02 Regulation replaces Joint Service Publication 433 (JSP 433), which should no longer be used.

Published 24 February 2017
Last updated 12 November 2018 + show all updates
  1. Added announcement to confirm these regulations will be superseded in January 2019.
  2. First published.