|Formed||1 April 2015|
|Headquarters||Main Building, Whitehall, Westminster|
|Parent agency||Ministry of Defence|
The Defence Safety Authority (DSA) is an agency of the United Kingdom Ministry of Defence which regulates safety and investigates accidents in the UK's Armed Forces.
The DSA was launched on 1 Apr 2015 and is headed by Air Marshal Sue Gray. The DSA brings together the Defence Safety and Environment Authority (DSEA), Military Aviation Authority (MAA) and Defence Fire Safety Regulator (DFSR), to form a single common managed organization under the leadership of a 3-star Director General (DG) – DG DSA. The Director-General is also the head of the Military Air Accident Investigation Branch (MilAAIB) and the Land Accident Investigation Team (LAIT).
The Directors-General have been: