The Maritime Security Response Team (MSRT) is a maritime counter-terrorism and high risk law enforcement unit of the United States Coast Guard. Offically formed in 2004 as the Security Response Team One (SRT-1) and then renamed the Enhanced-MSST. However, it was offically formed in 2006. They are organized into the Deployable Specialized Forces. They are the only rapidly deployable unit in the United States Coast Guard. They train with the Navy SEALS, SWCC, 75th Ranger Regiment, and other Special Operations forces, including some foreign units.
Most MSRT members come from the TACLET and MSST Teams.