Star Trek Expanded Universe

Task Force 13 was a Starfleet task force extant in the late 24th century. It was part of the Starfleet First Fleet.

In 2377-78, Commodore Selon was Task Force 13's commanding officer aboard the flagship USS Ronald E. McNair (a Nebula-class light cruiser commanded by Captain T'Spar). Task Force 13, deployed on a mission of exploration, was then homeported at Station Lewis B. Puller. (Ships of the Star Fleet, Vol. 4: Star Fleet Operating Forces. )