It is headquartered at March Air Reserve Base near Riverside, California.

Originally the 304th Corps Materiel Management Center, the unit became the 304th Support Center and received a distinctive unit insignia in August 2005.

It then was transformed into a Sustainment Brigade in February 2006, and received its shoulder sleeve insignia in March 2006.

[2] in January, 2020, the 304th Brigade Headquarters, Headquarters Company and Special Troops Battalion were activated and deployed to Camp Arifjan Kuwait in support of logistical Operations throughout the Southwest Asia area of operations.

The 304th SB replaced the 77th SB during the COVID pandemic while supporting operations in Kuwait, Iraq, Afghanistan, Jordan Syria Saudi Arabia, UAE, and Qatar.