304th Sustainment Brigade (United States)

The 304th Sustainment Brigade is a sustainment brigade of the United States Army Reserve. 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.

Organization

The 304th Sustainment Brigade is a subordinate unit of the 311th Expeditionary Sustainment Command. As of January 2026 the brigade consists of the following units:304th Sustainment Brigade, at March Air Reserve Base

* 304th Special Troops Battalion, at March Air Reserve Base
** Headquarters and Headquarters Company, 304th Sustainment Brigade, at March Air Reserve Base
** 397th Brigade Signal Company, at March Air Reserve Base
* 155th Combat Sustainment Support Battalion, in [South El Monte, California|El Monte, California|South El Monte]
** Headquarters and Headquarters Company, 155th Combat Sustainment Support Battalion, in South El Monte
** 137th Quartermaster Company, in South El Monte
** 250th Transportation Medium Truck Company, in South El Monte
** 250th Quartermaster Company, in Los Angeles
** 312th Human Resources Company, in San Diego
*** 3rd Platoon, 312th Human Resources Company, in Mesa
** 387th Quartermaster Company, in Costa Mesa
** 555th Transportation Detachment, in South El Monte
* 371st Combat Sustainment Support Battalion, at March Air Reserve Base
** Headquarters and Headquarters Company, 371st Combat Sustainment Support Battalion, at March Air Reserve Base
** 63rd Human Resources Company, at March Air Reserve Base
*** 1st Platoon, 63rd Human Resources Company, in Bell
** 304th Transportation Detachment, at March Air Reserve Base
** 329th Quartermaster Company, at March Air Reserve Base
** 376th Human Resources Company, in Bell
*** 5th Platoon, 376th Human Resources Company, in Sherman Oaks
** 693rd Quartermaster Company, in Bell
** 806th Adjutant General Detachment, at March Air Reserve Base
** 950th Ordnance Company, at March Air Reserve Base
* 420th Transportation Battalion , in Sherman Oaks
** Headquarters and Headquarters Detachment, 420th Transportation Battalion, in Sherman Oaks
** 211th Transportation Company, in Garden Grove
** 566th Transportation Detachment, in Bell
** 570th Transportation Detachment, in Sherman Oaks
** 650th Transportation Detachment, in El Monte
** 730th Transportation Medium Truck Company, in Bell
** 975th Transportation Detachment, at Garden Grove

Abbreviations: PLS — Palletized Load System; EAB — Echelon Above Brigade

Operation Iraqi Freedom

The Brigade deployed to support Operation Iraqi Freedom in late 2008. The brigade relieved the 55th Sustainment Brigade and supported Multi-National Division North and Baghdad.

Operation Enduring Freedom/Operation Inherent Resolve

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. The Unit fell in under the 311th ESC and the 1st TSC while in Kuwait.