▁March ▁Air ▁Reserve ▁Base ▁near ▁R ivers ide , ▁California . ▁ ▁Origin ally ▁the ▁ 3 0 4 th ▁Corps ▁M ater iel ▁Management ▁Center , ▁the ▁unit ▁became ▁the ▁ 3 0 4 th ▁Support ▁Center ▁and ▁received ▁a ▁distinct ive ▁unit ▁ins ign ia ▁in ▁August ▁ 2 0 0 5 . ▁It ▁then ▁was ▁transformed ▁into ▁a ▁S ust ain ment ▁Brigade ▁in ▁February ▁ 2 0 0 6 , ▁and ▁received ▁its ▁shoulder ▁sle e ve ▁ins ign ia ▁in ▁March ▁ 2 0 0 6 . ▁ ▁Sub ordinate ▁Units ▁ ▁The ▁brig ade ▁is ▁made ▁up ▁of ▁the ▁following ▁units : ▁ ▁Head quarters ▁and ▁Head quarters ▁Company ▁▁ 1 5 5 th ▁Techn ical ▁Manager ▁Pet rol ▁( Qual ity ▁Ass urance ) ▁▁▁ 6 0 6 th ▁Transport ation ▁Det achment ▁( P et rol ▁L ia ison ) ▁▁▁ 3 0 4 th ▁Special ▁Tro ops ▁Battalion ▁▁ 8 0 6 th ▁Det achment ▁( Mil it ary ▁Mail ▁Terminal ) ▁▁▁ 3 8 0 th ▁Det achment ▁( The ater ▁Oper ations ▁Element ) ▁▁▁ 3 9 7 th ▁Company ▁( Network ▁Support ) ▁▁▁ 3 8 7 th ▁Company ▁( Network ▁Support ) ▁▁ 1 5 5 th ▁Com bat ▁S ust ain ment ▁Support ▁Battalion ▁ ▁Head quarters ▁and ▁Head quarters ▁Company ▁▁ 6 9 3 rd ▁Qu arter master ▁Company ▁▁ 5 5 5 th ▁Transport ation ▁Det achment ▁( M ov ement ▁Control )( Area ) ▁▁▁ 1