CE ▁to ▁the ▁National ▁Prote ction ▁Program s ▁Director ate . ▁ ▁Origin ally ▁a ▁part ▁of ▁the ▁U . S . ▁Custom s ▁Service ' s ▁Office ▁of ▁Investig ations , ▁the ▁Office ▁of ▁Air ▁and ▁Marine ▁( then ▁called ▁the ▁Air ▁and ▁Marine ▁Inter diction ▁Division ) ▁was ▁transferred ▁to ▁I CE ▁in ▁ 2 0 0 3 ▁during ▁the ▁creation ▁of ▁the ▁Department ▁of ▁Hom eland ▁Security , ▁becoming ▁the ▁Office ▁of ▁Air ▁and ▁Marine ▁Oper ations . ▁Due ▁in ▁part ▁to ▁a ▁ 5 0 0 ▁million ▁doll ar ▁budget ary ▁dispute ▁between ▁C B P ▁and ▁I CE , ▁in ▁ 2 0 0 4 ▁I CE ▁Air ▁and ▁Marine ▁Oper ations ▁was ▁transferred ▁to ▁U . S . ▁Custom s ▁and ▁Border ▁Prote ction . ▁C B P ▁Air ▁and ▁Marine ▁still ▁works ▁closely ▁with ▁I CE ▁to ▁support ▁the ▁ag ency ' s ▁domestic ▁and ▁international ▁law ▁enfor cement ▁operations . ▁ ▁The ▁Office ▁of ▁Det ention ▁Policy ▁and ▁Pl anning ▁was ▁responsible ▁developing ▁and ▁maintain ing ▁I CE ' s ▁National ▁Det ention ▁Stand ards , ▁which ▁set ▁out ▁detailed ▁rules ▁for ▁how ▁imm igration ▁d eta ine es ▁were ▁to ▁be ▁treated ▁differently ▁than ▁criminal ▁in m ates . ▁ ▁In ▁April ▁ 2 0 1 7 , ▁President ▁Donald ▁Trump ▁decided ▁to ▁close ▁the ▁office ▁and ▁to ▁stop ▁including ▁the ▁standards ▁in ▁new ▁j ail ▁contract s . ▁ ▁Ass istant ▁Secret aries ▁and ▁Direct ors ▁ ▁Training ▁ ▁New ly ▁h ired