- d elivery ▁fin es . ▁The ▁Federal ▁government ▁file d ▁for ▁dismiss al ▁and ▁it ▁was ▁granted ▁in ▁February ▁ 2 0 1 7 . ▁▁ ▁The ▁State ▁of ▁South ▁Carolina ▁similarly ▁su ed ▁the ▁federal ▁government ▁over ▁the ▁term ination ▁of ▁the ▁project , ▁arg uing ▁that ▁the ▁Department ▁of ▁Energy ▁had ▁not ▁prepared ▁an ▁environmental ▁impact ▁statement ▁concerning ▁the ▁long - term ▁storage ▁of ▁plut on ium ▁in ▁the ▁state ▁and ▁addition ally ▁that ▁the ▁government ▁had ▁failed ▁to ▁follow ▁the ▁stat ut ory ▁prov isions ▁concerning ▁obtain ing ▁a ▁w ai ver ▁to ▁ce ase ▁construction ▁on ▁the ▁facility . ▁In ▁January ▁ 2 0 1 9 , ▁the ▁Four th ▁Circ uit ▁Court ▁of ▁App e als ▁rejected ▁South ▁Carolina ' s ▁suit ▁for ▁lack ▁of ▁standing ; ▁in ▁October ▁ 2 0 1 9 ▁the ▁U . S . ▁Supreme ▁Court ▁rejected ▁the ▁state ▁of ▁South ▁Carolina ' s ▁pet ition ▁of ▁cert ior ari , ▁thereby ▁allowing ▁the ▁lower ▁court ' s ▁r uling ▁to ▁stand ▁and ▁the ▁federal ▁government ▁to ▁terminate ▁construction . ▁ ▁In ▁May ▁ 2 0 1 8 , ▁Energy ▁Secretary ▁Rick ▁Perry ▁informed ▁Congress ▁he ▁had ▁effectively ▁ended ▁the ▁about ▁ 7 0 % ▁complete ▁project . ▁Perry ▁stated ▁that ▁the ▁cost ▁of ▁a ▁dil ute ▁and ▁dispose ▁approach ▁to ▁the ▁plut on ium ▁will ▁cost ▁less ▁than ▁half ▁of ▁the ▁remaining ▁lif ecycle ▁cost ▁of ▁the ▁MO X ▁plant ▁programme . ▁In ▁February ▁ 2 0 1 9 , ▁the