ant ▁Pet ition ▁for ▁Ali en ▁Work er ▁is ▁a ▁form ▁submitted ▁to ▁the ▁( US C IS ) ▁by ▁a ▁pros pective ▁employ er ▁to ▁pet ition ▁an ▁al ien ▁to ▁work ▁in ▁the ▁US ▁on ▁a ▁permanent ▁basis . ▁This ▁is ▁done ▁in ▁the ▁case ▁when ▁the ▁worker ▁is ▁de emed ▁extraordinary ▁in ▁some ▁sense ▁or ▁when ▁qualified ▁workers ▁do ▁not ▁exist ▁in ▁the ▁US . ▁The ▁employ er ▁who ▁files ▁is ▁called ▁the ▁pet ition er , ▁and ▁the ▁al ien ▁employee ▁is ▁called ▁the ▁benef ici ary ; ▁these ▁two ▁can ▁co inci de ▁in ▁the ▁case ▁of ▁a ▁self - pet ition er . ▁The ▁form ▁is ▁ 6 ▁pages ▁long ▁with ▁a ▁separate ▁ 1 0 - page ▁instructions ▁document ▁as ▁of ▁ 2 0 1 6 . ▁It ▁is ▁one ▁of ▁the ▁US C IS ▁imm igration ▁forms . ▁ ▁Re asons ▁for ▁fil ing ▁Form ▁I - 1 4 0 ▁ ▁Form ▁I - 1 4 0 ▁is ▁required ▁for ▁E B ▁categories ▁E B - 1 , ▁E B - 2 , ▁and ▁E B - 3 . ▁For ▁E B - 4 ▁and ▁E B - 5 , ▁Form s ▁I - 3 6 0 ▁and ▁I - 5 2 6 ▁are ▁used , ▁respectively . ▁These ▁categories ▁were ▁introduced ▁as ▁part ▁of ▁the ▁Im m igration ▁Act ▁of ▁ 1 9 9 0 . ▁ ▁The ▁following ▁is ▁a ▁list ▁of ▁all ▁of ▁the ▁reasons ▁( also ▁known ▁as ▁pet ition ▁types