Pub. L. 93-380, tit. II, pt. B, sec. 256
additional priority of remedies
additional priority of remedies Sec. 256. Notwithstanding any other provision of law, after June 30, 1974 no court of the United States shall order the implementation of any plan to remedy a finding of de jure, segregation which involves the transportation of students, unless the court first finds that all alternative remedies are inadequate.