opinion: UNITED STATES et al. v. SASKATCHEWAN MINERALS.
  No. 525.
  Decided November 14, 1966.
  Solicitor General Marshall, Assistant Attorney General Turner, Howard E. Shapiro, Robert W. Ginnane, Fritz R. Kahn and Betty Jo Christian for the United States et al. in No. 625.
  Charles W. Burkett, W. Harney Wilson, Arthur A. Arsham and Willard P. Scott for appellants in No. 526.
  Wayne W. Wright for appellee in both cases.
  Together with No. 526, Great Northern Railway Co. et al. v. Saskatchewan Minerals, also on appeal from the same court.
  Per Curiam.
  These appeals are from an amended judgment of a three-judge district court, 253 F. Supp. 504, which set aside an order of the Interstate Commerce Commission dismissing appellee’s complaint, 325 I. C. C. 621, and remanded the case to the Commission “for further proceedings with instructions to grant relief” to the appellee “in accordance with the opinion heretofore entered by this court on December 8, 1965, and the Supplemental Memorandum Decision entered by this Court on March 3, 1966.” Accepting the District Court’s decision to set aside the Commission’s order on the merits, appellants challenge that portion of the judgment which instructs the Commission to grant relief to the appellee and precludes the Commission from reopening the proceedings for the receipt of additional evidence relevant to the question whether the rates challenged by the appellee are in fact unreasonably preferential in violation of § 3 (1) of the Interstate Commerce Act, 49 U. S. C. § 3 (1). We agree with the appellants that, under the circumstances present here, this restriction is an improper limitation on the Commission’s duty to reconsider the entire case. Arrow Transp. Co. v. Cincinnati, N. O. & T. P. R. Co., 379 U. S. 642. Accordingly, the. judgment of the District Court is vacated and the cases are remanded to the District Court with instructions to enter an order remanding the case to the Commission for further proceedings consistent with the District Court’s opinion of December 8, 1965.
  It is so ordered.
instruction: What follows is an opinion from the Supreme Court of the United States. Your task is to determine the bases on which the Supreme Court rested its decision with regard to the legal provision that the Court considered in the case. Consider "judicial review (national level)" if the majority determined the constitutionality of some action taken by some unit or official of the federal government, including an interstate compact. Consider "judicial review (state level)" if the majority determined the constitutionality of some action taken by some unit or official of a state or local government. Consider "statutory construction" for cases where the majority interpret a federal statute, treaty, or court rule; if the Court interprets a federal statute governing the powers or jurisdiction of a federal court; if the Court construes a state law as incompatible with a federal law; or if an administrative official interprets a federal statute. Do not consider "statutory construction" where an administrative agency or official acts "pursuant to" a statute, unless the Court interprets the statute to determine if administrative action is proper. Consider "interpretation of administrative regulation or rule, or executive order" if the majority treats federal administrative action in arriving at its decision.Consider "diversity jurisdiction" if the majority said in approximately so many words that under its diversity jurisdiction it is interpreting state law. Consider "federal common law" if the majority indicate that it used a judge-made "doctrine" or "rule; if the Court without more merely specifies the disposition the Court has made of the case and cites one or more of its own previously decided cases unless the citation is qualified by the word "see."; if the case concerns admiralty or maritime law, or some other aspect of the law of nations other than a treaty; if the case concerns the retroactive application of a constitutional provision or a previous decision of the Court; if the case concerns an exclusionary rule, the harmless error rule (though not the statute), the abstention doctrine, comity, res judicata, or collateral estoppel; or if the case concerns a "rule" or "doctrine" that is not specified as related to or connected with a constitutional or statutory provision. Consider "Supreme Court supervision of lower federal or state courts or original jurisdiction" otherwise (i.e., the residual code); for issues pertaining to non-statutorily based Judicial Power topics; for cases arising under the Court's original jurisdiction; in cases in which the Court denied or dismissed the petition for review or where the decision of a lower court is affirmed by a tie vote; or in workers' compensation litigation involving statutory interpretation and, in addition, a discussion of jury determination and/or the sufficiency of the evidence.