opinion: Per Curiam.
  The State of Illinois moved to file its bill of complaint in this case on the theory that a “reciprocal treaty” between the States of Illinois and Michigan was violated by a decision of the Supreme Court of the State of Michigan which allowed recovery by two injured workmen against an Illinois re-insurance company. Federoff v. Ewing, 386 Mich. 474, 192 N. W. 2d 242 (1971). It claims that such an agreement arose when the two States enacted the Uniform Insurers Liquidation Act, which contains certain reciprocal features, and that the agreement has the dignity of an interstate compact.
  The State of Illinois was a party to the case decided by the Supreme Court of Michigan through the person of the Director of Insurance of the State of Illinois, who was the liquidator of the workmen's compensation insurer, Highway Insurance Co. It was the imposition of liability upon that company’s re-insurer which Illinois claims was inappropriate under the uniform act. Review of the Michigan decision should have been sought in that case by means of a petition for writ of certiorari.
  It is now too late for any such petition for certiorari to be filed. But original jurisdiction of the Court is not an alternative to the redress of grievances which could have been sought in the normal appellate process, if the remedy had been timely sought.
  The problem presented is essentially one between private litigants and, though the point now raised may not have been presented in the Michigan litigation, these controversies áre recurring and essentially not state concerns.
  While the complaint on its face is within our original, as well as our exclusive, jurisdiction, it seems apparent from the moving papers and the response that Illinois, though nominally a party, is here “in the vindication of the grievances of particular individuals.” Louisiana v. Texas, 176 U. S. 1, 16.
  The motions to file briefs amici curiae by Jack Federoff, William F. Ewing, dba William Ewing Roofing Co., and John H. Shannon are granted.
  The motion of the State of Illinois for leave to file a bill of complaint is denied.
  See generally Frankfurter & Landis, The Compact Clause of the Constitution — a Study in Interstate Adjustments, 34 Yale L. J. 685 (1925); Engdahl, Characterization of Interstate Arrangements: When is a Compact not a Compact?, 64 Mich. L. Rev. 63 (1965); Note, At the Intersection of Jurisdiction and Choice of Law, 59 Calif. L. Rev. 1514 (1971).
choices: comity: civil rights comity: criminal procedure comity: First Amendment comity: habeas corpus comity: military comity: obscenity comity: privacy comity: miscellaneous comity primarily removal cases, civil procedure (cf. comity, criminal and First Amendment); deference to foreign judicial tribunals assessment of costs or damages: as part of a court order Federal Rules of Civil Procedure including Supreme Court Rules, application of the Federal Rules of Evidence, Federal Rules of Appellate Procedure in civil litigation, Circuit Court Rules, and state rules and admiralty rules judicial review of administrative agency's or administrative official's actions and procedures mootness (cf. standing to sue: live dispute) venue no merits: writ improvidently granted no merits: dismissed or affirmed for want of a substantial or properly presented federal question, or a nonsuit no merits: dismissed or affirmed for want of jurisdiction (cf. judicial administration: Supreme Court jurisdiction or authority on appeal from federal district courts or courts of appeals) no merits: adequate non-federal grounds for decision no merits: remand to determine basis of state or federal court decision (cf. judicial administration: state law) no merits: miscellaneous standing to sue: adversary parties standing to sue: direct injury standing to sue: legal injury standing to sue: personal injury standing to sue: justiciable question standing to sue: live dispute standing to sue: parens patriae standing standing to sue: statutory standing standing to sue: private or implied cause of action standing to sue: taxpayer's suit standing to sue: miscellaneous judicial administration: jurisdiction or authority of federal district courts or territorial courts judicial administration: jurisdiction or authority of federal courts of appeals judicial administration: Supreme Court jurisdiction or authority on appeal or writ of error, from federal district courts or courts of appeals (cf. 753) judicial administration: Supreme Court jurisdiction or authority on appeal or writ of error, from highest state court judicial administration: jurisdiction or authority of the Court of Claims judicial administration: Supreme Court's original jurisdiction judicial administration: review of non-final order judicial administration: change in state law (cf. no merits: remand to determine basis of state court decision) judicial administration: federal question (cf. no merits: dismissed for want of a substantial or properly presented federal question) judicial administration: ancillary or pendent jurisdiction judicial administration: extraordinary relief (e.g., mandamus, injunction) judicial administration: certification (cf. objection to reason for denial of certiorari or appeal) judicial administration: resolution of circuit conflict, or conflict between or among other courts judicial administration: objection to reason for denial of certiorari or appeal judicial administration: collateral estoppel or res judicata judicial administration: interpleader judicial administration: untimely filing judicial administration: Act of State doctrine judicial administration: miscellaneous Supreme Court's certiorari, writ of error, or appeals jurisdiction miscellaneous judicial power, especially diversity jurisdiction