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.

Opinion:
HARRIS TRUCK LINES, INC., v. CHERRY MEAT PACKERS, INC.
No. 435.
Decided December 17, 1962.
Harlan L. Hackbert for petitioner.
John J. Kelly, Jr. for respondent.
Per Curiam.
The petition for writ of certiorari is granted and the judgment is vacated. Petitioner, a presently defunct interstate motor carrier which had its principal place of business in California, sued respondent, a shipper, in the District Court for the Northern District of Illinois for underpayment of freight charges. Respondent counterclaimed for damages to its freight. Local trial counsel was engaged for the suit by petitioner’s general counsel in Los Angeles. The trial court ultimately dismissed petitioner’s complaint and entered judgment for respondent for $11,347.52 on its counterclaim. Petitioner filed a motion for new trial, which was denied on June 28, 1961. On that date petitioner’s general counsel, who by virtue of the fact that petitioner was winding up its business during 1961 had been delegated sole responsibility for all corporate decisions with respect to pending litigation, was vacationing in Mexico and could not be reached. He did not return to this country until July 20. In view of trial counsel’s inability to contact the general counsel in order to ask whether to appeal, he instead came before the District Court in Illinois on July 13, stated his problem, and asked for an extension of time within which to appeal beyond the 30-day limit prescribed by Fed. Rules Civ. Proc., 73 (a), an extension which by the terms of the rule is limited to a period “not exceeding 30 days from the expiration of the original time herein prescribed.” Opposing counsel, having been given notice, was present. The motion judge granted an extra two weeks, until August 11. Notice of appeal was filed on August 11. The Court of Appeals initially denied a motion of respondent to dismiss the appeal, and called for briefs on the merits. The court thereafter reconsidered and dismissed the appeal, holding that a showing of “excusable neglect based on a failure of a party to learn of the entry of the judgment,” Fed. Rules Civ. Proc., 73 (a), had not been made out to the motion judge, that there was hence no basis for waiving the 30-day limit, and that the appeal was untimely filed and had to be dismissed for lack of appellate jurisdiction: 303 F. 2d 609.
The District Court properly entertained the motion here in question to extend petitioner’s time to appeal to the Court of Appeals before the initial 30 days allowed for docketing the appeal had elapsed. Fed. Rules Civ. Proc., 73 (a), which governs here, is not limited to motions made after the 30 days have expired. See 7 Moore, Federal Practice (2d ed. 1955), ¶ 73.09 [3]; North Umberland Mining Co. v. Standard Acc. Ins. Co., 193 F. 2d 951, 952 (C. A. 9th Cir. 1952); Plant Economy, Inc., v. Mirror Insulation Co., 308 F. 2d 275, 276-277 (C. A. 3d Cir. 1962). The standard applicable on such a motion, whether it is made before or after the 30 days have run, is that the movant must show “excusable neglect based on a failure of a party to learn of the entry of the judgment,” Fed. Rules Civ. Proc., 73 (a). Compare 7 Moore, supra, ¶ 73.09 [3]; Notes of Advisory Committee on 1946 Amendments to Rule 73 (a), quoted in 7 Moore, supra, ¶ 73.01 [5], at p. 3111; Knowles v. United States, 260 F. 2d 852, 854 (C. A. 5th Cir. 1958). In view of the obvious great hardship to a party who relies upon the trial judge’s finding of “excusable neglect” prior to the expiration of the 30-day period and then suffers reversal of the finding, it should be given great deference by the reviewing court. Whatever the proper result as an initial matter on the facts here, the record contains a showing of unique circumstances sufficient that the Court of Appeals ought not to have disturbed the motion judge’s ruling. The judgment is vacated and the case is remanded to the Court of Appeals so that petitioner’s appeal may be heard on its merits.

Question: What is the basis of the Supreme Court's decision?

Choices:
judicial review (national level)
judicial review (state level)
Supreme Court supervision of lower federal or state courts or original jurisdiction
statutory construction
interpretation of administrative regulation or rule, or executive order
diversity jurisdiction
federal common law

Answer: 2
3