Justice Powell
delivered the opinion of the Court.
The Rules of the Supreme Court of New Hampshire limit bar admission to state residents. We here consider whether this restriction violates the Privileges and Immunities Clause of the United States Constitution, Art. IV, § 2.
HH
A
Kathryn Piper lives in Lower Waterford, Vermont, about 400 yards from the New Hampshire border. In 1979, she applied to take the February 1980 New Hampshire bar examination. Piper submitted with her application a statement of intent to become a New Hampshire resident. Following an investigation, the Board of Bar Examiners found that Piper was of good moral character and met the other requirements for admission. She was allowed to take, and passed, the examination. Piper was informed by the Board that she would have to establish a home address in New Hampshire prior to being sworn in.
On May 7, 1980, Piper requested from the Clerk of the New Hampshire Supreme Court a dispensation from the residency requirement. Although she had a “possible job” with a lawyer in Littleton, New Hampshire, Piper stated that becoming a resident of New Hampshire would be inconvenient. Her house in Vermont was secured by a mortgage with a favorable interest rate, and she and her husband recently had become parents. According to Piper, these “problems peculiar to [her] situation . . . warranted] that an exception be made.” Letter from Appellee to Ralph H. Wood, Esq., Clerk of N. H. Supreme Court, App. 13.
On May 13, 1980, the Clerk informed Piper that her request had been denied. She then formally petitioned the New Hampshire Supreme Court for permission to become a member of the bar. She asserted that she was well qualified and that her “situation [was] sufficiently unique that the granting of an exception . . . [would] not result in the setting of any undesired precedent.” Letter of Nov. 8, 1980, from Appellee to Hon. William A. Grimes, then Chief'Justice of the N. H. Supreme Court, App. 15. The Supreme Court denied Piper’s formal request on December 31, 1980.
B
On March 22, 1982, Piper filed this action in the United States District Court for the District of New Hampshire. She named as defendants the State Supreme Court, its five Justices, and its Clerk. She alleged that Rule 42 of the New Hampshire Supreme Court, that excludes nonresidents from the bar, violates the Privileges and Immunities Clause of Art. IV, § 2, of the United States Constitution.
On May 17,1982, the District Court granted Piper’s motion for summary judgment. 539 F. Supp. 1064. The court first stated that the opportunity to practice law is a “fundamental” right within the meaning of Baldwin v. Montana Fish & Game Comm’n, 436 U. S. 371 (1978). It then found that Piper had been denied this right in the absence of a “substantial reason,” 539 F. Supp., at 1072, and that Rule 42 was not “closely tailored” to achieve its intended goals, id., at 1073. The court therefore concluded that New Hampshire’s residency requirement violated the Privileges and Immunities Clause.
An evenly divided Court of Appeals for the First Circuit, sitting en banc, affirmed the judgment in favor of Piper. 723 F. 2d 110 (1983). The prevailing judges held that Rule 42 violated the Privileges and Immunities Clause. After finding that Art. IV, § 2, protects an individual’s right to “ ‘pursue a livelihood in a State other than his own,”’ id., at 112, (quoting Baldwin v. Montana Fish & Game Comm’n, supra, at 386), the judges applied the two-part test set forth in Hicklin v. Orbeck, 437 U. S. 518 (1978). They concluded that there was no “substantial reason” for the different treatment of nonresidents and that the challenged discrimination bore no “substantial relationship” to the State’s, objectives. See id., at 525-527.
The dissenting judges found that the New Hampshire Supreme Court’s residency requirement did not violate the Privileges and Immunities Clause. While recognizing that Rule 42 may “serve the less than commendable purpose of insulating New Hampshire practitioners from out-of-state competition,” 723 F. 2d, at 119, they found several “substantial” reasons to’ justify discrimination against nonresidents. If the residency requirement were abolished, “large law firms in distant states” might exert significant influence over the state bar. Ibid. These nonresident lawyers would be unfamiliar with local customs and would be less likely to perform pro bono work within the State. The dissenting judges further believed the District Court’s judgment was inconsistent with our decision in Leis v. Flynt, 439 U. S. 438 (1979) (per curiam).
The Supreme Court of New Hampshire filed a timely notice of appeal, and we noted probable jurisdiction. 466 U. S. 949 (1984). We now affirm the judgment of the court below.
l — l i — (
Article IV, § 2, of the Constitution provides that the Citi-
zens of each State shall be entitled to all Privileges and Immunities of Citizens in the several States.” This Clause was intended to “fuse into one Nation a collection of independent, sovereign States.” Toomer v. Witsell, 334 U. S.s 385, 395 (1948). Recognizing this purpose, we have held that it is “[o]nly with respect to those ‘privileges’ and ‘immunities’ bearing on the vitality of the Nation as a single entity” that a State must accord residents and nonresidents equal treatment. Baldwin v. Montana Fish & Game Comm’n, swpra, at 383. In Baldwin, for example, we concluded that a State may charge a nonresident more than it charges a resident for the same elk-hunting license. Because elk hunting is “recreation” rather than a “means of a livelihood,” we found that the right to a hunting license was not “fundamental” to the promotion of interstate harmony. 436 U. S., at 388.
Derived, like the Commerce Clause, from the fourth of the Articles of Confederation, the Privileges and Immunities Clause was intended to create a national economic union. It is therefore not surprising that this Court repeatedly has found that “one of the privileges which the Clause guarantees to citizens of State A is that of doing business in State B on terms of substantial equality with the citizens of that State.” Toomer v. Witsell, supra, at 396. In Ward v. Maryland, 12 Wall. 418 (1871), the Court invalidated a statute under which nonresidents were required to pay $300 per year for a license to trade in goods not manufactured in Maryland, while resident traders paid a fee varying from $12 to $150. Similarly, in Toomer, supra, the Court held that nonresident fishermen could not be required to pay a license fee of $2,500 for each shrimp boat owned when residents were charged only $25 per boat. Finally, in Hicklin v. Orbeck, 437 U. S. 518 (1978), we found violative of the Privileges and Immunities Clause a statute containing a resident hiring preference for all employment related to the development of the State’s oil and gas resources.
There is nothing in Ward, Toomer, or Hicklin suggesting that the practice of law should not be viewed as a “privilege” under Art. IV, §2. Like the occupations considered in our earlier cases, the practice of law is important to the national economy. As the Court noted in Goldfarb v. Virginia State Bar, 421 U. S. 773, 788 (1975), the “activities of lawyers play an important part in commercial intercourse.”
The lawyer’s role in the national economy is not the only reason that the opportunity to practice law should be considered a “fundamental right.” We believe that the legal profession has a noncommercial role and duty that reinforce the view that the practice of law falls within the ambit of the Privileges and Immunities Clause. Out-of-state lawyers may — and often do — represent persons who raise unpopular federal claims. In some cases, representation by nonresident counsel may be the only means available for the vindication of federal rights. See Leis v. Flynt, 439 U. S., at 450 (Stevens, J., dissenting). The lawyer who champions unpopular causes surely is as important to the “maintenance or well-being of the Union,” Baldwin, 436 U. S., at 388, as was the shrimp fisherman in Toomer or the pipeline worker in Hicklin.
B
Appellant asserts that the Privileges and Immunities Clause should be held inapplicable to the practice of law because a lawyer’s activities are “bound up with the exercise of judicial power and the administration of justice.” Its contention is based on the premise that the lawyer is an “officer of the court,” who “exercises state power on a daily basis.” Appellant concludes that if the State cannot exclude nonresidents from the bar, its ability to function as a sovereign political body will be threatened.
Lawyers do enjoy a “broad monopoly... to do things other citizens may not lawfully do.” In re Griffiths, 413 U. S. 717, 731 (1973). We do not believe, however, that the practice of law involves an “exercise of state power” justifying New Hampshire’s residency requirement. In In re Griffiths, supra, we held that the State could not exclude an alien from
the bar on the ground that a lawyer is an “‘officer of the Court who’... is entrusted with the ‘exercise of actual governmental power.’” Id., at 728 (quoting Brief for Appellee in In re Griffiths, O. T. 1972, No. 71-1336, p. 5). We concluded that a lawyer is not an “officer” within the ordinary meaning of that word. 413 U. S., at 728. He “‘makes his own decisions, follows his own best judgment, collects his own fees and runs his own business.’” Id., at 729 (quoting Cammer v. United States, 350 U. S. 399, 405 (1956)). Moreover, we held that the state powers entrusted to lawyers do not “involve matters of state policy or acts of such unique responsibility as to entrust them only to citizens.” 413 U. S., at 724.
Because, under Griffiths, a lawyer is not an “officer” of the State in any political sense, there is no reason for New Hampshire to exclude from its bar nonresidents. We therefore conclude that the right to practice law is protected by the Privileges and Immunities Clause.
The conclusion that Rule 42 deprives nonresidents of a protected privilege does not end our inquiry. The Court has stated that “[l]ike many other constitutional provisions, the privileges and immunities clause is not an absolute.” Toomer v. Witsell, 334 U. S., at 396; see United Building & Construction Trades Council v. Mayor & Council of Camden, 465 U. S. 208, 222 (1984). The Clause does not preclude discrimination against nonresidents where (i) there is a substantial reason for the difference in treatment; and (ii) the discrimination practiced against nonresidents bears a substantial relationship to the State’s objective. Ibid. In deciding whether the discrimination bears a close or substantial relationship to the State’s objective, the Court has considered the availability of less restrictive means.
* — 1
HH
HH
The Supreme Court of New Hampshire offers several justifications for its refusal to admit nonresidents to the bar. It asserts that nonresident members would be less likely (i) to become, and remain, familiar with local rules and procedures; (ii) to behave ethically; (iii) to be available for court proceedings; and (iv) to do pro bono and other volunteer work in the State. We find that none of these reasons meets the test of “substantiality,” and that the means chosen do not,bear the necessary relationship to the State’s objectives.
There is no evidence to support appellant’s claim that nonresidents might be less likely to keep abreast of local rules and procedures. Nor may we assume that a nonresident lawyer — any more than a resident — would disserve his clients by failing to familiarize himself with the rules. As a practical matter, we think that unless a lawyer has, or anticipates, a considerable practice in the New Hampshire courts, he would be unlikely to take the bar examination and pay the annual dues of $125.
We also find the appellant’s second justification to be without merit, for there is no reason to believe that a nonresident lawyer will conduct his practice in a dishonest manner. The nonresident lawyer’s professional duty and interest in his reputation should provide the same incentive to maintain high ethical standards as they do for resident lawyers. A lawyer will be concerned with his reputation in any community where he practices, regardless of where he may live. Furthermore, a nonresident lawyer may be disciplined for unethical conduct. The Supreme Court of New Hampshire has the authority to discipline all members of the bar, regardless of where they reside. See N. H. Sup. Ct. Rule 37.
There is more merit to appellant’s assertion that a nonresident member of the bar at times would be unavailable for court proceedings. In the course of litigation, pretrial hearings on various matters often are held on short notice. At times a court will need to confer immediately with counsel. Even the most conscientious lawyer residing in a distant State may find himself unable to appear in court for an unscheduled hearing or proceeding. Nevertheless, we do not believe that this type of problem justifies the exclusion of nonresidents from the state bar. One may assume that a high percentage of nonresident lawyers willing to take the state bar examination and pay the annual dues will reside in places reasonably convenient to New Hampshire. Furthermore, in those cases where the nonresident counsel will be unavailable on short notice, the State can protect its interests through less restrictive means. The trial court, by rule or as an exercise of discretion, may require any lawyer who resides at a great distance to retain a local attorney who will be available for unscheduled meetings and hearings.
The final reason advanced by appellant is that nonresident members of the state bar would be disinclined to do their share of pro bono and volunteer work. Perhaps this is true to a limited extent, particularly where the member resides in a distant location. We think it is reasonable to believe, however, that most lawyers who become members of a state bar wall endeavor to perform their share of these services. This sort of participation, of course, would serve the professional interest of a lawyer who practices in the State. Furthermore, a nonresident bar member, like the resident member, could be required to represent indigents and perhaps to participate in formal legal-aid work.
In summary, appellant neither advances a “substantial reason” for its discrimination against nonresident applicants to the bar, nor demonstrates that the discrimination practiced bears a close relationship to its proffered objectives.
> HH
We conclude that New Hampshire’s bar residency requirement violates the Privileges and Immunities Clause of Art. IV, §2, of the United States Constitution. The nonresident’s interest in practicing law is a “privilege” protected by the Clause. Although the lawyer is “an officer of the court,” he does not hold a position that can be entrusted only to a “full-fledged member of the political community.” A State may discriminate against nonresidents only where its reasons are “substantial,” and the difference in treatment bears a close or substantial relation to those reasons. No such showing has been made in this case. Accordingly, we affirm the judgment of the Court of Appeals.
It is so ordered.
Rule 42 does not provide explicitly that only New Hampshire residents may be admitted to the bar. It does require, however, that an applicant either be a resident of New Hampshire or file a statement of intent to reside there. N. H. Sup. Ct. Rule 42(3). In an affidavit submitted to the District Court, the Chief Justice of the Supreme Court of New Hampshire said that under the Rule, an applicant for admission must be “a bona fide resident of the State ... at the time that the oath of office ... is administered.” Affidavit of John W. King, App. 32. Accordingly, the parties agree that the refusal to admit Piper to the bar was based on Rule 42.
Piper was not excluded totally from the practice of law in New Hampshire. Out-of-state lawyers may appear pro hac vice in state court. This alternative, however, does not allow the nonresident to practice in New Hampshire on the same terms as a resident member of the bar. The lawyer appearing pro hac vice must be associated with a local lawyer who is present for trial or argument. See N. H. Sup. Ct. Rule 33(1); N. H. Super. Ct. Rule 19. Furthermore, the decision on whether to grant pro hac vice status to an out-of-state lawyer is purely discretionary. See Leis v. Flynt, 439 U. S. 438, 442 (1979) (per curiam).
The District Court did not consider Piper’s claims that Rule 42: (i) deprived her of property without due process of law, in violation of the Fourteenth Amendment; (ii) denied her equal protection of the law, in violation of the Fourteenth Amendment; and (iii) placed an undue burden upon interstate commerce, in violation of Art. I, § 8, of the United States Constitution. The Court of Appeals did not address these claims, and our resolution of this case makes it unnecessary for us to reach them.
The panel, with one judge dissenting, had reversed the District Court’s judgment. 723 F. 2d 98 (1983).
The prevailing judges thought it significant that three State Supreme Courts had invalidated their own bar residency requirements. Sargus v. West Virginia Board of Law Examiners,-W. Va.-, 294 S. E. 2d 440 (1982); Noll v. Alaska Bar Assn., 649 P. 2d 241 (Alaska 1982); Gordon v. Committee on Character and Fitness, 48 N. Y. 2d 266, 397 N. E. 2d 1309 (1979). Since the Court of Appeals decision in this case, another State Supreme Court has reached the same conclusion. In re Jadd, 391 Mass. 227, 461 N. E. 2d 760 (1984).
Under this Clause, the terms “citizen” and “resident” are used interchangeably. See Austin v. New Hampshire, 420 U. S. 656, 662, n. 8 (1975). Under the Fourteenth Amendment, of course, “[a]ll persons born or naturalized in the United States... are citizens ... of the State wherein they reside.”
Article IV of the Articles of Confederation provided:
“The better to secure and perpetuate mutual friendship and intercourse among the people of the different States in this Union, the free inhabitants of each of these States . . . shall be entitled to all privileges and immunities of free citizens in the several States; and the people of each State shall have free ingress and regress to and from any other State, and shall enjoy therein all the privileges of trade and commerce, subject to the same duties, impositions and restrictions as the inhabitants thereof. . . .”
Charles Pinckney, who drafted the Privileges and Immunities Clause, stated that it was “formed exactly upon the principles of the 4th article of the present Confederation.” 3 M. Farrand, Records of the Federal Convention of 1787, p. 112 (1911).
This Court has recognized the “mutually reinforcing relationship” between the Commerce Clause and the Privileges and Immunities Clause. Hicklin v. Orbeck, 437 U. S. 518, 531 (1978).
In United Building & Construction Trades Council v. Mayor & Council of Camden, 465 U. S. 208 (1984), we stated that “the pursuit of a common calling is one of the most fundamental of those privileges protected by the Clause.” Id., at 219. We noted that “[m]any, if not most, of our cases expounding the Privileges and Immunities Clause have dealt with this basic and essential activity.” Ibid.
In Corfield v. Coryell, 6 F. Cas. 546 (No. 3,230) (CCED Pa. 1825), Justice Bushrod Washington, sitting as Circuit Justice, stated that the “fundamental rights” protected by the Clause included:
“The right of a citizen of one state to pass through, or to reside in any other state, for purposes of trade, agriculture, professional pursuits, or otherwise; to claim the benefit of the writ of habeas corpus; to institute and maintain actions of any kind in the courts of the state; to take, hold and dispose of property, either real or personal. . . Id., at 552.
Thus in this initial interpretation of the Clause, “professional pursuits,” such as the practice of law, were said to be protected.
The “natural rights” theory that underlay Corfield was discarded long ago. Hague v. CIO, 307 U. S. 496, 511 (1939) (opinion of Roberts, J.); see Paul v. Virginia, 8 Wall. 168 (1869). Nevertheless, we have noted that those privileges on Justice Washington’s list would still be protected by the Clause. Baldwin v. Montana Fish & Game Comm’n, 436 U. S. 371, 387 (1978).
The Court has never held that the Privileges and Immunities Clause protects only economic interests. See Doe v. Bolton, 410 U. S. 179 (1973) (Georgia statute permitting only residents to secure abortions found violative of the Privileges and Immunities Clause).
Justice Rehnquist makes a similar argument in his dissent. He asserts that lawyers, through their adversary representation of clients’ interests, “play an important role in the formulation of state policy.” Post, at 293. He therefore concludes that the residency requirement is necessary to ensure that lawyers are “intimately conversant with the local concerns that should inform such policies.” Ibid. We believe that this argument, like the one raised by the State, is foreclosed by our reasoning in In re Griffiths, 413 U. S. 717 (1973). There, we held that the status of being licensed to practice law does not place a person so close to the core of the political process as to make him a “formulator of government policy.” Id., at 729.
We recognize that without certain residency requirements the State “would cease to be the separate political communit[y] that history and the constitutional text make plain w[as] contemplated.” Simson, Discrimination Against Nonresidents and the Privileges and Immunities Clause of Article IV, 128 U. Pa. L. Rev. 379, 387 (1979). A State may restrict to its residents, for example, both the right to vote, see Dunn v. Blumstein, 405 U. S. 330, 343, 344 (1972), and the right to hold state elective office. Baldwin v. Montana Fish & Game Comm’n, supra, at 383.
In Griffiths, supra, we were concerned with discrimination by a State against aliens. Such discrimination usually is subject to an enhanced level of scrutiny. Graham v. Richardson, 403 U. S. 365 (1971). The difference between the levels of scrutiny under the Equal Protection Clause and the Privileges and Immunities Clause, however, does not affect the relevance of Griffiths. There, we did not subject to “strict scrutiny” the State’s argument that the lawyer is “an officer of the court” entrusted with the “exercise of actual governmental power.” Instead, we considered this argument only in deciding whether “strict scrutiny” should be applied at all to the challenged classification. 413 U. S., at 727.
It is true that lawyers traditionally have been leaders in state and local affairs — political as well as cultural, religious, and civic. Their training qualifies them for this type of participation. Nevertheless, lawyers are not in any sense officials in the government simply by virtue of being lawyers.
Our conclusion that Rule 42 violates the Privileges and Immunities Clause is consistent with Leis v. Flynt, 439 U. S. 438 (1979). In Leis, we held that a lawyer could be denied, without the benefit of a hearing, permission to appear pro hac vice. We concluded that the States should be left free to “prescribe the qualifications for admission to practice and the standards of professional conduct” for those lawyers who appear in its courts. Id, at 442.
Our holding in this case does not interfere with the ability of the States to regulate their bars. The nonresident who seeks to join a bar, unlike the pro hac vice applicant, must have the same professional and personal qualifications required of resident lawyers. Furthermore, the nonresident member of the bar is subject to the full force of New Hampshire’s disciplinary rules. N. H. Sup. Ct. Rule 37. See n. 23, infra.
In Toomer v. Witsell, 334 U. S. 385 (1948), for example, the Court noted that the State could eliminate the danger of excessive trawling through less restrictive means: restricting the type of equipment used in its fisheries, graduating license fees according to the size of the boats, or charging nonresidents a differential to compensate for the added enforcement burden they imposed. Id., at 398-399.
The dissent asserts that less restrictive means are relevant only to the extent that they indicate that the State “had another, less legitimate goal in mind.” Presumably, the only goal that the dissent would view as “illegitimate” would be discrimination for its own sake. We do not believe, however, that the “less restrictive means” analysis has such a limited purpose in the privileges and immunities context. In some cases, the State may be required to achieve its legitimate goals without unnecessarily discriminating against nonresidents.
A former president of the American Bar Association has suggested another possible reason for the rule: “Many of the states that have erected fences against out-of-state lawyers have done so primarily to protect their own lawyers from professional competition.” Smith, Time for a National Practice of Law Act, 64 A. B. A. J. 557 (1978). This reason is not “substantial.” The Privileges and Immunities Clause was designed primarily to prevent such economic protectionism.
Because it is markedly over inclusive, the residency requirement does not bear a substantial relationship to the State’s objective. A less restrictive alternative would be to require mandatory attendance at periodic seminars on state practice. There already is a rule requiring all new admittees to complete a “practical skills course” within one year of their admission. N. H. Sup. Ct. Rule 42(7).
New Hampshire’s “simple residency” requirement is under inclusive as well, because it permits lawyers who move away from the State to retain their membership in the bar. There is no reason to believe that a former resident would maintain a more active practice in the New Hampshire courts than would a nonresident lawyer who had never lived in the State.
The New Hampshire Bar would be able to discipline a nonresident lawyer in the same manner in which it disciplines resident members. The Supreme Judicial Court of Massachusetts has stated that although there are over 5,000 nonresident members of the Massachusetts Bar, there has been no problem “obtaining jurisdiction over them for bar discipline purposes.” In re Jadd, 391 Mass., at 234, 461 N. E. 2d, at 765. A committee of the Oregon Bar voiced a similar sentiment: “[W]hy should it be more difficult for the Multnomah County courts to control an attorney from Vancouver, Washington, than from Lakeview, Oregon, if both attorneys are members of the Oregon Bar and subject to its rules and discipline?” Bar Admissions Study Committee, Report to the Supreme Court of Oregon 19 (Jan. 19, 1979).
In many situations, unscheduled hearings may pose only a minimal problem for the nonresident lawyer. Conference telephone calls are being used increasingly as an expeditious means of dispatching pretrial matters. Hanson, Olson, Shuart, & Thornton, Telephone Hearings in Civil Trial Courts: What Do Attorneys Think?, 66 Judicature 408, 408-409 (1983).
The El Paso, Texas, Bar has adopted a mandatory pro bono plan, under which each of its members must handle two divorce cases for indigents each year. Pro Bono Publico: Federal Legal-Aid Cuts Spur the Bar to Increase Free Work for the Poor, The Wall Street Journal, Mar. 30, 1984, pp. 1, 12.
Justice Rehnquist suggests another “substantial reason” for the residency requirement: the State’s “interest in maximizing the number of resident lawyers, so as to increase the quality of the pool from which its lawmakers can be drawn.” Post, at 292. Only 8 of the 424 members of New Hampshire’s bicameral legislature are lawyers. Statistics compiled by the Clerk of the New Hampshire House of Representatives and the Clerk of the New Hampshire Senate. Moreover, New Hampshire, unlike many other States, see, e. g., Mich. Const., Art. 6, § 19, does not prohibit nonlawyers from serving on its Supreme Court, N. H. Rev. Stat. Ann. § 490:1 et seq. (1983 and Supp. 1983), or its intermediate appellate court, N. H. Rev. Stat. Ann. § 491:1 et seq. (1983 and Supp. 1983). Therefore, it is not surprising that the dissent’s justification for the residency requirement was not raised by appellant or addressed by the courts below.
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.