(Slip Opinion) OCTOBER TERM, 1999 1 Syllabus NOTE: Where it is feasible, a syllabus (headnote) will be released, as is being done in connection with this case, at the time the opinion is issued. The syllabus constitutes no part of the opinion of the Court but has been prepared by the Reporter of Decisions for the convenience of the reader. See United States v. Detroit Timber & Lumber Co., 200 U. S. 321, 337. SUPREME COURT OF THE UNITED STATES Syllabus CITY OF ERIE ET AL. v. PAP'S A. M., TDBA "KANDYLAND" CERTIORARI TO THE SUPREME COURT OF PENNSYLVANIA No. 98­1161. Argued November 10, 1999- Decided March 29, 2000 Erie, Pennsylvania, enacted an ordinance making it a summary offense to knowingly or intentionally appear in public in a "state of nudity." Respondent Pap's A. M. (hereinafter Pap's), a Pennsylvania corpora- tion, operated "Kandyland," an Erie establishment featuring totally nude erotic dancing by women. To comply with the ordinance, these dancers had to wear, at a minimum, "pasties" and a "G-string." Pap's filed suit against Erie and city officials, seeking declaratory relief and a permanent injunction against the ordinance's enforcement. The Court of Common Pleas struck down the ordinance as unconstitu- tional, but the Commonwealth Court reversed. The Pennsylvania Supreme Court in turn reversed, finding that the ordinance's public nudity sections violated Pap's right to freedom of expression as pro- tected by the First and Fourteenth Amendments. The Pennsylvania court held that nude dancing is expressive conduct entitled to some quantum of protection under the First Amendment, a view that the court noted was endorsed by eight Members of this Court in Barnes v. Glen Theatre, Inc., 501 U. S. 560. The Pennsylvania court explained that, although one stated purpose of the ordinance was to combat nega- tive secondary effects, there was also an unmentioned purpose to "im- pact negatively on the erotic message of the dance." Accordingly, the Pennsylvania court concluded that the ordinance was related to the suppression of expression. Because the ordinance was not content neutral, it was subject to strict scrutiny. The court held that the or- dinance failed the narrow tailoring requirement of strict scrutiny. After this Court granted certiorari, Pap's filed a motion to dismiss the case as moot, noting that Kandyland no longer operated as a nude dancing club, and that Pap's did not operate such a club at any other location. This Court denied the motion. 2 ERIE v. PAP'S A. M. Syllabus Held: The judgment is reversed, and the case is remanded. 553 Pa. 348, 719 A. 2d 273, reversed and remanded. JUSTICE O'CONNOR, delivered the opinion of the Court with respect to Parts I and II, concluding that the case is not moot. A case is moot when the issues presented are no longer "live" or the parties lack a legally cognizable interest in the outcome. County of Los Angeles v. Davis, 440 U. S. 625, 631. Simply closing Kandyland is not sufficient to moot the case because Pap's is still incorporated under Pennsylva- nia law, and could again decide to operate a nude dancing establish- ment in Erie. Moreover, Pap's failed, despite its obligation to the Court, to mention the potential mootness issue in its brief in opposi- tion, which was filed after Kandyland was closed and the property sold. See Board of License Comm'rs of Tiverton v. Pastore, 469 U. S. 238, 240. In any event, this is not a run of the mill voluntary cessa- tion case. Here it is the plaintiff who, having prevailed below, seeks to have the case declared moot. And it is the defendant city that seeks to invoke the federal judicial power to obtain this Court's re- view of the decision. Cf. ASARCO Inc. v. Kadish, 490 U. S. 605, 617­ 618. The city has an ongoing injury because it is barred from en- forcing the ordinance's public nudity provisions. If the ordinance is found constitutional, then Erie can enforce it, and the availability of such relief is sufficient to prevent the case from being moot. See Church of Scientology of Cal. v. United States, 506 U. S. 9, 13. And Pap's still has a concrete stake in the case's outcome because, to the extent it has an interest in resuming operations, it has an interest in preserving the judgment below. This Court's interest in preventing litigants from attempting to manipulate its jurisdiction to insulate a favorable decision from review further counsels against a finding of mootness. See, e.g., United States v. W. T. Grant Co., 345 U. S. 629, 632. Pp. 5­7. JUSTICE O'CONNOR, joined by THE CHIEF JUSTICE, JUSTICE KENNEDY, and JUSTICE BREYER, concluded in Parts III and IV that: 1. Government restrictions on public nudity such as Erie's ordi- nance should be evaluated under the framework set forth in United States v. O'Brien, 391 U. S. 367, for content-neutral restrictions on symbolic speech. Although being "in a state of nudity" is not an in- herently expressive condition, nude dancing of the type at issue here is expressive conduct that falls within the outer ambit of the First Amendment's protection. See, e.g., Barnes, supra, at 565­566 (plu- rality opinion). What level of scrutiny applies is determined by whether the ordinance is related to the suppression of expression. E.g., Texas v. Johnson, 491 U. S. 397, 403. If the governmental purpose in enacting the ordinance is unrelated to such suppression, the ordi- nance need only satisfy the "less stringent," intermediate O'Brien stan- Cite as: 529 U. S. ____ (2000) 3 Syllabus dard. E.g., Johnson, supra, at 403. If the governmental interest is re- lated to the expression's content, however, the ordinance falls outside O'Brien and must be justified under the more demanding, strict scru- tiny standard. Johnson, supra, at 403. An almost identical public nu- dity ban was held not to violate the First Amendment in Barnes, al- though no five Members of the Court agreed on a single rationale for that conclusion. The ordinance here, like the statute in Barnes, is on its face a general prohibition on public nudity. By its terms, it regu- lates conduct alone. It does not target nudity that contains an erotic message; rather, it bans all public nudity, regardless of whether that nudity is accompanied by expressive activity. Although Pap's con- tends that the ordinance is related to the suppression of expression because its preamble suggests that its actual purpose is to prohibit erotic dancing of the type performed at Kandyland, that is not how the Pennsylvania Supreme Court interpreted that language. Rather, the Pennsylvania Supreme Court construed the preamble to mean that one purpose of the ordinance was to combat negative secondary effects. That is, the ordinance is aimed at combating crime and other negative secondary effects caused by the presence of adult enter- tainment establishments like Kandyland and not at suppressing the erotic message conveyed by this type of nude dancing. See 391 U. S., at 382; see also Boos v. Barry, 485 U. S. 312, 321. The Pennsylvania Supreme Court's ultimate conclusion that the ordinance was never- theless content based relied on Justice White's position in dissent in Barnes that a ban of this type necessarily has the purpose of sup- pressing the erotic message of the dance. That view was rejected by a majority of the Court in Barnes, and is here rejected again. Pap's ar- gument that the ordinance is "aimed" at suppressing expression through a ban on nude dancing is really an argument that Erie also had an illicit motive in enacting the ordinance. However, this Court will not strike down an otherwise constitutional statute on the basis of an alleged illicit motive. O'Brien, supra, 391 U. S., at 382­383. Even if Erie's public nudity ban has some minimal effect on the erotic message by muting that portion of the expression that occurs when the last stitch is dropped, the dancers at Kandyland and other such establishments are free to perform wearing pasties and G-strings. Any effect on the overall expression is therefore de minimis. If States are to be able to regulate secondary effects, then such de minimis in- trusions on expression cannot be sufficient to render the ordinance content based. See, e.g., Clark v. Community for Creative Non-Violence, 468 U. S. 288, 299. Thus, Erie's ordinance is valid if it satisfies the O'Brien test. Pp. 7­15. 2. Erie's ordinance satisfies O'Brien's four-factor test. First, the ordinance is within Erie's constitutional power to enact because the 4 ERIE v. PAP'S A. M. Syllabus city's efforts to protect public health and safety are clearly within its police powers. Second, the ordinance furthers the important govern- ment interests of regulating conduct through a public nudity ban and of combating the harmful secondary effects associated with nude dancing. In terms of demonstrating that such secondary effects pose a threat, the city need not conduct new studies or produce evidence independent of that already generated by other cities, so long as the evidence relied on is reasonably believed to be relevant to the prob- lem addressed. Renton v. Playtime Theatres, Inc., 475 U. S. 41, 51­52. Erie could reasonably rely on the evidentiary foundation set forth in Renton and Young v. American Mini Theatres, Inc., 427 U. S. 50, to the effect that secondary effects are caused by the presence of even one adult entertainment establishment in a given neighborhood. See Ren- ton, supra, at 51­52. In fact, Erie expressly relied on Barnes and its discussion of secondary effects, including its reference to Renton and American Mini Theatres. The evidentiary standard described in Renton controls here, and Erie meets that standard. In any event, the ordi- nance's preamble also relies on the city council's express findings that "certain lewd, immoral activities carried on in public places for profit are highly detrimental to the public health, safety and welfare . . . ." The council members, familiar with commercial downtown Erie, are the individuals who would likely have had first-hand knowledge of what took place at and around nude dancing establishments there, and can make particularized, expert judgments about the resulting harmful sec- ondary effects. Cf., e.g., FCC v. National Citizens Comm. for Broadcast- ing, 436 U. S. 775. The fact that this sort of leeway is appropriate in this case, which involves a content-neutral restriction that regulates conduct, says nothing whatsoever about its appropriateness in a case involving actual regulation of First Amendment expression. Also, al- though requiring dancers to wear pasties and G-strings may not greatly reduce these secondary effects, O'Brien requires only that the regulation further the interest in combating such effects. The ordi- nance also satisfies O'Brien's third factor, that the government inter- est is unrelated to the suppression of free expression, as discussed supra. The fourth O'Brien factor- that the restriction is no greater than is essential to the furtherance of the government interest- is satisfied as well. The ordinance regulates conduct, and any inciden- tal impact on the expressive element of nude dancing is de minimis. The pasties and G-string requirement is a minimal restriction in fur- therance of the asserted government interests, and the restriction leaves ample capacity to convey the dancer's erotic message. See, e.g., Barnes, supra, at 572. Pp. 15­21. JUSTICE SCALIA, joined by JUSTICE THOMAS, agreed that the Pennsyl- vania Supreme Court's decision must be reversed, but disagreed with Cite as: 529 U. S. ____ (2000) 5 Syllabus the mode of analysis that should be applied. Erie self-consciously modeled its ordinance on the public nudity statute upheld in Barnes v. Glen Theatre, Inc., 501 U. S. 560, calculating (one would have sup- posed reasonably) that the Pennsylvania courts would consider them- selves bound by this Court's judgment on a question of federal consti- tutional law. That statute was constitutional not because it survived some lower level of First Amendment scrutiny, but because, as a gen- eral law regulating conduct and not specifically directed at expres- sion, it was not subject to First Amendment scrutiny at all. Id., at 572 (SCALIA, J., concurring in judgment). Erie's ordinance, too, by its terms prohibits not merely nude dancing, but the act- irrespective of whether it is engaged in for expressive purposes- of going nude in public. The facts that the preamble explains the ordinance's purpose, in part, as limiting a recent increase in nude live entertainment, that city councilmembers in supporting the ordinance commented to that effect, and that the ordinance includes in the definition of nudity the exposure of devices simulating that condition, neither make the law any less general in its reach nor demonstrate that what the munici- pal authorities really find objectionable is expression rather than public nakedness. That the city made no effort to enforce the ordi- nance against a production of Equus involving nudity that was being staged in Erie at the time the ordinance became effective does not render the ordinance discriminatory on its face. The assertion of the city's counsel in the trial court that the ordinance would not cover theatrical productions to the extent their expressive activity rose to a higher level of protected expression simply meant that the ordinance would not be enforceable against such productions if the Constitution forbade it. That limitation does not cause the ordinance to be not generally applicable, in the relevant sense of being targeted against expressive conduct. Moreover, even if it could be concluded that Erie specifically singled out the activity of nude dancing, the ordinance still would not violate the First Amendment unless it could be proved (as on this record it could not) that it was the communicative charac- ter of nude dancing that prompted the ban. See id., at 577. There is no need to identify "secondary effects" associated with nude dancing that Erie could properly seek to eliminate. The traditional power of government to foster good morals, and the acceptability of the tradi- tional judgment that nude public dancing itself is immoral, have not been repealed by the First Amendment. Pp. 6­10. O'CONNOR, J., announced the judgment of the Court and delivered the opinion of the Court with respect to Parts I and II, in which REHNQUIST, C. J., and KENNEDY, SOUTER, and BREYER, JJ., joined, and an opinion with respect to Parts III and IV, in which REHNQUIST, C. J., 6 ERIE v. PAP'S A. M. Syllabus and KENNEDY, and BREYER, JJ., joined. SCALIA, J., filed an opinion con- curring in the judgment, in which THOMAS, J., joined. SOUTER, J., filed an opinion concurring in part and dissenting in part. STEVENS, J., filed a dissenting opinion, in which GINSBURG, J., joined. Cite as: 529 U. S. ____ (2000) 1 Opinion of the Court NOTICE: This opinion is subject to formal revision before publication in the preliminary print of the United States Reports. Readers are requested to notify the Reporter of Decisions, Supreme Court of the United States, Wash- ington, D. C. 20543, of any typographical or other formal errors, in order that corrections may be made before the preliminary print goes to press. SUPREME COURT OF THE UNITED STATES _________________ No. 98­1161 _________________ CITY OF ERIE, ET AL., PETITIONERS v. PAP'S A. M. TDBA "KANDYLAND" ON WRIT OF CERTIORARI TO THE SUPREME COURT OF PENNSYLVANIA, WESTERN DISTRICT [March 29, 2000] JUSTICE O'CONNOR announced the judgment of the Court and delivered the opinion of the Court with respect to Parts I and II, and an opinion with respect to Parts III and IV, in which THE CHIEF JUSTICE, JUSTICE KENNEDY, and JUSTICE BREYER join. The city of Erie, Pennsylvania, enacted an ordinance banning public nudity. Respondent Pap's A. M. (hereinaf- ter Pap's), which operated a nude dancing establishment in Erie, challenged the constitutionality of the ordinance and sought a permanent injunction against its enforce- ment. The Pennsylvania Supreme Court, although noting that this Court in Barnes v. Glen Theatre, Inc., 501 U. S. 560 (1991), had upheld an Indiana ordinance that was "strikingly similar" to Erie's, found that the public nudity sections of the ordinance violated respondent's right to freedom of expression under the United States Constitu- tion. 553 Pa. 348, 356, 719 A. 2d 273, 277 (1998). This case raises the question whether the Pennsylvania Su- preme Court properly evaluated the ordinance's constitu- tionality under the First Amendment. We hold that Erie's ordinance is a content-neutral regulation that satisfies the four-part test of United States v. O'Brien, 391 U. S. 367 2 ERIE v. PAP'S A. M. Opinion of the Court (1968). Accordingly, we reverse the decision of the Penn- sylvania Supreme Court and remand for the consideration of any remaining issues. I On September 28, 1994, the city council for the city of Erie, Pennsylvania, enacted Ordinance 75­1994, a public indecency ordinance that makes it a summary offense to knowingly or intentionally appear in public in a "state of nudity."* Respondent Pap's, a Pennsylvania corporation, operated an establishment in Erie known as "Kandyland" - - - - - - * Ordinance 75­1994, codified as Article 711 of the Codified Ordi- nances of the city of Erie, provides in relevant part: "1. A person who knowingly or intentionally, in a public place: "a. engages in sexual intercourse "b. engages in deviate sexual intercourse as defined by the Pennsyl- vania Crimes Code "c. appears in a state of nudity, or "d. fondles the genitals of himself, herself or another person commits Public Indecency, a Summary Offense. "2. "Nudity" means the showing of the human male or female genital [sic], pubic hair or buttocks with less than a fully opaque covering; the showing of the female breast with less than a fully opaque covering of any part of the nipple; the exposure of any device, costume, or covering which gives the appearance of or simulates the genitals, pubic hair, natal cleft, perineum anal region or pubic hair region; or the exposure of any device worn as a cover over the nipples and/or areola of the female breast, which device simulates and gives the realistic appear- ance of nipples and/or areola. "3. "Public Place" includes all outdoor places owned by or open to the general public, and all buildings and enclosed places owned by or open to the general public, including such places of entertainment, taverns, restaurants, clubs, theaters, dance halls, banquet halls, party rooms or halls limited to specific members, restricted to adults or to patrons invited to attend, whether or not an admission charge is levied. "4. The prohibition set forth in subsection 1(c) shall not apply to: "a. Any child under ten (10) years of age; or "b. Any individual exposing a breast in the process of breastfeeding an infant under two (2) years of age." Cite as: 529 U. S. ____ (2000) 3 Opinion of the Court that featured totally nude erotic dancing performed by women. To comply with the ordinance, these dancers must wear, at a minimum, "pasties" and a "G-string." On October 14, 1994, two days after the ordinance went into effect, Pap's filed a complaint against the city of Erie, the mayor of the city, and members of the city council, seeking declaratory relief and a permanent injunction against the enforcement of the ordinance. The Court of Common Pleas of Erie County granted the permanent injunction and struck down the ordinance as unconstitutional. Civ. No. 60059­1994 (Jan. 18, 1995), Pet. for Cert. 40a. On cross appeals, the Commonwealth Court reversed the trial court's order. 674 A. 2d 338 (1996). The Pennsylvania Supreme Court granted review and reversed, concluding that the public nudity provisions of the ordinance violated respondent's rights to freedom of expression as protected by the First and Fourteenth Amendments. 553 Pa. 348, 719 A. 2d 273 (1998). The Pennsylvania court first inquired whether nude dancing constitutes expressive conduct that is within the protec- tion of the First Amendment. The court noted that the act of being nude, in and of itself, is not entitled to First Amendment protection because it conveys no message. Id., at 354, 719 A. 2d, at 276. Nude dancing, however, is expressive conduct that is entitled to some quantum of protection under the First Amendment, a view that the Pennsylvania Supreme Court noted was endorsed by eight Members of this Court in Barnes. 553 Pa., at 354, 719 A. 2d, at 276. The Pennsylvania court next inquired whether the government interest in enacting the ordinance was con- tent neutral, explaining that regulations that are unre- lated to the suppression of expression are not subject to strict scrutiny but to the less stringent standard of United States v. O'Brien, supra, at 377. To answer the question 4 ERIE v. PAP'S A. M. Opinion of the Court whether the ordinance is content based, the court turned to our decision in Barnes. 553 Pa., at 355­356, 719 A. 2d, at 277. Although the Pennsylvania court noted that the Indiana statute at issue in Barnes "is strikingly similar to the Ordinance we are examining," it concluded that "[u]nfortunately for our purposes, the Barnes Court splin- tered and produced four separate, non-harmonious opin- ions." 553 Pa., at 356, 719 A. 2d, at 277. After canvassing these separate opinions, the Pennsylvania court concluded that, although it is permissible to find precedential effect in a fragmented decision, to do so a majority of the Court must have been in agreement on the concept that is deemed to be the holding. See Marks v. United States, 430 U. S. 188 (1977). The Pennsylvania court noted that "aside from the agreement by a majority of the Barnes Court that nude dancing is entitled to some First Amendment protec- tion, we can find no point on which a majority of the Barnes Court agreed." 553 Pa., at 358, 719 A. 2d, at 278. Accordingly, the court concluded that "no clear precedent arises out of Barnes on the issue of whether the [Erie] ordinance . . . passes muster under the First Amendment." Ibid. Having determined that there was no United States Supreme Court precedent on point, the Pennsylvania court conducted an independent examination of the ordi- nance to ascertain whether it was related to the suppres- sion of expression. The court concluded that although one of the purposes of the ordinance was to combat negative secondary effects, "[i]nextricably bound up with this stated purpose is an unmentioned purpose . . . to impact nega- tively on the erotic message of the dance." Id., at 359, 719 A. 2d, at 279. As such, the court determined the ordinance was content based and subject to strict scrutiny. The ordinance failed the narrow tailoring requirement of strict scrutiny because the court found that imposing criminal and civil sanctions on those who commit sex crimes would Cite as: 529 U. S. ____ (2000) 5 Opinion of the Court be a far narrower means of combating secondary effects than the requirement that dancers wear pasties and G- strings. Id., at 361­362, 719 A. 2d, at 280. Concluding that the ordinance unconstitutionally bur- dened respondent's expressive conduct, the Pennsylvania court then determined that, under Pennsylvania law, the public nudity provisions of the ordinance could be severed rather than striking the ordinance in its entirety. Ac- cordingly, the court severed §§1(c) and 2 from the ordi- nance and reversed the order of the Commonwealth Court. Id., at 363­364, 719 A. 2d, at 281. Because the court determined that the public nudity provisions of the ordi- nance violated Pap's right to freedom of expression under the United States Constitution, it did not address the constitutionality of the ordinance under the Pennsylvania Constitution or the claim that the ordinance is unconstitu- tionally overbroad. Ibid. In a separate concurrence, two justices of the Pennsyl- vania court noted that, because this Court upheld a virtu- ally identical statute in Barnes, the ordinance should have been upheld under the United States Constitution. 553 Pa., at 364, 719 A. 2d, at 281. They reached the same result as the majority, however, because they would have held that the public nudity sections of the ordinance vio- late the Pennsylvania Constitution. Id., at 370, 719 A. 2d, at 284. The city of Erie petitioned for a writ of certiorari, which we granted. 526 U. S. 1111 (1999). Shortly thereafter, Pap's filed a motion to dismiss the case as moot, noting that Kandyland was no longer operating as a nude danc- ing club, and Pap's was not operating a nude dancing club at any other location. Respondent's Motion to Dismiss as Moot 1. We denied the motion. 527 U. S. 1034 (1999). II As a preliminary matter, we must address the justi- 6 ERIE v. PAP'S A. M. Opinion of the Court ciability question. " `[A] case is moot when the issues presented are no longer `live' or the parties lack a legally cognizable interest in the outcome.' " County of Los Ange- les v. Davis, 440 U. S. 625, 631 (1979) (quoting Powell v. McCormack, 395 U. S. 486, 496 (1969)). The underlying concern is that, when the challenged conduct ceases such that " `there is no reasonable expectation that the wrong will be repeated,' " United States v. W. T. Grant Co., 345 U. S. 629, 633 (1953), then it becomes impossible for the court to grant " `any effectual relief whatever' to [the] prevailing party," Church of Scientology of Cal. v. United States, 506 U. S. 9, 12 (1992) (quoting Mills v. Green, 159 U. S. 651, 653 (1895)). In that case, any opinion as to the legality of the challenged action would be advisory. Here, Pap's submitted an affidavit stating that it had "ceased to operate a nude dancing establishment in Erie." Status Report Re Potential Issue of Mootness 1 (Sept. 8, 1999). Pap's asserts that the case is therefore moot be- cause "[t]he outcome of this case will have no effect upon Respondent." Respondent's Motion to Dismiss as Moot 1. Simply closing Kandyland is not sufficient to render this case moot, however. Pap's is still incorporated under Pennsylvania law, and it could again decide to operate a nude dancing establishment in Erie. See Petitioner's Brief in Opposition to Motion to Dismiss 3. JUSTICE SCALIA differs with our assessment as to the likelihood that Pap's may resume its nude dancing operation. Several Members of this Court can attest, however, that the "advanced age" of Pap's owner (72) does not make it "absolutely clear" that a life of quiet retirement is his only reasonable expecta- tion. Cf. Friends of Earth, Inc. v. Laidlaw Environmental Services (TOC), Inc., 528 U. S. ___ (2000). Moreover, our appraisal of Pap's affidavit is influenced by Pap's failure, despite its obligation to the Court, to mention a word about the potential mootness issue in its brief in opposi- tion to the petition for writ of certiorari, which was filed in Cite as: 529 U. S. ____ (2000) 7 Opinion of O'CONNOR, J. April 1999, even though, as JUSTICE SCALIA points out, Kandyland was closed and that property sold in 1998. See Board of License Comm'rs of Tiverton v. Pastore, 469 U. S. 238, 240 (1985) (per curiam). Pap's only raised the issue after this Court granted certiorari. In any event, this is not a run of the mill voluntary cessation case. Here it is the plaintiff who, having pre- vailed below, now seeks to have the case declared moot. And it is the city of Erie that seeks to invoke the federal judicial power to obtain this Court's review of the Penn- sylvania Supreme Court decision. Cf. ASARCO Inc. v. Kadish, 490 U. S. 605, 617­618 (1989). The city has an ongoing injury because it is barred from enforcing the public nudity provisions of its ordinance. If the challenged ordinance is found constitutional, then Erie can enforce it, and the availability of such relief is sufficient to prevent the case from being moot. See Church of Scientology of Cal. v. United States, supra, at 13. And Pap's still has a concrete stake in the outcome of this case because, to the extent Pap's has an interest in resuming operations, it has an interest in preserving the judgment of the Pennsylva- nia Supreme Court. Our interest in preventing litigants from attempting to manipulate the Court's jurisdiction to insulate a favorable decision from review further counsels against a finding of mootness here. See United States v. W. T. Grant Co., supra, at 632; cf. Arizonans for Official English v. Arizona, 520 U. S. 43, 74 (1997). Although the issue is close, we conclude that the case is not moot, and we turn to the merits. III Being "in a state of nudity" is not an inherently expres- sive condition. As we explained in Barnes, however, nude dancing of the type at issue here is expressive conduct, although we think that it falls only within the outer ambit of the First Amendment's protection. See Barnes v. Glen 8 ERIE v. PAP'S A. M. Opinion of O'CONNOR, J. Theatre, Inc., 501 U. S., at 565­566 (plurality opinion); Schad v. Mount Ephraim, 452 U. S. 61, 66 (1981). To determine what level of scrutiny applies to the ordi- nance at issue here, we must decide "whether the State's regulation is related to the suppression of expression." Texas v. Johnson, 491 U. S. 397, 403 (1989); see also United States v. O'Brien, 391 U. S., at 377. If the governmental purpose in enacting the regulation is unrelated to the sup- pression of expression, then the regulation need only satisfy the "less stringent" standard from O'Brien for evaluating restrictions on symbolic speech. Texas v. Johnson, supra, at 403; United States v. O'Brien, supra, at 377. If the govern- ment interest is related to the content of the expression, however, then the regulation falls outside the scope of the O'Brien test and must be justified under a more demanding standard. Texas v. Johnson, supra, at 403. In Barnes, we analyzed an almost identical statute, holding that Indiana's public nudity ban did not violate the First Amendment, although no five Members of the Court agreed on a single rationale for that conclusion. We now clarify that government restrictions on public nudity such as the ordinance at issue here should be evaluated under the framework set forth in O'Brien for content- neutral restrictions on symbolic speech. The city of Erie argues that the ordinance is a content- neutral restriction that is reviewable under O'Brien be- cause the ordinance bans conduct, not speech; specifically, public nudity. Respondent counters that the ordinance targets nude dancing and, as such, is aimed specifically at suppressing expression, making the ordinance a content- based restriction that must be subjected to strict scrutiny. The ordinance here, like the statute in Barnes, is on its face a general prohibition on public nudity. 553 Pa., at 354, 719 A. 2d, at 277. By its terms, the ordinance regu- lates conduct alone. It does not target nudity that con- tains an erotic message; rather, it bans all public nudity, Cite as: 529 U. S. ____ (2000) 9 Opinion of O'CONNOR, J. regardless of whether that nudity is accompanied by expressive activity. And like the statute in Barnes, the Erie ordinance replaces and updates provisions of an "Indecency and Immorality" ordinance that has been on the books since 1866, predating the prevalence of nude dancing establishments such as Kandyland. Pet. for Cert. 7a; see Barnes v. Glen Theatre, Inc., supra, at 568. Respondent and JUSTICE STEVENS contend nonetheless that the ordinance is related to the suppression of expres- sion because language in the ordinance's preamble sug- gests that its actual purpose is to prohibit erotic dancing of the type performed at Kandyland. Post, at 1 (dissenting opinion). That is not how the Pennsylvania Supreme Court interpreted that language, however. In the pream- ble to the ordinance, the city council stated that it was adopting the regulation " `for the purpose of limiting a recent increase in nude live entertainment within the City, which activity ad- versely impacts and threatens to impact on the public health, safety and welfare by providing an atmos- phere conducive to violence, sexual harassment, pub- lic intoxication, prostitution, the spread of sexually transmitted diseases and other deleterious effects.' " 553 Pa., at 359, 719 A. 2d, at 279. The Pennsylvania Supreme Court construed this language to mean that one purpose of the ordinance was "to combat negative secondary effects." Ibid. As JUSTICE SOUTER noted in Barnes, "on its face, the governmental interest in combating prostitution and other criminal activity is not at all inherently related to expres- sion." 501 U. S., at 585 (opinion concurring in judgment). In that sense, this case is similar to O'Brien. O'Brien burned his draft registration card as a public statement of his antiwar views, and he was convicted under a statute making it a crime to knowingly mutilate or destroy such a 10 ERIE v. PAP'S A. M. Opinion of O'CONNOR, J. card. This Court rejected his claim that the statute vio- lated his First Amendment rights, reasoning that the law punished him for the "noncommunicative impact of his conduct, and for nothing else." 391 U. S., at 382. In other words, the Government regulation prohibiting the destruc- tion of draft cards was aimed at maintaining the integrity of the Selective Service System and not at suppressing the message of draft resistance that O'Brien sought to convey by burning his draft card. So too here, the ordinance prohibiting public nudity is aimed at combating crime and other negative secondary effects caused by the presence of adult entertainment establishments like Kandyland and not at suppressing the erotic message conveyed by this type of nude dancing. Put another way, the ordinance does not attempt to regulate the primary effects of the expression, i.e., the effect on the audience of watching nude erotic dancing, but rather the secondary effects, such as the impacts on public health, safety, and welfare, which we have previously recognized are "caused by the presence of even one such" establishment. Renton v. Playtime Theatres, Inc., 475 U. S. 41, 47­48, 50 (1986); see also Boos v. Barry, 485 U. S. 312, 321 (1988). Although the Pennsylvania Supreme Court acknowl- edged that one goal of the ordinance was to combat the negative secondary effects associated with nude dancing establishments, the court concluded that the ordinance was nevertheless content based, relying on Justice White's position in dissent in Barnes for the proposition that a ban of this type necessarily has the purpose of suppressing the erotic message of the dance. Because the Pennsylvania court agreed with Justice White's approach, it concluded that the ordinance must have another, "unmentioned" purpose related to the suppression of expression. 553 Pa., at 359, 719 A. 2d, at 279. That is, the Pennsylvania court adopted the dissent's view in Barnes that " `[s]ince the State permits the dancers to perform if they wear pasties Cite as: 529 U. S. ____ (2000) 11 Opinion of O'CONNOR, J. and G-strings but forbids nude dancing, it is precisely because of the distinctive, expressive content of the nude dancing performances at issue in this case that the State seeks to apply the statutory prohibition." 553 Pa., at 359, 719 A. 2d, at 279 (quoting Barnes, supra, at 592 (White, J., dissenting)). A majority of the Court rejected that view in Barnes, and we do so again here. Respondent's argument that the ordinance is "aimed" at suppressing expression through a ban on nude dancing- an argument that respondent supports by pointing to statements by the city attorney that the public nudity ban was not intended to apply to "legitimate" theater produc- tions- is really an argument that the city council also had an illicit motive in enacting the ordinance. As we have said before, however, this Court will not strike down an otherwise constitutional statute on the basis of an alleged illicit motive. O'Brien, 391 U. S., at 382­383; Renton v. Playtime Theatres, Inc., supra, at 47­48 (that the "pre- dominate" purpose of the statute was to control secondary effects was "more than adequate to establish" that the city's interest was unrelated to the suppression of expres- sion). In light of the Pennsylvania court's determination that one purpose of the ordinance is to combat harmful secondary effects, the ban on public nudity here is no different from the ban on burning draft registration cards in O'Brien, where the Government sought to prevent the means of the expression and not the expression of antiwar sentiment itself. JUSTICE STEVENS argues that the ordinance enacts a complete ban on expression. We respectfully disagree with that characterization. The public nudity ban cer- tainly has the effect of limiting one particular means of expressing the kind of erotic message being disseminated at Kandyland. But simply to define what is being banned as the "message" is to assume the conclusion. We did not analyze the regulation in O'Brien as having enacted a 12 ERIE v. PAP'S A. M. Opinion of O'CONNOR, J. total ban on expression. Instead, the Court recognized that the regulation against destroying one's draft card was justified by the Government's interest in preventing the harmful "secondary effects" of that conduct (disruption to the Selective Service System), even though that regulation may have some incidental effect on the expressive element of the conduct. Because this justification was unrelated to the suppression of O'Brien's antiwar message, the regula- tion was content neutral. Although there may be cases in which banning the means of expression so interferes with the message that it essentially bans the message, that is not the case here. Even if we had not already rejected the view that a ban on public nudity is necessarily related to the suppres- sion of the erotic message of nude dancing, we would do so now because the premise of such a view is flawed. The State's interest in preventing harmful secondary effects is not related to the suppression of expression. In trying to control the secondary effects of nude dancing, the ordi- nance seeks to deter crime and the other deleterious ef- fects caused by the presence of such an establishment in the neighborhood. See Renton, supra, at 50­51. In Clark v. Community for Creative Non-Violence, 468 U. S. 288 (1984), we held that a National Park Service regulation prohibiting camping in certain parks did not violate the First Amendment when applied to prohibit demonstrators from sleeping in Lafayette Park and the Mall in Washing- ton, D. C., in connection with a demonstration intended to call attention to the plight of the homeless. Assuming, arguendo, that sleeping can be expressive conduct, the Court concluded that the Government interest in conserving park property was unrelated to the demonstrators' message about homelessness. Id., at 299. So, while the demonstra- tors were allowed to erect "symbolic tent cities," they were not allowed to sleep overnight in those tents. Even though the regulation may have directly limited the expressive Cite as: 529 U. S. ____ (2000) 13 Opinion of O'CONNOR, J. element involved in actually sleeping in the park, the regu- lation was nonetheless content neutral. Similarly, even if Erie's public nudity ban has some minimal effect on the erotic message by muting that por- tion of the expression that occurs when the last stitch is dropped, the dancers at Kandyland and other such estab- lishments are free to perform wearing pasties and G- strings. Any effect on the overall expression is de mini- mis. And as JUSTICE STEVENS eloquently stated for the plurality in Young v. American Mini Theatres, Inc., 427 U. S. 50, 70 (1976), "even though we recognize that the First Amendment will not tolerate the total suppression of erotic materials that have some arguably artistic value, it is mani- fest that society's interest in protecting this type of expres- sion is of a wholly different, and lesser, magnitude than the interest in untrammeled political debate," and "few of us would march our sons or daughters off to war to preserve the citizen's right to see" specified anatomical areas exhib- ited at establishments like Kandyland. If States are to be able to regulate secondary effects, then de minimis intru- sions on expression such as those at issue here cannot be sufficient to render the ordinance content based. See Clark v. Community for Creative Non-Violence, supra, at 299; Ward v. Rock Against Racism, 491 U. S. 781, 791 (1989) (even if regulation has an incidental effect on some speakers or messages but not others, the regulation is content neutral if it can be justified without reference to the content of the expression). This case is, in fact, similar to O'Brien, Community for Creative Non-Violence, and Ward. The justification for the government regulation in each case prevents harmful "sec- ondary" effects that are unrelated to the suppression of expression. See, e.g., Ward v. Rock Against Racism, supra, at 791­792 (noting that "[t]he principal justification for the sound-amplification guideline is the city's desire to control noise levels at bandshell events, in order to retain the char- 14 ERIE v. PAP'S A. M. Opinion of O'CONNOR, J. acter of [the adjacent] Sheep Meadow and its more sedate activities," and citing Renton for the proposition that "[a] regulation that serves purposes unrelated to the content of expression is deemed neutral, even if it has an incidental effect on some speakers or messages but not others"). While the doctrinal theories behind "incidental burdens" and "secondary effects" are, of course, not identical, there is nothing objectionable about a city passing a general ordi- nance to ban public nudity (even though such a ban may place incidental burdens on some protected speech) and at the same time recognizing that one specific occurrence of public nudity- nude erotic dancing- is particularly prob- lematic because it produces harmful secondary effects. JUSTICE STEVENS claims that today we "[f]or the first time" extend Renton's secondary effects doctrine to justify restrictions other than the location of a commercial enter- prise. Post, at 1. Our reliance on Renton to justify other restrictions is not new, however. In Ward, the Court relied on Renton to evaluate restrictions on sound amplification at an outdoor bandshell, rejecting the dissent's contention that Renton was inapplicable. See Ward v. Rock Against Racism, supra, at 804, n. 1 (Marshall, J., dissenting) ("Today, for the first time, a majority of the Court applies Renton analysis to a category of speech far afield from that decision's original limited focus"). Moreover, Erie's ordinance does not effect a "total ban" on protected expression. Post, at 3. In Renton, the regulation explicitly treated "adult" movie theaters differently from other theaters, and defined "adult" theaters solely by reference to the content of their movies. 475 U. S., at 44. We nonetheless treated the zoning regula- tion as content neutral because the ordinance was aimed at the secondary effects of adult theaters, a justification unre- lated to the content of the adult movies themselves. Id., at 48. Here, Erie's ordinance is on its face a content-neutral restriction on conduct. Even if the city thought that nude dancing at clubs like Kandyland constituted a particularly Cite as: 529 U. S. ____ (2000) 15 Opinion of O'CONNOR, J. problematic instance of public nudity, the regulation is still properly evaluated as a content-neutral restriction because the interest in combating the secondary effects associated with those clubs is unrelated to the suppression of the erotic message conveyed by nude dancing. We conclude that Erie's asserted interest in combating the negative secondary effects associated with adult enter- tainment establishments like Kandyland is unrelated to the suppression of the erotic message conveyed by nude dancing. The ordinance prohibiting public nudity is there- fore valid if it satisfies the four-factor test from O'Brien for evaluating restrictions on symbolic speech. IV Applying that standard here, we conclude that Erie's ordinance is justified under O'Brien. The first factor of the O'Brien test is whether the government regulation is within the constitutional power of the government to enact. Here, Erie's efforts to protect public health and safety are clearly within the city's police powers. The second factor is whether the regulation furthers an impor- tant or substantial government interest. The asserted interests of regulating conduct through a public nudity ban and of combating the harmful secondary effects asso- ciated with nude dancing are undeniably important. And in terms of demonstrating that such secondary effects pose a threat, the city need not "conduct new studies or produce evidence independent of that already generated by other cities" to demonstrate the problem of secondary effects, "so long as whatever evidence the city relies upon is reasona- bly believed to be relevant to the problem that the city addresses." Renton v. Playtime Theatres, Inc., supra, at 51­ 52. Because the nude dancing at Kandyland is of the same character as the adult entertainment at issue in Renton, Young v. American Mini Theatres, Inc., 427 U. S. 50 (1976), and California v. LaRue, 409 U. S. 109 (1972), it was rea- 16 ERIE v. PAP'S A. M. Opinion of O'CONNOR, J. sonable for Erie to conclude that such nude dancing was likely to produce the same secondary effects. And Erie could reasonably rely on the evidentiary foundation set forth in Renton and American Mini Theatres to the effect that sec- ondary effects are caused by the presence of even one adult entertainment establishment in a given neighborhood. See Renton v. Playtime Theatres, Inc., supra, at 51­52 (indicat- ing that reliance on a judicial opinion that describes the evidentiary basis is sufficient). In fact, Erie expressly relied on Barnes and its discussion of secondary effects, including its reference to Renton and American Mini Theatres. Even in cases addressing regulations that strike closer to the core of First Amendment values, we have accepted a state or local g