
930 F.Supp. 873 (1996)
AMERICAN SOCIETY OF COMPOSERS, AUTHORS, AND PUBLISHERS, by its President and Chairman Marilyn BERGMAN, Plaintiff,
and
Broadcast Music, Inc., Plaintiff-intervenor,
v.
George E. PATAKI, in his Official Capacity as Governor of the State of New York, et al., Defendants.
No. 95 Civ. 9895 (BSJ).
United States District Court, S.D. New York.
March 20, 1996.
*874 *875 Richard H. Reimer, American Society of Composers, Authors and Publishers, David S. Klafter, and Fred Koenigsberg, White & Case, New York City, for ASCAP.
Michael E. Salzman, Hughes Hubbard & Reed, New York City, Marvin L. Berenson, New York City, Gary F. Roth, Broadcast Music, Inc., New York City, for Broadcast Music, Inc.
Judith L. Kramer, New York City, for defendants.

Opinion and Order
JONES, District Judge:
Plaintiff, American Society of Composers, Authors and Publishers ("ASCAP") and plaintiff-intervenor, Broadcast Music, Inc. ("BMI") (hereinafter referred to collectively as "plaintiffs"), seek an injunction enjoining the enforcement of sections 31.04.4(c) and 31.04.5 of the New York Arts and Cultural Affairs Law (hereinafter referred to as the "provisions" or the "New York provisions") enacted by the State of New York on August 8, 1995 with an effective date of January 1, 1996, on the grounds that they are preempted by the federal Copyright Act of 1976, 17 U.S.C. § 101, et seq. (1994), pursuant to the Supremacy Clause of the United States Constitution, Article VI, clause 2.
A temporary restraining order was issued by the Court on December 22, 1995, which enjoined defendants from enforcing the provisions with defendants' consent. After consideration of the briefs, supporting affidavits, and oral argument heard on March 8, 1996, this Court hereby grants plaintiffs' motion for a preliminary injunction.

Findings of Fact
The following facts are essentially undisputed for the purposes of this motion. ASCAP and BMI are performing rights societies whose members are the creators and owners of copyrighted musical compositions. Performing rights societies such as ASCAP and BMI were created to enable writers and owners of musical works to exercise their rights in and to reap the financial benefits of their copyrights. Both BMI and ASCAP "operate primarily through blanket licenses, which give the licensees the right to perform any and all of the compositions owned by the members or affiliates as often as the licensees desire for a stated term." Broadcast Music, Inc. v. CBS, Inc., 441 U.S. 1, 5, 99 S.Ct. 1551, 1555, 60 L.Ed.2d 1 (1979). The organizations collect fees for the licenses and distribute the fees as royalties to their members after deducting operating expenses. The royalties that ASCAP distributes to its members form the largest single source of income to songwriters and music publishers.
Plaintiffs are authorized by their members to detect and police infringements of their copyrights. Performing rights societies such as ASCAP and BMI are necessary to the enforcement of the copyright law because "as a practical matter it [is] impossible for many individual copyright owners to negotiate with and license the users and to detect unauthorized uses." Id. at 4-5, 99 S.Ct. at 1555. In their effort to enforce the rights of copyright owners, plaintiffs use a series of written and personal communications with the proprietors of establishments, typically bars or restaurants, asking them to enter into a licensing agreement.[1] If the proprietor ignores *876 the first communication, usually a letter, it is followed up with additional letters and telephone calls.[2] These communications are aimed at negotiating a license for the performance of copyrighted musical works at the establishment.
If, after these communications, a proprietor continues to refuse to negotiate a license for the public performance of copyrighted work, plaintiffs begin what has been termed "a surreptitious (but entirely legal) undercover investigation." Milene Music, Inc. v. Gotauco, 551 F.Supp. 1288 (D.R.I.1982).[3] In order to detect whether one of these proprietors is publicly performing copyrighted music without a license, an undercover investigator enters the proprietor's establishment and takes notes as to whether copyrighted music in the plaintiff's repertory is being performed. From those notes, the investigator prepares a report which is sent to the office and reviewed to confirm that the songs that were being played without a license are listed in the plaintiff's repertory. Investigators sometimes make more than one "undercover" visit[4] in order to continue the investigation to establish a pattern of infringement for use in negotiations or, if negotiations fail, in federal litigation.
Prior to the filing of a complaint alleging copyright infringement, plaintiffs send a final letter notifying the proprietor of the results of the investigation and identifying the songs that were performed without a license. Plaintiffs include with this letter a copy of the complaint to be filed in the infringement suit.
As noted above, it is undisputed that plaintiffs follow these procedures in their efforts to negotiate licenses and investigate copyright infringement. In 1995, however, the state enacted an amendment to the New York Arts and Cultural Affairs Law which imposes additional procedural requirements on plaintiffs. Sections 31.04.4(c) and 31.04.5 provide:
4. No performing rights society or any agent or employee thereof shall:
(c) fail to provide written notice to a proprietor or his or her employees within seventy-two hours after entering the proprietor's business for the purpose of investigating the possible performance, broadcasting or transmission of nondramatic musical works, and disclosing that such agent or employee was investigating on behalf of such performing rights society and disclosing:
(1) the name of the performing rights society
(2) the date on which such agent or employee conducted the investigation; and
(3) the copyrighted works in such performing rights society's repertory performed at the business during the investigation.
5. Any person who suffers a violation of this section may bring an action to recover actual damages and reasonable attorney's fees and seek an injunction or other remedy available at law or equity....
N.Y. Arts and Cult.Affs.Law §§ 31.04.4(c) and 31.04.5.[5]
*877 The parties dispute the effect that these provisions will have on plaintiffs' ability to investigate copyright infringement. This Court finds that the 72-hour notice requirement will alert the proprietor to the investigation and therefore frustrate the purpose of subsequent visits. This Court agrees that "[i]t is only common sense that unannounced investigations to collect evidence are ruined when the subject of the investigation is tipped off." BMI's Reply Brief at 9. If plaintiffs give notice within 72 hours after the initial visit, a proprietor will have incentive to avoid publicly performing copyrighted musical works when the same investigator, or anyone else, is seen taking notes on the premises. This result undermines efforts at ongoing investigations of infringement and creates a deterrent to the enforcement of copyright.
An additional factual dispute is whether it would be possible for plaintiffs to comply with the provisions in light of their undisputed investigative procedures.[6] Plaintiff contends by way of example that if
an investigation occurred at 10 p.m. on Thursday, the investigators would have to write up their detailed reports and submit them to ASCAP, which would then have to analyze them and prepare the requisite notice to the proprietor, which would then have to be delivered to the proprietor, all by 10 p.m. Sunday night.
Memorandum of Points and Authorities in Support of ASCAP's Motion for a Preliminary Injunction ("ASCAP's Brief") at 20. Defendants claim, on the other hand, that plaintiffs have acknowledged that confirming that a song is listed in the their repertory is usually relatively easy.[7] Def.'s Brief at 8.
Plaintiff's reply that "the critical time period is the time it takes to determine whether specific songs in the ASCAP repertory have been performed" and that this "may take weeks." ASCAP's and BMI's Reply Brief at 13 n. 6. After consideration of the briefs and supporting affidavits, this Court finds that compliance by plaintiffs with the statute would be difficult, and frequently impossible, inexorably leading to violations of the 72-hours provision.

Conclusions of Law

Standard for Preliminary Injunction
To obtain a preliminary injunction, a plaintiff must demonstrate (1) irreparable injury should the injunction not be granted and (2) either (a) a likelihood of success on the merits or (b) sufficiently serious questions going to the merits and that the balance of hardships tips decidedly toward the plaintiff. NAACP v. Town of East Haven, 70 F.3d 219, 223 (2d Cir.1995); see College Entrance Examination Board v. Pataki, 889 F.Supp. 554, 562 (N.D.N.Y.1995) (quoting Fisher-Price, Inc. v. Well-Made Toy Mfg. Corp., 25 F.3d 119, 122 (2d Cir.1994)). Where, however, the moving party challenges governmental action taken in the public interest pursuant to a statutory or regulatory *878 scheme, the moving party "cannot resort to the `fair ground for litigation' standard [the `serious questions' standard], but is required to demonstrate irreparable harm and a likelihood of success on the merits." Jolly v. Coughlin, 76 F.3d 468, 473 (2d Cir.1996) (citing Able v. United States, 44 F.3d 128, 131 (2d Cir.1995)); see also NAACP v. Town of East Haven, 70 F.3d at 223 (citing Plaza Health Lab., Inc. v. Perales, 878 F.2d 577, 580 (2d Cir.1989)).
Defendants argue that this Court should apply an even higher standard because this is a mandatory injunction. As the Court of Appeals recently stated,
The moving party must make a clear or substantial showing of a likelihood of success on the merits where (1) the injunction sought will alter, rather than maintain, the status quo,  i.e., is properly characterized as a mandatory rather than prohibitory injunction; or (2) the injunction sought would provide the movant with substantially all the relief sought, and that relief cannot be undone even if the defendant prevails at a trial on the merits.
Jolly, 76 F.3d at 473 (citing Tom Doherty Assocs. v. Saban Entertainment, Inc., 60 F.3d 27, 33-34 (2d Cir.1995) (quotations omitted).
This Court finds that the higher standard does not apply to plaintiffs' motion for preliminary injunction in the instant case. The injunction sought by plaintiffs is not mandatory; rather, it is prohibitory. It would prevent defendants from enforcing the new provisions, rather than mandate that defendants affirmatively take action. It also maintains the status quo because it will preserve federal copyright enforcement procedures as they existed before the enactment of the New York law and it would continue the temporary restraining order which initially prevented the provisions from going into effect. Nor does this higher standard apply because the relief sought by the plaintiff, preventing enforcement of the provisions, could be undone if defendants ultimately prevail on the merits.
Accordingly, plaintiffs need show only that they will suffer irreparable injury and that there is a likelihood of success on the merits of their preemption claim in order to prevail on their motion for a preliminary injunction.

1. Likelihood of Success on the Merits
Plaintiffs argue that these provisions are preempted by the federal copyright statute pursuant to the Supremacy Clause of the United State Constitution. In Association of American Medical Colleges v. Cuomo, 928 F.2d 519, 522 (2d Cir.), cert. denied, 502 U.S. 862, 112 S.Ct. 184, 116 L.Ed.2d 146 (1991) ("AAMC v. Cuomo"), the Court of Appeals articulated three possible grounds for a finding that a state law has been preempted by a federal law: (1) express preemption, (2) implied preemption based upon a comprehensive federal law, and (3) "conflict preemption" where state law and federal law conflict. Plaintiffs claim that the New York provisions are preempted on all three grounds. Because this Court concludes that plaintiffs have shown a likelihood of success on the grounds of "conflict preemption," this Court need not reach the other possible grounds of preemption.
Conflict preemption occurs either where compliance with both federal and state regulations is a "physical impossibility," or where state law stands as an "obstacle to the accomplishment and execution of the full purposes and objectives of Congress." AAMC v. Cuomo, 928 F.2d at 522 (quotations and citations omitted); see Hines v. Davidowitz, 312 U.S. 52, 67, 61 S.Ct. 399, 404, 85 L.Ed. 581 (1941). Because the provisions impose a notice requirement on copyright enforcers, and make non-compliance with the requirement actionable, the provisions hinder the realization of the federal copyright scheme.
Plaintiff's preemption argument therefore has merit. The 72-hour notice requirement burdens enforcement and thus threatens to marginalize copyright itself because copyright is not self-enforcing.[8] Moreover, *879 the provisions aid in the infringement of copyright by hindering plaintiffs' ability to detect a pattern of ongoing infringement through unanticipated follow-up visits.[9] Establishing such a pattern of infringement is necessary in order to obtain injunctive relief and enhanced statutory damages against an infringer who has infringed and will continue to infringe protected works.[10]
The notice requirement also presents a conflict with the federal statute of limitations. Statutes of limitations generally serve to ensure fairness to defendants; "such statutes promote justice by preventing surprises through the revival of claims that have been allowed to slumber until evidence has been lost, memories have faded, and witnesses have disappeared." Burnett v. New York Central Railroad Co., 380 U.S. 424, 428, 85 S.Ct. 1050, 1054, 13 L.Ed.2d 941 (1965); see Aslanidis v. United States Lines, Inc., 7 F.3d 1067, 1074 (2d Cir.1993). Congress established a three-year statute of limitations for infringement suits, see 17 U.S.C. § 507, and thus determined that three years is the appropriate amount of time required to ensure fairness to alleged infringers.
The state has attempted to avoid direct conflict with the federal statute of limitations by creating the notice requirement which allows proprietors to "verify" the circumstances of an alleged infringement almost immediately after the infringement.[11] The notice requirement is thus a limiting device which serves the same purpose as the federal statute of limitations: to ensure fairness to alleged infringers. Under the Supremacy Clause, the state has no power to resist Congress's determination of fairness as embodied in the federal statute of limitations, and its attempt to do so conflicts with federal law.
In addition, the remedies provided by section 31.04.5 stand as an obstacle to the enforcement of the federal copyright statute. This provision empowers the alleged infringer to bring an action (and recover actual damages, injunctive relief, attorneys' fees, and other legal and equitable relief) against plaintiffs if they fail to comply with the notice requirement in section 31.04.4(c). As this Court has found, it will be difficult and frequently impossible for plaintiffs to comply with the notice requirement. If plaintiffs inadvertently fail to give notice, the proprietor is armed in any future federal infringement action with a state law counterclaim.[12] This counterclaim creates the obligation on the part of a federal judge in an infringement action to assess damages against the plaintiff copyright owner if the owner failed to comply with the state provision, even if the owner were to succeed on his infringement claim. *880 Thus, the statute permits the infringer to offset federal copyright damages awarded against him with damages he is entitled to under the state provisions.
This dueling damages scenario is not merely "hypothetical" or "speculative" as characterized by defendants. The statute provides on its face for the private cause of action and corresponding remedies in the event that the plaintiff in a federal infringement suit fails to comply with the state notice requirement. Thus, in order to avoid this inevitable conflict, the state argues that it is possible that the remedies provision in 31.04.5 may not be enforced. See Transcript at 36; Def.'s Brief at 36 (arguing that "under the New York law, an award of damages is discretionary"). This argument must fail, however, because the conflict between the state provisions and the federal copyright statute inheres in the very power itself that is granted to a court to award state remedies to an infringer.
Both the deterrent effect of section 31.04.4(c)'s notice requirement and the nullification of federal remedies on the face of section 31.04.5 create an obstacle to the accomplishment and execution of the full purposes and objective of Congress in enacting the federal copyright statute. This obstacle gives rise to conflict preemption under the Supremacy Clause. Plaintiffs have therefore demonstrated a strong likelihood of success on the merits.

2. Irreparable Injury
It is well-established that a preliminary injunction is meant to protect the moving party from irreparable injury while the action is pending. See, e.g., Doran v. Salem Inn, Inc., 422 U.S. 922, 95 S.Ct. 2561, 45 L.Ed.2d 648 (1975). As such, "the linchpin of [preliminary injunctive] relief is that threatened irreparable harm will be prevented by that injunction." Buckingham Corp. v. Karp, 762 F.2d 257, 262 (2d Cir.1985).
This Court concludes that plaintiffs will suffer irreparable injury if the injunction sought is denied.[13] The 72-hour notice requirement deters plaintiffs from conducting effective investigations, and, as a result, plaintiffs will be unable to establish a pattern of ongoing infringement. Thus, plaintiffs will be prevented from successfully negotiating licenses with proprietors and from recovering full federal remedies such as injunctions, actual damages and statutory damages in their federal infringement actions.
Accordingly, plaintiffs will suffer a loss of licensing fees and a loss of federal remedies. Clearly, lost licensing fees and lost remedies for infringement cannot be reasonably calculated because it is impossible to determine with reasonable certainty how many licenses plaintiffs could have negotiated or infringement remedies they could have recovered had they not be deterred from investigation.[14] Because plaintiffs' monetary loss can not be calculated with a reasonable degree of certainty,[15] their monetary harm is irreparable. *881 See Danielson v. Local 275, 479 F.2d 1033 (2d Cir.1973); Gulf & Western Corp. v. Craftique Productions, Inc., 523 F.Supp. 603, 607 (S.D.N.Y.1981).

Conclusion
The foregoing shall constitute the findings of fact and conclusions of law required by Rule 52(a), Fed.R.Civ.P. Because plaintiffs have shown irreparable injury and a likelihood of success on the merits, plaintiffs' motion for a preliminary injunction is hereby GRANTED. The defendants are hereby ENJOINED from enforcing sections 31.04.4(c) and 31.04.5 of the New York Arts and Cultural Affairs Law. It is further ORDERED that, because it does not appear that defendants will suffer monetary harm as a result of this preliminary injunction, no security need be given by plaintiffs.
So ordered.
NOTES
[1]  The initial letter sent by BMI explains to the proprietor the existence and operation of the federal copyright and/or the need for a license for the public performance of copyrighted music, and offers them a BMI license. Broadcast Music, Inc.'s Reply Memorandum in Further Support of Plaintiff's Motion for a Preliminary Injunction ("BMI's Reply Brief") at 3.
[2]  BMI also follows up the initial contact with personal visits by representatives of BMI who identify themselves as such. BMI's Reply Brief at 3.
[3]  Indeed, defendants concede the legality of these surreptitious enforcement procedures. See Defendant's Memorandum of Law in Opposition to Plaintiff's Motion for Preliminary Injunction ("Def.'s Brief") at 4.
[4]  At oral argument, counsel for BMI, Mr. Berenson, stated that in 95% of investigations, BMI sends investigators to establishments on more than one occasion in order to document such patterns of infringement. See Transcript at 14. Counsel for ASCAP Mr. Reimer stated that such follow-up visits are conducted in about 25% of their investigations. See Transcript at 10-11.
[5]  In its reply brief, plaintiff raised the question of whether these provisions could even have taken effect at all because the "bill passed by the Legislature and signed by Governor Pataki provides that it replaces provisions which were enacted under a previous bills [sic] ... [which] never took effect." Reply Memorandum of Points and Authorities in Support of ASCAP's and BMI's Motion for a Preliminary Injunction ("ASCAP's and BMI's Reply Brief") at 18 n. 10.

Although section 31.04 seems to replace a statute which never took effect, section 3 of Chapter 660, S. 5524 reveals merely an attempt to make the history of section 31.04 appear seamless. The Court sees no serious question as to whether the provisions could have gone into effect on January 1, 1996.
[6]  Plaintiffs have already undertaken compliance with other sections of the 1995 amendments to the New York Arts and Cultural Affairs Law, which include § 31.04.3(b) (requiring that upon entrance onto the premises of a proprietor's business for the purpose of discussing a contract for payment of royalties, an agent from a performing rights society must first identify himself or herself, disclose that the agent is acting on behalf of the performing rights society, and disclose the purpose of the discussion) (emphasis added) and § 31.04.2 (requiring that before entering into a contract for the payment of royalties performing rights societies must provide the proprietor with, inter alia, a schedule of the rates and terms of royalties under the contract, the most current available listing of copyrighted musical works in the repertory, and a toll free telephone number which can be used to answer inquiries of a proprietor regarding specific musical works).
[7]  Defendants also point to the fact that ASCAP has acknowledged in a supporting affidavit that "plaintiffs could have chosen not to seek a TRO or preliminary injunctive relief at this pre-enforcement state" but this strategy would have subjected them to uncertainty as to their federal rights. Reimer aff. ¶ 12, 13. Defendants argue, based on this acknowledgment, that the fact that plaintiffs "did not even consider a course of conduct by which they would try to comply with the New York Law, indicates that, in fact, there is no good reason for this Court to find that compliance is impossible ..." Def.'s Brief at 34-35.
[8]  See BMI, Inc. v. CBS, Inc., 441 U.S. 1, 19 n. 32, 99 S.Ct. 1551, 1562 n. 32, 60 L.Ed.2d 1 (1979) (noting that a copyright owner "has no real way to demand reimbursement for the use of his [musical composition] except through the copyright laws and an effective way to enforce those legal rights"); see also Leo Feist, Inc. v. Young, 138 F.2d 972 (7th Cir.1943) (decrying state registration and licensing requirements as creating a condition precedent to bringing a federal copyright claim, and permitting an infringement action despite non-compliance with the state requirements).
[9]  See AAMC v. Cuomo, 928 F.2d at 522 ("If [a statute] facilitates infringement, it conflicts with the federal Copyright Act and is preempted.").
[10]  Although every single infringement is actionable for damages, see 17 U.S.C. § 501 (1994), an injunction preventing infringement is also available, see 17 U.S.C. § 502, but only where copyright holders have shown that they repeatedly asserted their rights and repeatedly have been ignored by the infringers. See, e.g., Pedrosillo Music, Inc. v. Radio Musical Inc., 815 F.Supp. 511 (D.P.R.1993); Milene Music, Inc. v. Gotauco, 551 F.Supp. 1288 (D.R.I.1982). See also Pacific and Southern Co., Inc. v. Duncan, 744 F.2d 1490, 1499 (11th Cir.1984), cert. denied, 471 U.S. 1004, 105 S.Ct. 1867, 85 L.Ed.2d 161 (1985).

Such a showing is also required for enhanced statutory damages under § 504(c)(2) for willful infringements. See N.A.S. Import, Corp. v. Chenson Enterp., Inc., 968 F.2d 250 (2d Cir.1992); Peer Int'l Corp. v. Luna Records, Inc., 887 F.Supp. 560 (S.D.N.Y.1995).
[11]  According to the state, "[t]he intent and effect of the New York law is ... to ensure that proprietors, who are the targets of infringement [sic] investigations, learn, in the simplest terms, what copyrighted music investigators claim to have heard promptly after the fact in order to reconstruct and verify the circumstances." Def.'s Brief at 3.
[12]  Indeed, this counterclaim may be considered a compulsory counterclaim under Rule 13(a), Fed.R.Civ.P., because it arises out of the same transaction or occurrence  i.e., the observation of infringing performances  that is the subject matter of the plaintiff's infringement claim. See 6 Charles A. Wright, Arthur R. Miller & Mary Kay Kane, Federal Practice and Procedure § 1409 (1990).
[13]  Plaintiffs argue that a presumption of irreparable injury applies because the infringement of copyrights is at issue. The presumption does not apply to this motion for preliminary injunction because the presumption is appropriate only where the plaintiff has made a prima facie showing of infringement, which consists of a showing that the plaintiff owns a valid copyright and the defendant has engaged in unauthorized copying. See Hasbro Bradley, Inc. v. Sparkle Toys, Inc., 780 F.2d 189, 192 (2d Cir.1985). The issue here is the hindrance of plaintiffs' ability to detect the copyright infringement. This Court declines to extend the presumption to cases such as this in which infringement has yet to be proved.
[14]  Indeed, as plaintiff's counsel pointed out at oral argument, there is no way to know how many "users" are playing protected copyrighted works without a license. "In different industries, there are different numbers of users. In TV network say there are three or four, depending on how you count; in cable there may be 100; in radio are 10,000 stations. When you get to bars and grills and restaurants and retail stores, there may be a million. No one really knows, because they are so small and idiosyncratic. As you get to large and large [sic] universes of users, the enforcement problems get more and more daunting." Transcript at 7.
[15]  Furthermore, although neither party claims that the damages could be reasonably calculated, even if they were calculable, plaintiffs' injury would nevertheless be irreparable. Plaintiffs could not collect monetary damages from defendants in a federal action because defendants enjoy Eleventh Amendment immunity, and this Court is barred from considering the availability of state court relief. United States v. State of New York, 708 F.2d 92 (2d Cir.1983), cert. denied, 466 U.S. 936, 104 S.Ct. 1907, 80 L.Ed.2d 456 (1984); New York State Trawlers Ass'n v. Jorling, 764 F.Supp. 24 (E.D.N.Y.), aff'd, 940 F.2d 649 (2d Cir.1991).
