OPINION ON REHEARING
This appeal requires us to determine the validity of § 106(b) of the Bankruptcy Code, 11 U.S.C. § 106(b),
We therefore vacate our earlier decision and affirm the district court’s holding that upon appellants’ filing a proof of claim in the bankruptcy court, they are not shielded by the Eleventh Amendment from compulsory counterclaims arising from the same transaction or occurrence as was the subject of the proof of claim.
I. Background
In March 1984, the Puerto Rico Department of Health (the “Department”) and the Administration of Health Facilities (“AFASS”) — both of which are instrumen-talities of the Commonwealth of Puerto Rico — executed a series of contracts with a private entity, Arecibo Community Health Care, Inc. (“ACHI”), for the administra
On June 30, 1991, the Department filed suit against ACHI in the Superior Court of Puerto Rico. The complaint alleged that ACHI had failed to render services pursuant to the administration contract with the Department. Thereafter, on July 2, 1991, ACHI filed a voluntary petition for bankruptcy under Chapter 11 of the Bankruptcy Code. The bankruptcy court determined that the contract in dispute had been terminated prior to the filing of the petition, whereupon the Department and AFASS proceeded to file a proof of an unsecured claim for ACHI’s breach of the administration contract. The claim was for the amount of $1,650,449.16.
The bankruptcy proceeding was subsequently converted to one under Chapter 7, and a trustee was appointed. The trustee commenced an adversary action against the Department and AFASS asserting various claims under state law. The claims allegedly arise from the same contract and operative facts as both the action filed by the Department in the Puerto Rico courts and the proof of claim filed in federal bankruptcy court. The trustee sought to recover the sum of $8,204,494.48, interest accrued since 1991, attorneys’ fees, and litigation costs.
In their Answer to the Complaint, the Department and AFASS (“appellants”) asserted that the trustee’s claims were barred by the Eleventh Amendment.
The district court agreed with the bankruptcy court as to the invalidity of § 106(a),
Appellants then brought their cause to this court by way of an interlocutory appeal.
After we rendered our decision, ACHI (“appellee”) and the United States moved for rehearing and rehearing en banc. The panel agreed to rehear the case.
II. Analysis
A. Standard of review
Whether the district court correctly upheld the constitutionality of § 106(b) and found that appellants had waived their Eleventh Amendment immunity is an issue of law. We therefore review the lower court’s ruling de novo. See Metcalf & Eddy, Inc. v. Puerto Rico Aqueduct & Sewer Auth.,
B. Stare decisis
In WJM, Inc. v. Massachusetts Department of Public Welfare,
The principle that a ruling of law by a panel of this court is binding upon subsequent panels is “an integral component of our jurisprudence.” Stewart v. Dutra Constr. Co.,
In this case, appellants do not argue that the earlier decision in WJM has been directly overruled by subsequent controlling authority; rather, they contend that the Supreme Court’s decision in College Savings provides intervening authority that, at the very least, requires this Court to revisit the soundness of WJM in light of recent jurisprudential developments.
In College Savings, the court addressed a private suit against an arm of the State of Florida for allegedly engaging in false and misleading advertising of its tuition prepayment plan in violation of § 43(a) of the Lanham Act, 15 U.S.C.A. § 1125(a) (1995). The Trademark Remedy Clarification Act (“TRCA”) amended the Lanham Act to provide that state entities “shall not be immune, under the eleventh amendment ... from suit in Federal court ... for any violation under this Act,” and that remedies shall be available against state entities “to the same extent as such remedies are available ... in a suit against” non-state entities. Pub.L. 102-280, § 3(b), 106 Stat. 3567 (1992) (codified in 15 U.S.C.A. § 1122 (1995)).
Relying on the theory of “constructive waiver” announced in Parden v. Terminal Railway of the Alabama State Docks Department,
Appellants in the present case contend that § 106(b) and the holding in WJM violate the central teaching of College Savings — namely, that Congress may not smuggle an abrogation provision past the courts merely by dressing it up to notify a state that it will waive its Eleventh Amendment immunity by engaging in a certain activity. Cf. College Savings,
C. Waiver of Eleventh Amendment immunity
It has long been recognized that a state’s sovereign immunity is “a personal privilege which it may waive at pleasure.”
A state may waive its Eleventh Amendment immunity by making a “ ‘clear declaration’ that it intends to submit itself to the jurisdiction of the federal courts.” College Savings,
Similarly, a state may also explicitly waive the protections of the Eleventh Amendment by choosing to participate in a federal program for which waiver of immunity is a stated condition. See Mills v. Maine,
Lastly, a state may waive its immunity through its affirmative conduct in litigation.
In Gardner v. New Jersey,
he who invokes the aid of the bankruptcy court by offering a proof of claim and demanding its allowance must abide the consequences of that procedure.... When the State becomes the actor and 'files a claim against the fund, it waives any immunity which it otherwise might have had respecting the adjudication of the claim.
Id. at 573-74,
We do not accept appellants’ contention that no relevant difference exists between engaging in commercial activity and filing a proof of claim in a federal bankruptcy court. Although it is certainly “lawful” for a state to file a proof of claim, we believe that calling upon a federal court’s jurisdiction is fundamentally different, for purposes of the Eleventh Amendment, from merely conducting commercial activity. The Supreme Court itself recognized in College Savings that a state relinquishes its immunity under the Eleventh Amendment “if [it] voluntarily invokes [the] jurisdiction [of the federal courts].... ” Id. at 675-76,
The conclusion that a state’s filing of a proof of claim may validly effect a partial waiver of its sovereign immunity is further buttressed by those cases which hold that other constitutional rights are considered to be waived by the same mechanism.
In sum, we do not read § 106(b) to rely on the now discredited theory of constructive waiver. Instead, that provision draws on the well-established principle of equity that a state waives its Eleventh Amendment immunity by availing itself of the jurisdiction of the federal courts.
D. Scope of waiver
Appellants also argue that, even if the waiver principle of Gardner remains sound, the scope of waiver permitted in Gardner represents the very outer limits of constitutionality. See Gardner,
Yet, to the extent we are asked to determine whether § 106(b) permissibly waives a state’s immunity only with regard to defensive counterclaims for recoupment, or whether that provision may be applied, as written, to allow for a broader affirmative recovery from the state, we believe both that the precedential effect of WJM is decisive on this issue and that, in any event, allowance of a broader affirmative recovery is the legally and constitutionally appropriate way to construe the scope of this waiver.
Nothing in College Savings purports to restrict the constitutionally permissible scope of waiver triggered by the state’s invocation of the jurisdiction of a federal court. Cf.
The language of § 106(b) itself provides for a waiver of all claims arising out of the same transaction or occurrence as the state’s claim. This language creates a waiver, the scope of which is essentially similar to compulsory counterclaims under the Federal Rules. See Fed.R.Civ.P. 13(a); cf. Fed.R.Civ.P. 13(c) (stating that a counterclaim “may claim relief exceeding in amount or different in kind from that sought n the pleading of the opposing party”). Where a state avails itself of the federal courts to protect a claim, we think it reasonable to consider that action to waive the state’s immunity with respect to that claim in toto and, therefore, to construe that waiver to encompass compulsory counterclaims, even though they could require affirmative recovery from the state. The alternative approach would have the unfortunate effect of preventing the complete adjudication of the claim in a single forum, undermining the principles that led the framers of the Federal Rules to compel the litigation of certain counterclaims as a part of a single lawsuit.
Recent cases from our sister circuits lend further support to WJM and our conclusion here that § 106(b) validly waives a state’s Eleventh Amendment immunity with respect to the full amount of any compulsory counterclaims. In In re Straight,
Moreover, we believe any potential unfairness resulting from a state having to waive its immunity as a prerequisite for participation in the bankruptcy proceedings is placed in perspective by recognizing the concrete unfairness that a contrary rule would impose on the other bankruptcy creditors, whose pro rata share of the bankruptcy estate would be diminished because the estate cannot obtain the full amount of debt owed to it by the state. “[T]he law of bankruptcy is founded upon principles of equity. That foundation requires all persons or entities in the same class must be treated alike. Thus, creditors coming to the bankruptcy court for relief expect they will fare no better or no worse than others of their stature.” In re Straight,
III. Conclusion
For the reasons stated above, we VACATE our prior panel decision and AFFIRM the ruling of the district court. This matter is remanded to the district court for further proceedings consistent with this opinion.
Notes
. Section 106(b) of the Bankruptcy Code provides that the filing of a proof of claim in federal bankruptcy court by "[a] governmental unit ... is deemed [to be a] waiver of sovereign immunity with respect to a claim against such governmental unit that is property of the estate and that arose out of the same transaction or occurrence out of which the claim of such governmental unit arose.” 11 U.S.C.A. § 106(b) (West Supp.2001).
. The Eleventh Amendment provides: '.‘The Judicial power of the United States shall not be construed to extend to any suit in law or equity, commenced or prosecuted against one of the United States by Citizens of another State, or by Citizens or Subjects of any Foreign State.” U.S. Const, amend. XI. It has long been established that, notwithstanding its literal language, the Eleventh Amendment extends to bar suits instituted in federal courts against a state by its own citizens. See Hans v. Louisiana,
. It is well settled in this circuit that the Commonwealth of Puerto Rico "is protected by the Eleventh Amendment to the same extent as any state.... ” Ortiz-Feliciano v. Toledo-Dávila,
. Section 106(a) states in part: "Notwithstanding an assertion of sovereign immunity, sovereign immunity is abrogated as to a governmental unit ...” 11 U.S.C.A. § 106(a) (West Supp.2001).
. The parties to this appeal do not challenge the lower court’s conclusion that Congress lacks the authority to abrogate Puerto Rico's Eleventh Amendment immunity pursuant to § 106(a). See In re Sacred Heart Hosp.,
. ”[P]retrial orders granting or denying Eleventh Amendment immunity [are] immediately appealable.” Metcalf & Eddy v. Puerto Rico Aqueduct & Sewer Auth.,
. That provision, former section 106(a) of the Bankruptcy Code, stated: "A governmental unit is deemed to have waived sovereign immunity with respect to any claim against such governmental unit that is property of the estate and that arose out of the same transaction or occurrence out of which such governmental unit's claim arose.” 11 U.S.C.A. § 106(a) (1982) (superseded).
. Indeed, then-Chief Judge Campbell noted in WJM that Parden was likely ripe for a partial overruling by the Supreme Court. See
. A state’s Eleventh Amendment immunity may also be abrogated by congressional enactment, provided however that Congress expresses its unequivocal intention to do so and acts pursuant to a valid grant of constitutional authority. See Loro v. New Hampshire,
. A state official may only waive the state’s sovereign immunity during the course of litigation where specifically authorized to do so by that state's constitution, statutes, or decisions. See Ford Motor Co. v. Dep't of Treasury,
. Indeed, the court in College Savings could have limited the import of Gardner by characterizing it as a decision that does not implicate the Eleventh Amendment at all. That is, it could have stated that the defensive objection to the state's proof of claim at issue in Gardner was simply not a “suit ... commenced or prosecuted against ... [a] State” within the meaning of the Eleventh Amendment. Cf. Gardner,
. By contrast, in College Savings the court noted that the constructive-waiver mechanism rejected in that case is "simply unheard of in the context of other constitutionally protected privileges.”
. This is not to say that an entity filing a claim with the bankruptcy court must forfeit the entire panoply of constitutional rights. Yet, even if this were a case of waiver by a state's participation in a federal program (as in the second category of waiver noted
. Although the Fourth Circuit upheld the substance of § 106(b), it stated in dictum that: “While 11 U.S.C. § 106(b) may correctly describe those actions that, as a matter of constitutional law, constitute a state's waiver of the Eleventh Amendment, it is nevertheless not within Congress’ power to abrogate such immunity by 'deeming' a waiver.” See In re Creative Goldsmiths,
. Consistent with Gardner, several circuits have recognized that a state’s decision to invoke the bankruptcy court's jurisdiction will effect some waiver of Eleventh Amendment immunity. With the exception of the Seventh Circuit, however, those courts have yet to decide whether the scope of waiver extends to counterclaims that would permit affirmative recovery against the state. But cf. In re Friendship Medical Center, Ltd., 710 F.2d
