nation, the District Court noted that the “controlling principle” of the case “is that Congress’ intent that withdrawal liability-under the MPPAA be born by the employer, and that the employees’ retirement benefits be thereby protected, may not be defeated by private contractual arrangement.” Id. at * 1. This appeal followed.
II.
A.
Pittsburgh Mack alleges that the District Court had jurisdiction pursuant to section 301 of the Labor Management Relations Act (“LMRA”), 29 U.S.C. § 185. Section 301 provides that:
Suits for violation of contracts between an employer and a labor organization representing employees in an industry affecting commerce ... may be brought in any district court of the United States having jurisdiction of the parties, without respect to the amount in controversy or without regard to the citizenship of the parties.
29 U.S.C. § 185(a). The Union contends that there is no jurisdiction under section 301 once a CBA has been terminated. It further contends that because the CBAs were terminated when Pittsburgh Mack no longer employed Union workers, the District Court lacked jurisdiction. Pittsburgh Mack responds that the CBAs were not terminated. It is unnecessary for us to resolve whether or not the CBAs were terminated, however, because despite the Union’s assertions to the contrary, the existence of a contract is not a jurisdictional element of a section 301 claim.
This Court has, in the past, noted that “a prerequisite for section 301 jurisdiction is a contract between the employer and labor organization.” International Brotherhood of Teamsters, Chauffeurs, Warehousemen & Helpers of America, Local 249 v. W. Pa. Motor Carriers Ass’n, 660 F.2d 76, 83 (3d Cir.1981). However, after the Supreme Court’s decision in Arbaugh v. Y & H Corp., 546 U.S. 500, 126 S.Ct. 1235, 163 L.Ed.2d 1097 (2006), this is no longer the case.
In Arhaugh, the Supreme Court addressed concerns that courts were conflating and confusing subject matter jurisdiction with the need to prove the essential elements of a claim for relief. Id. at 511, 126 S.Ct. 1235. The Court adopted a “bright line” test to determine whether a statute (or a provision thereof) was jurisdictional or part of the merits. Id. at 515-16, 126 S.Ct. 1235. The test, the Court in Arhaugh explained, is as follows:
If the Legislature clearly states that a threshold limitation on a statute’s scope shall count as jurisdictional, then courts and litigants will be duly instructed and will not be left to wrestle with the issue. But when Congress does not rank a statutory limitation on coverage as jurisdictional, courts should treat the restriction as nonjurisdictional in character.
Id. (citation and footnote omitted).
The Court of Appeals for the Sixth Circuit in Winnett v. Caterpillar, Inc., 553 F.3d 1000, 1006, 1007 (6th Cir.2009), applied the Arhaugh test to the question of whether the existence of a union contract is a jurisdictional prerequisite under section 301. The court in Winnett held that the existence of a union contract is not a jurisdictional prerequisite under section 301 because Congress did not “clearly state[ ]” that the existence of such a contract was a limit on subject matter jurisdiction. Id. at 1006. In so holding, the court in Winnett analyzed section 301, noting that the only time jurisdiction is mentioned in the statute is in the context of personal jurisdiction. Id. The court observed that the statute actually “relaxes subject-matter jurisdiction by permitting federal courts to handle such cases without regard to the amount in controversy or the