The Fund sent each appellee a letter (“the liability notice”) on June 9, 2003, formally notifying them of their liability, as required by 29 U.S.C. §§ 1382(2) and 1391(b)(1)(A), and demanding payment commencing August 9, 2003. The letter stated that Express and S & P were “responsible for [Howard’s] withdrawal liability” because they were “affiliated with” Howard’s. When Express and S & P failed to respond or to make payment, the Fund sent them a second letter (“the default notice”), stating that they were subject to default judgment if they did not cure their failure to pay within sixty days.3
Soon after, appellees submitted a timely request for review under 29 U.S.C. § 1399(b)(2), setting forth legal and factual arguments as to why they were not responsible for Howard’s withdrawal liability. The Fund did not immediately respond. Instead, believing that appellees were required to make interim liability payments under the MPPAA’s “pay-first-question-later” regime, the Fund filed a collection action in federal court in November 2003. See 29 U.S.C. §§ 1399(c)(2) (requiring employers who receive a liability notice to make interim payments, even if they dispute liability pending review or arbitration); see also id. § 1401(d) (providing for interim payments notwithstanding arbitration); Bowers v. Transportacion Maritima, Mexicana, S.A., 901 F.2d 258, 263 (2d Cir.1990) (describing the pay-first-question-later regime).
In its complaint, the Fund claimed that appellees were “under common control” with Howard’s, and thus could be held responsible for its withdrawal liability, under 29 U.S.C. § 1301(b). Alternatively, the Fund alleged that appellees were liable as alter egos of Howard’s, a claim that the Fund subsequently bolstered by asserting that appellees had engaged in transactions to “evade or avoid withdrawal liability,” as defined by 29 U.S.C. § 1392(c).
Over the next few months, the parties filed a number of motions and cross-motions, as set forth in the district court’s opinion. See Teamsters, 321 F.Supp.2d at 443-44. In January 2004, Express and S & P filed a timely demand for arbitration. See 29 U.S.C. § 1401. Throughout the district-court proceedings, the Fund maintained that whether or not appellees were employers within the meaning of the MPPAA was a matter for the arbitrator, not the court. See id. at 441, 444. Pending arbitration, the Fund argued, appellees were required to make interim payments under the MPPAA’s pay-first-question-later regime. Id. at 440-41. In response to appellees’ motion for a preliminary injunction to halt the collection action, the Fund cross-moved for summary judgment, seeking an order directing appellees to make the demanded interim payments pending arbitration. Id. at 437. The Fund’s summary judgment motion was made without the benefit of discovery on the merits. Id. at 446. Express and S & P, after some procedural missteps, see id. at 443-44, eventually took the position that employer status was a matter for the court, notwithstanding MPPAA’s arbitration provisions, id. at 441, and cross-moved for summary judgment on the employer-status issue, id. at 444.
The district court agreed with Express and S & P. It concluded first that employer status was a matter for the court, relying primarily on this court’s decision in
3
The MPPAA defines default as “the failure ... to malte, when due, any payment under this section, if the failure is not cured within 60 days after the employer receives written notification from the plan sponsor of such failure.” 29 U.S.C. § 1399(c)(5)(A). If an employer fails to pay after receiving a default notice, the plan sponsor may require immediate payment of the outstanding liability. Id. § 1399(c)(5).