United Mine Workers of America 1974 Pension Plan v. Energy West Mining Company ( 2020 )


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  •                             UNITED STATES DISTRICT COURT
    FOR THE DISTRICT OF COLUMBIA
    UNITED MINE WORKERS OF AMERICA
    1974 PENSION PLAN, et al.,
    Plaintiffs,
    v.                                             Civil Action No. 1:18-cv-01905 (CJN)
    ENERGY WEST MINING COMPANY,
    Defendant.
    MEMORANDUM OPINION
    Plaintiffs United Mine Workers of America 1974 Pension Plan (the “1974 Plan” or
    “Plan”) and several of its trustees seek to enforce an arbitration award against Defendant Energy
    West Mining Company. See generally Compl., ECF No. 1. Energy West counterclaims,
    petitioning the Court to vacate or modify the award. See generally Countercl., ECF No. 8. The
    Court agrees with the Plan that the arbitrator’s award should not be disturbed, and therefore
    grants summary judgment to the Plan, denies it to Energy West, and orders Energy West to
    comply with the terms of the award.
    I.     Background
    Energy West once operated a coal mine in Huntington, Utah and employed about 180
    miners to staff it. See Def.’s Mem. in Supp. of Energy West’s Mot. for Summ. J. (“Def.’s Mot.”)
    at 4, ECF No. 29-1. As is standard among coal mining companies, Energy West entered into a
    series of collective bargaining agreements with the United Mine Workers of America
    (“UMWA”), the prevailing coal miners’ union. See Pls.’ Mem. of P. & A. in Supp. of its Mot.
    for Summ. J. to Enforce Arb. Award (“Pls.’ Mot.”) at 7, ECF No. 32-1; Parties’ Joint Stipulation
    1
    of Facts (“Joint Stipulation”) ¶ B.3, Joint App’x (J.A.) 419, ECF No. 28. A provision of those
    agreements required Energy West to contribute to the Union’s 1974 Pension Plan, the multi-
    employer plan that has covered most coal miners in the United States since the enactment of the
    Employee Retirement Income Security Act of 1974 (ERISA), 29 U.S.C. §§ 1001–1461, as
    amended by the Multiemployer Pension Plan Amendments Act of 1980, Pub. L. No. 96-364, 94
    Stat. 1208 (1980). See Pls.’ Mot. at 7. “The contributions made by employers participating in
    such a multiemployer plan are pooled in a general fund available to pay any benefit obligation of
    the plan.” Concrete Pipe & Prods. of Calif., Inc. v. Constr. Laborers Pension Tr. for S. Calif.,
    
    508 U.S. 602
    , 605 (1993). “An employee obtains a vested right to secure benefits upon
    retirement after accruing a certain length of service for [any] participating employers.”
    Id. at 606.
    Since 2014, the Plan has retained United Actuarial Services (“UAS”) to assist in
    administering the Plan’s finances. Joint Stipulation ¶¶ B.10–11, J.A. 420. One of United’s
    duties is to prepare an annual valuation report, which assesses the Plan’s financial health and
    estimates the performance of its investment portfolio for the coming year.
    Id. ¶ B.8;
    see also
    UAS’s UMWA 1974 Pension Plan Actuarial Valuation Report for Plan Year Commencing July
    1, 2015 (“2015 Valuation”), J.A. 556–630. United employee William Ruschau, the Plan’s
    enrolled actuary, prepared the valuation reports for the years 2014 and 2015. See generally 2015
    Valuation; UAS’s UMWA 1974 Pension Plan Actuarial Valuation Report for Plan Year
    Commencing July 1, 2014 (“2014 Valuation”), J.A. 730–803; William Ruschau Dep. 33:20–
    36:4, J.A. 432. He categorized the Plan as being in “critical and declining status” under the
    Pension Protection Act of 2006, Pub. L. No. 109-280, 120 Stat. 780 (2006), as amended by the
    Multiemployer Pension Reform Act of 2014, Pub. L. No. 113-235, div. O, 128 Stat. 2130, 2773–
    2
    882 (2014). By 2015, Ruschau anticipated that the Plan will likely be insolvent by 2022. 2015
    Valuation at J.A. 571; Joint Stipulation ¶ B.7, J.A. 420.
    As part of his calculations, Ruschau assumed that the Plan’s investments would achieve a
    net rate of return of 7.5% in the 2015 plan year—the same rate Plan actuaries had projected in
    previous years. 2015 Valuation at J.A. 565. Ruschau based that assumption on a host of factors,
    including the Plan’s historical performance; in fact, the Plan’s actual rate of return for 2014–
    2015 was 7.31%—not far off the mark. Id.; see also
    id. at 566
    (charting the Plan’s “Historical
    Rates of Net Investment Return”). The 7.5% assumed rate of return was a critical piece in
    determining whether the Plan could expect to experience a funding shortfall in the coming year,
    and therefore whether participating employers would be on the hook to make extra contributions
    to keep the Plan afloat. See Def.’s Mot. at 8; 29 U.S.C. § 1084 (setting “[m]inimum funding
    standards for multiemployer plans”).
    That same year, Energy West shut down its coal-mining operations and withdrew from
    the Plan. Joint Stipulation ¶ C.6, J.A. 421. When an employer withdraws from a multiemployer
    pension plan, “the employer is liable to the plan in [an] amount” commonly known as its
    “withdrawal liability.” 29 U.S.C. § 1381(a). In short, the Plan must calculate the employer’s
    share of the Plan’s “unfunded vested benefits,” which is “the difference between the present
    value of the pension fund’s assets and the present value of its future obligations to employees
    covered by the pension plan.” Chicago Truck Drivers, Helpers and Warehouse Workers Union
    (Indep.) Pension Fund v. CPC Logistics, Inc., 
    698 F.3d 346
    , 347 (7th Cir. 2012) (Posner, J.).
    The withdrawing “employer must pay [its] share to the fund . . . so that the plan can pay the
    employer's share of the plan's unfunded vested benefits as those benefits come due in the future.”
    Id. at 348.
    3
    The Plan asked Ruschau to compute Energy West’s withdrawal liability. See Def.’s Mot.
    at 5. Ruschau first determined that, as of June 30, 2015, the Plan had over $3.8 billion in assets.
    See Pls.’ Emp’r Withdrawal Liability Notice and Demand, and Req. for Info., under 29 U.S.C.
    § 1399 (“Liability Notice”) at J.A. 552. He then calculated that the present value of the Plan’s
    future obligations to participating employees—the cost of benefits it was obligated eventually to
    pay out—stood at over $9.5 billion.
    Id. To reach
    that figure, Ruschau assumed that the Plan’s
    assets would grow at the Pension Benefit Guarantee Corporation’s (PBGC) assumed rate for
    annuities (2.71% for the first twenty years and 2.78% thereafter)—not the 7.5% rate of return he
    had used in his 2015 Valuation for the Plan’s expected rate of return on its investments. Id.; see
    also 2015 Valuation at J.A. 613. The resulting calculations showed a funding shortfall of over
    $5.7 billion. Liability Notice at J.A. 552.
    Ruschau then calculated that, based on the number of hours Energy West employees had
    worked over the previous five-year period in comparison with the total number of hours worked
    by all employees participating in the plan, Energy West was responsible for just over two percent
    of the total, yielding a withdrawal liability of $115,119,099.34.
    Id. at J.A.
    551. The Plan gave
    Energy West the option of paying a lump sum up front or paying in monthly installments of
    $247,251.12 that would last indefinitely. 1
    Id.
    at J.A.
    542.
    Energy West balked at those numbers and took the Plan to arbitration. Def.’s Mot. at 6.
    The Parties submitted two questions for Arbitrator Mark L Irvings to decide:
    1
    Under ERISA, the monthly installment payments are capped so that the withdrawing
    employer’s installment payments roughly reflect what it was paying monthly before withdrawal.
    See 29 U.S.C. § 1399(c)(1)(C). In addition, in most circumstances, ERISA imposes a twenty-
    year cap on installment payments, regardless of the total liability. See
    id. § 1399(c)(1)(B).
    But
    as discussed below, the Plan takes the position that that twenty-year cap does not apply to it. See
    Section III.B, infra.
    4
    1. Whether the actuarial assumptions used . . . to calculate Energy
    West’s withdrawal liability were unreasonable in the aggregate . . . ?
    2. Whether the UMWA 1974 Pension Plan is exempt from the 20-
    year cap on withdrawal liability installment payments set forth in
    [29 U.S.C. § 1399(c)(1)(B)]?
    Award at J.A. 1. Energy West first argued that it was unreasonable as a matter of law for
    Ruschau to have used one rate (7.5%) to estimate the fund’s expected return on investments and
    a much lower rate (2.71%–2.78%) to estimate the contributions required for Energy West to fund
    future benefits for its employees. Arb. Tr. Day 1 20:11–21:19, J.A. 78–79. Energy West argued
    in the alternative that even if the rates need not be identical, the stark difference between the two
    rates Ruschau selected caused his calculations to be unreasonable under ERISA.
    Id. Second, Energy
    West contended that the Plan was no longer subject to any exemption from the 20-year
    cap on installment payments because of changes in its tax consideration that removed it from the
    set of multiemployer pension plans that Congress exempted from the cap decades ago.
    Id. 21:20–24:14, J.A.
    79–82.
    Irvings conducted two days of hearings in late 2017. Award at J.A. 1. As to the question
    of reasonable discount rates, Irvings reviewed Ruschau’s deposition testimony about how he had
    computed Energy West’s withdrawal liability.
    Id. at J.A.
    13; see also Ruschau Dep. at J.A. 423–
    69. Irvings then heard testimony and considered an expert report from Scott Hittner, an actuary
    and consultant testifying on behalf of Energy West. See Arb. Tr. Day 1 35:14–171:1, J.A. 93–
    229; see also Hittner’s Expert Report, J.A. 523–39. Hittner explained that, in his opinion, when
    an actuary selects a discount rate for use in calculating an employer’s withdrawal liability, “the
    best measure . . . is a market[-]consistent discount rate” akin to the prevailing rates for bond
    trading. Arb. Tr. Day 1 59:19–62:8, J.A. 117–20. Because the 1974 Plan is in critical status and
    is projected to become insolvent in the next decade, Hittner suggested, “[a] market[-]consistent
    5
    discount rate would necessarily have to reflect those factors” and would therefore need to be
    higher to account for the Plan’s low creditworthiness.
    Id. 67:16–70:7, J.A.
    125–28.
    In other words, Hittner opined that because Ruschau knew that the Plan was going to stop
    paying out benefits in 2022 (or reduce retirees’ entitlements), it made little sense to use a low
    discount rate and thereby make Energy West pay a premium to exit the Plan.
    Id. 76:7–77:12, J.A.
    134–35. Using the low PBGC rate, in Hittner’s view, was akin to purchasing an annuity
    from a reputable insurance company with very little chance of default—nothing like purchasing
    benefits from a pension plan that was likely to default in only a few years.
    Id. 83:21–84:16, J.A.
    141–42. Hittner asserted that the use of a low discount rate, rather than the 7.5% minimum-
    funding rate, overstated the Plan’s unfunded vested liabilities by 141%, or $3.4 billion.
    Id. 72:7– 20,
    J.A. 130; 78:19–79:4, J.A. 136–37. He believed that the proper discount rate would have
    been somewhere in the range of 6.0%–6.5%. Hittner’s Report ¶ 26, J.A. 532–33. But on cross-
    examination, Hittner admitted that guidance from the national Actuarial Standards Board permits
    the use of annuity-like rates (such as the PBGC rates) when calculating withdrawal liability:
    Q: . . . The guidance says that the actuary may consider a rate
    implicit in annuity prices. You’ve already agreed that the PBGC
    rates are a proxy for annuity prices. So, are you saying it was
    unreasonable for the plan’s actuary to follow this guidance from the
    [Actuarial Standards of Practice (ASOP)]?
    A: I don’t think it was inappropriate for the actuary to follow the
    guidance of the ASOP, but in my expert opinion, it would be more
    appropriate to consider a market[-]consistent measure that is
    reflective of the 1974 Plan’s ability to continue to pay benefits
    relative to the rates that are implicit in the PBGC or the—the rates
    implicit in the annuity prices that are reflected in the PBGC interest
    rates.
    Q: Okay. When you say you agreed that it was not inappropriate
    for the plan’s actuary to follow this guidance, would you agree that
    it was then not unreasonable for the actuary to follow this guidance?
    6
    A: It was not unreasonable for the actuary to follow the guidance,
    but, again, the rates implicit in annuity prices I don’t think—in my
    view, are not the most appropriate basis for setting the discount rate.
    Arb. Tr. Day 1 148:9–149:12, J.A. 206–07; see also Actuarial Standards Board, ASOP No. 4,
    Measuring Pension Obligations and Determining Pension Plan Costs or Contributions (2013),
    J.A. 1230–65; Actuarial Standards Board, ASOP No. 27, Selection of Economic Assumptions
    for Measuring Pension Obligations (2013), J.A. 1266–1303.
    Dr. Ethan Kra, himself an actuary, submitted an expert report and testified on the Plan’s
    behalf. Arb. Tr. Day 2 179:9–269:18, J.A. 286–369; see also Kra’s Expert Report, J.A. 470–
    522. He testified that, in his opinion, Hittner’s proposed method of pegging withdrawal-liability
    discount rates to prevailing rates in the bond markets “flies in the face of widely accepted
    actuarial practice.” Arb. Tr. Day 2 191:21–192:5, J.A. 298–99.
    It is not in the literature. . . . I don’t believe any fund in the United
    States . . . uses this method. I have not heard of anyone proposing
    it. I’ve not heard it discussed at any actuarial meetings. In
    committees, task forces, . . . this approach was never broached,
    never came up in any of the discussions at the practice council or at
    the pension committee in all the years that I sat on [it].
    Id. 192:1–22, J.A.
    299. Kra also testified that Hittner’s method would create perverse incentives
    for employers because as a fund approaches insolvency, the discount rate for any one
    withdrawing employer would go up in order to account for the plan’s impending default.
    Id. 199:4–203:21, J.A.
    306–10. Employers would therefore compete to be the next-to-last
    participant out the door, because that employer’s withdrawal-liability discount rate would be so
    high that the employer would owe next to nothing upon withdrawal.
    Id. The last
    employer,
    however, would then be stuck holding the bag, responsible for funding all future benefits—even
    if the fund were to cut back on benefits and restructure, effectively extending insolvency out into
    7
    the future.
    Id. Kra testified
    that such an actuarial method was inconsistent with actuarial
    guidance and practice, as well as the governing statutes.
    Id. In his
    August 7, 2018 award, Arbitrator Irvings concluded that Ruschau’s assumptions
    underlying his calculation of Energy West’s withdrawal liability were not unreasonable and that
    there is no cap on Energy West’s installment payments. Award at J.A. 50–56. He therefore
    upheld both the Plan’s calculation of Energy West’s withdrawal liability and its conclusion that
    the installment payments would continue indefinitely.
    Id. at J.A.
    56.
    The Plan filed this suit one year later, seeking to enforce the award. See generally
    Compl. (citing 29 U.S.C. §§ 1401(b)(2), (3)). Energy West answered and filed a counterclaim in
    which it asked the Court to correct the arbitrator’s alleged legal errors and either vacate and
    remand to the arbitrator or modify the award. See generally Countercl. (citing 29 U.S.C.
    § 1401(b)(2)). The Parties filed Cross-Motions for Summary Judgment on the same issues they
    submitted for arbitration: whether the actuarial assumptions were unreasonable and whether the
    number of installments Energy West must pay to satisfy its withdrawal liability is capped. See
    generally Pls.’ Mot. for Summ. J. to Enforce Arb. Award, ECF No. 32; Def.’s Mot. for Summ.
    J., ECF No. 29.
    II.    Legal Standard
    ERISA requires the use of arbitration to resolve disputes between multiemployer pension
    plans and participating employers. 29 U.S.C. § 1401(a)(1). For the purposes of arbitration, “any
    determination made by a plan sponsor under [the provisions governing calculation of withdrawal
    liability] is presumed correct unless the party contesting the determination shows by a
    preponderance of the evidence that the determination was unreasonable or clearly erroneous.”
    Id. § 1401(a)(3)(A).
    The statute permits the parties to go to court “to enforce, vacate, or modify
    8
    the arbitrator’s award.”
    Id. § 1401(b)(2).
    “Any arbitration proceedings . . . shall . . . be
    conducted in the same manner, subject to the same limitations . . . , and enforced in United States
    courts as an arbitration proceeding carried out under [the Federal Arbitration Act, 9 U.S.C. § 1 et
    seq.]”
    Id. § 1401(b)(3).
    The Parties dispute exactly what the statute requires the Court to do in reviewing the
    award. The Plan contends that the Court should apply the deferential standard of the Federal
    Arbitration Act, which permits the Court to overturn the arbitrator’s award only if it was the
    product of corruption, fraud, or undue means or if the arbitrator exceeded his authority. Pls.’
    Mot. at 19 (citing 9 U.S.C. § 10(a)). By empowering federal courts to enforce arbitral awards
    “as an arbitration proceeding carried out under [the Federal Arbitration Act],” ERISA’s plain text
    might seem to comport with the Plan’s arguments. 29 U.S.C. § 1401(b)(3).
    But that’s not how courts have interpreted the statute. The Plan points to a single
    sentence in a 1984 D.C. Circuit case that merely restates the statute’s language. See Pls.’ Mot. at
    19 (citing Wash. Star Co. v. Int’l Typographical Union Negotiated Pension Plan, 
    729 F.2d 1502
    ,
    1505 (D.C. Cir. 1984) (“The court must enforce the arbitrator's decision in accordance with the
    United States Arbitration Act, 9 U.S.C. §§ 1–14, which authorizes only limited review.” (citing
    29 U.S.C. § 1401(b)(3)))). And subsequent D.C. Circuit opinions (as well as those from every
    other circuit to consider the issue) make clear that “the district court[s] also ha[ve] the duty of
    determining ‘whether applicable statutory law has correctly been applied and whether the
    findings comport with the evidence.’” Combs v. Classical Coal Corp., 
    931 F.2d 96
    , 102 (D.C.
    Cir. 1991) (quoting I.A.M. Nat'l Pension Fund Benefit Plan C v. Stockton TRI Indus., 
    727 F.2d 1204
    , 1207 n. 7 (D.C. Cir. 1984)); see also Pls.’ Mot. at 19 n.3 (collecting cases from other
    circuits). In fact, Combs dealt with the exact same question of reasonableness of actuarial
    9
    assumptions applied to withdrawal liability, and there was no question there that the district court
    had correctly reached the question (and overturned the award). 
    Combs, 931 F.2d at 102
    .
    Under that framework, the Court therefore reviews the two issues presented to the
    arbitrator, to the extent that they involve questions of law, de novo.
    Id. As to
    questions of fact,
    the arbitrator’s findings are presumed to be correct but are rebuttable by “a clear preponderance
    of the evidence.” 29 U.S.C. § 1401(c). And the ultimate question is whether Energy West can
    “show[ ] by a preponderance of the evidence that the determination [of withdrawal liability] was
    unreasonable or clearly erroneous.”
    Id. § 1401(a)(3)(A).
    III.    Analysis
    Energy West makes roughly the same arguments here that it made in arbitration. It first
    asserts that, as a matter of law, an actuary cannot select a withdrawal-liability discount rate that
    is different from a plan’s minimum-funding rate—at least not without a compelling justification.
    Def.’s Mot. at 7–13. Alternatively, Energy West argues that even if there is no legal requirement
    that the two rates be identical, Ruschau’s selection of the low PBGC rate was inconsistent with
    the statute either because it did not take the right factors into account or because the difference
    between the rates was so great as to make the selection altogether unreasonable.
    Id. at 13–16.
    Energy West also contends that the provision exempting certain plans from the 20-year cap on
    installment payments does not apply to the 1974 Plan as it exists today.
    Id. at 16–22.
    A.      Ruschau’s Actuarial Assumptions Were Not Unreasonable
    It is undisputed that, as of 2015, the Plan’s assets were less valuable than its liabilities—
    the future benefits promised to participating employees and their families. Liability Notice at
    J.A. 552. Therefore, if an employer like Energy West wished to withdraw from the Plan, the
    employer was required to contribute some amount of money to cover future unfunded liabilities
    10
    for its own employees whose benefits have vested and that the Plan will need to pay in the
    future. 29 U.S.C. § 1399.
    ERISA imposes detailed requirements for how to conduct an employer withdrawal and
    calculate the employer’s withdrawal liability. See
    id. §§ 1381–1405.
    It is the duty of the “plan
    sponsor” (here, the Plan’s joint board of trustees, see
    id. § 1301(a)(10)(A))
    to calculate the
    liability.
    Id. § 1382.
    As noted above, the Plan calculated Energy West’s withdrawal liability at
    $115,119,099.34. Liability Notice at J.A. 541. To get there, Ruschau, the Plan’s actuary,
    determined the employer’s proportional share of unfunded liabilities and assumed that Energy
    West’s contribution would grow at a rate of 2.71%–2.78%, the PBGC’s default rates for
    annuities.
    Id. at J.A.
    552. Energy West does not argue that the actuary miscalculated the
    proportions—that is, that it was responsible for roughly two percent of the Plan’s total unfunded
    vested benefits. It also agrees that Ruschau analyzed several appropriate factors when estimating
    the Plan’s future liabilities, such as “[r]etirement rates; termination rates; [the] percentage [of
    employees who are] married; spouse age difference; . . . mortality; [and] expenses.” William
    Ruschau Dep. 23:7–9, J.A. 429. The only issue is whether it was reasonable for Ruschau to have
    employed a withdrawal-liability discount rate (again, 2.71%–2.78%) that differed significantly
    from the Plan’s minimum-funding rate (7.5%). If Ruschau had used 7.5% for both numbers, as
    Energy West argues he was required to do, Energy West’s withdrawal liability would have been
    considerably smaller—somewhere in the neighborhood of $40 million, because assuming a
    higher rate of return requires a smaller contribution at the outset. Def.’s Mot. at 3.
    The difference turns on the assumptions Ruschau used in his calculations. To come up
    with the Plan’s anticipated performance rate for the purpose of assessing minimum-funding
    requirements, Ruschau took into account the Plan’s past performance, along with the various
    11
    factors listed above. See Ruschau Dep. 23:4–10, J.A. 429. But to get the withdrawal-liability
    discount rate, he selected “a reasonable risk[-]free interest rate that would be appropriate to settle
    the obligations.”
    Id. 24:6–8, J.A.
    429. That’s equivalent to buying “an annuity to fully settle up
    the plan’s obligations.”
    Id. 24:12–13, J.A.
    429. In other words, rather than use the Plan’s
    existing experiential data, Ruschau essentially looked at the market rate for an annuity to get a
    defined output—the amount needed to cover Energy West’s share of future benefit payments.
    Id. 24:4–25:10, J.A.
    429–30.
    The reasoning behind that methodology is simple. An employer that continues to
    participate in a plan must make contributions based on the number of hours its employees work
    in a given year, but if the plan’s investments do not achieve the expected rate of return because
    of a downturn in market conditions, the employer is obligated to make additional contributions to
    compensate for the funding shortfall.
    Id. 64:12–22, J.A.
    439. But withdrawing employers avoid
    that risk—once they’ve exited, their obligations remain the same no matter what happens in the
    market.
    Id. As a
    result, actuaries tend to adjust the discount rate down to account for the
    absence of future risk for the withdrawing employer.
    Id. Ruschau admitted
    that he did not factor
    in the Plan’s historical performance in setting the withdrawal-liability discount rate because that
    data would have no bearing on Energy West’s withdrawal from the Plan going forward. See
    id. at 21–30,
    J.A. 428–30. Ruschau instead chose the PBGC’s rates because its “interest
    assumptions were a reasonable proxy for risk[-]free interest rates.”
    Id. at 39:1–6,
    J.A. 433.
    Energy West makes two separate arguments that Ruschau’s actuarial assumptions were
    “unreasonable” as the term is used in the statute. First, it relies on a creative reading of two
    subsections of the statute and dicta in a Supreme Court opinion for the proposition that actuaries
    must use the same rates for both numbers as a matter of law, at least absent some justification for
    12
    the deviation. 2 See Def.’s Mot. at 7–13. Second, even if the rates need not be identical, it argues
    that the low discount rate for its withdrawal liability was unreasonable because it did not
    represent “the actuary’s best estimate” or “tak[e] into account the experience of the plan,”
    id. (quoting 29
    U.S.C. § 1393(a)(1)), but was rather a default PBGC rate. See Def.’s Mot. at 13–16.
    1.      The Rates Need Not Be Identical
    Energy West compares two nearly identical subsections in ERISA to argue that both
    subsections require the same results. See Def.’s Mot. at 7–13. It first looks to ERISA’s
    requirements for how to calculate an employer’s withdrawal liability—the provisions most
    directly relevant here—stating that actuaries should rely on
    actuarial assumptions and methods which, in the aggregate, are
    reasonable (taking into account the experience of the plan and
    reasonable expectations) and which, in combination, offer the
    actuary’s best estimate of anticipated experience under the plan . . . .
    29 U.S.C. § 1393(a)(1) (emphasis added). Following those guidelines, Ruschau selected the
    PBGC rates of 2.71%–2.78%. Ruschau Dep. 24:6–8, J.A. 429.
    Energy West then points to similar language in the ERISA provision that guides the
    actuary’s calculation of the Plan’s minimum-funding rate, which (again) determines whether
    participating employees must make excess contributions in any given year to maintain solvency.
    See Def.’s Mot. at 8 (citing 29 U.S.C. § 1084). That subsection states that
    [a]ctuarial assumptions must be reasonable. For purposes of this
    section, all costs, liabilities, rates of interest, and other factors under
    2
    Several statements in Energy West’s briefs suggest the argument that the law always requires
    the two rates to be identical. See, e.g., Def.’s Mot. at 9 (“In simple terms, the actuary is free to
    choose the discount rate assumption, but once chosen, must use the same rate consistently for
    both minimum funding and withdrawal liability purposes.” (emphasis added)). But Energy West
    hedged this argument at the hearing by stating that “you can have a difference, but the actuary
    has to justify why that difference is.” Tr. 5:4–5, ECF No. 39.
    13
    the plan shall be determined on the basis of actuarial assumptions
    and methods—
    (A) each of which is reasonable (taking into account the experience
    of the plan and reasonable expectations), and
    (B) which, in combination, offer the actuary’s best estimate of
    anticipated experience under the plan.
    29 U.S.C. § 1084(c)(3) (emphasis added). When calculating the minimum-funding rate under
    that guidance, actuaries must analyze plan performance to date, the investment portfolio, and
    various other factors affecting the Plan’s finances to determine how much money employers
    must contribute in the coming year.
    Id. It was
    this process that led Ruschau to project that the
    Plan’s investments would achieve a 7.5% rate of return during the 2014 and 2015 plan years.
    See 2015 Valuation at J.A. 565–66, 570, 613–19.
    The only textual difference between the two subsections is that each of the assumptions
    must be reasonable in the minimum-funding rate context, 29 U.S.C. § 1084(c)(3), while the
    assumptions must be reasonable in the aggregate to get the withdrawal-liability discount rate,
    id. § 1393(a)(1).
    If that’s the case, Energy West contends, shouldn’t the same input in both
    calculations yield the same output? See Def.’s Mot. at 8–9. And if that’s so, the argument goes,
    then the stark difference between Ruschau’s two rates must, as a matter of law, be incorrect.
    Id. At first
    glance, language in a Supreme Court opinion seems to support that contention. In
    Concrete Pipe, an employer attacked the entire statutory construct on due process grounds,
    arguing that submitting to arbitration under standards that were deferential to the plan deprived it
    of a fair hearing in the first 
    instance. 508 U.S. at 615
    . The Court rejected that argument because
    the employer got a fair shake in front of the arbitrator—the fact that the employer had the burden
    of proof to show that the calculations were unreasonable did not deprive it of due process.
    Id. at 635–36.
    As relevant here, the Court pointed to various statutory provisions, such as the actuary’s
    14
    calculation of the withdrawal-liability discount rate, to show that there were procedural checks in
    place to cabin the plan’s discretion in calculating the withdrawal liability at the outset.
    Id. at 631–33.
    The Court pointed out that not only is the actuary an independent professional governed
    by industry standards, but the actuary also has to pick interest rates that might benefit one party
    in some areas but hurt it in others, so there isn’t really an opportunity to rig the system in favor
    of the plan.
    Id. For instance,
    because the subsections governing minimum-funding and
    withdrawal-liability calculations employ nearly identical language, one might conclude that
    “[u]sing different assumptions for different purposes could very well be attacked as
    presumptively unreasonable both in arbitration and on judicial review, . . . because the use of
    assumptions overly favorable to the fund in one context will tend to have offsetting unfavorable
    consequences in other contexts.”
    Id. at 633
    (internal quotation omitted).
    Energy West seizes on that language. It points out that Ruschau selected two different
    rates even though the statutory subsections governing the selection of those rates are nearly
    identical. See Def.’s Mot. at 9–10. In its view, Ruschau’s calculations “cannot be the actuary’s
    best estimate because the actuary cannot have two best estimates of plan experience, one for
    minimum funding at 7.5% and one for withdrawal liability at the PBGC rates.”
    Id. at 10.
    Energy West argues that by selecting two separate rates, both of which are favorable to the Plan,
    Ruschau disregarded the checks that Congress included to ensure that the Plan’s assessments of
    liability would not unnecessarily burden employers.
    Id. But the
    very next sentence in the Supreme Court’s opinion dispels any notion that the two
    rates must be the same as a matter of law: “This point is not significantly blunted by the fact that
    the assumptions used by the Plan in its other calculations may be supplemented by several
    actuarial assumptions unique to withdrawal liability.” Concrete 
    Pipe, 508 U.S. at 633
    (internal
    15
    quotation omitted). The Court seems to have assumed that the discount rate for withdrawal
    liability could differ materially from the minimum-funding rate because the circumstances are
    different. The statutory text (as it exists today) bears that out, requiring only that the
    assumptions underlying the selection of withdrawal-liability discount rates be reasonable “in the
    aggregate.” 29 U.S.C. § 1393(a)(1). 3 That gives actuaries some room to maneuver. Concrete
    Pipe’s own use of permissive language reinforces that point. 
    See 508 U.S. at 633
    (“Using
    different assumptions . . . could very well be attacked . . . .” (emphasis added)).
    Energy West points to two other recent opinions it believes support its position, but
    neither does. In New York Times Company v. Newspaper and Mail Delivers’-Publishers’
    Pension Fund, the court vacated an arbitral award upholding the use of the “Segal Blend,” an
    actuarial method that blends a plan’s minimum-funding rate and PBGC annuity rates to compute
    the withdrawal-liability discount rate. 
    303 F. Supp. 3d 236
    , 251–56 (S.D.N.Y. 2018), appeals
    voluntarily dismissed, Nos. 18-1140, 18-1408 (2d Cir. Oct. 16, 2019). The employer there
    argued that, under Concrete Pipe, the two rates must be identical as a matter of law.
    Id. at 253–
    54. After a careful review of the Supreme Court’s statements in Concrete Pipe, Judge Sweet
    rejected that argument, concluding that Concrete Pipe’s language “does not mean . . . that
    deviation is, at all times, impermissible by law.”
    Id. at 254
    (citing Chicago Truck 
    Drivers, 698 F.3d at 355
    ). Likewise, in the other decision on which Energy West relies, the court not only
    rejected the employer’s argument that the two rates must be identical, it upheld the use of the
    3
    As Energy West notes, the language in the two subsections was identical when the Supreme
    Court decided Concrete Pipe. See Def.’s Mot. at 8 n.2. At that time, subsection 1084(c)(3) (then
    subsection 1082(c)(3)) also contained the “in the aggregate” language. See Concrete 
    Pipe, 508 U.S. at 632
    ; 29 U.S.C. § 1082(c)(3) (1988). Congress amended the subsection (and renumbered
    it) in 2006 to require each of the actuary’s assumptions in the minimum-funding context to be
    reasonable, removing the “aggregate” language. See Def.’s Mot. at 8 n.2; see also § 102(a), 120
    Stat. at 862. The amendment does not meaningfully affect the Court’s analysis here.
    16
    Segal Blend (which necessarily causes the two rates to diverge) as reasonable in that instance.
    See Manhattan Ford Lincoln, Inc. v. UAW Local 259 Pension Fund, 
    331 F. Supp. 3d 365
    , 386–
    93 (D.N.J. 2018), appeal voluntarily dismissed, No. 18-2709 (3d Cir. Oct. 9, 2018).
    In sum, nothing in ERISA’s text or in Concrete Pipe requires that the minimum-funding
    rate and withdrawal-liability discount rate be the same, and Energy West has pointed to no case
    in which a court came to the opposite conclusion. And to the extent that Energy West argues
    that an actuary must merely justify his choices, that argument is subsumed into the question of
    whether the actuary’s assumptions are reasonable.
    2.      The Weight of the Evidence Supports the Arbitrator’s Conclusions
    Because the two rates may deviate from one another, Energy West must demonstrate that
    Ruschau’s actuarial assumptions were unreasonable “in the aggregate” or did not “offer the
    actuary’s best estimate of anticipated experience under the plan.” 29 U.S.C. § 1393(a)(1).
    a.      Reasonable Assumptions
    To recap the evidence, the arbitrator reviewed Ruschau’s deposition testimony and took
    reports and heard testimony from two expert witnesses: Scott Hittner (for Energy West) and
    Ethan Kra (for the Plan). See generally Arb. Trs., J.A. 58–418. Kra testified that Ruschau’s
    methodology was appropriate, citing (1) the reasonableness of using risk-free annuity proxy rates
    in exchange for relieving an employer of any future risk, Kra’s Report ¶¶ 44–45, J.A. 484–85;
    (2) the use by many multiemployer plans of similar rates, Arb. Tr. Day 2 218:14–219:8, J.A.
    325–26; (3) the fact that no fund uses Hittner’s proposed method,
    id. 192:9–193:2, J.A.
    192–93;
    and (4) the perverse incentives that Hittner’s method would create for employers to withdraw as
    a plan neared insolvency, putting all liability on the last employer left in the room and permitting
    the others to depart without paying much of anything,
    id. 200:16–203:21, J.A.
    307–10.
    17
    Hittner, in contrast, criticized Ruschau’s methods, arguing that although there was no
    need for the two rates to be identical (contradicting Energy West’s argument discussed above),
    the PBGC rates were unreasonably low because the Plan is set to become insolvent in 2022.
    Arb. Tr. Day 1 76:7–77:12, J.A. 134–35. Hittner argued that Ruschau instead should have taken
    the fact of the Plan’s impending insolvency into account and assessed its creditworthiness
    accordingly, yielding a discount rate of 6.0%–6.5%. See Hittner’s Report ¶¶ 25–26, J.A. 532–
    33. But on cross-examination, Hittner admitted that Ruschau’s methodology comported with
    professional standards. Arb. Tr. Day 1 148:9–149:12, J.A. 206–07; see also ASOP No. 27, J.A.
    1266–1303. He also admitted that many other funds use similar methods, and he struggled to
    name funds that follow his method. Arb. Tr. Day 1 148:9–149:12, J.A. 206–07. Moreover,
    although he testified that the use of PBGC rates was “not the most appropriate” method, he
    acknowledged that it was “reasonable:”
    Q: Okay. When you say you agreed that it was not inappropriate
    for the plan’s actuary to follow [ASOP] guidance, would you agree
    that it was then not unreasonable for the actuary to follow this
    guidance?
    A: It was not unreasonable for the actuary to follow the guidance,
    but, again, the rates implicit in annuity prices I don’t think—in my
    view, are not the most appropriate basis for setting the discount rate.
    Id. 149:3–12, J.A.
    207 (emphasis added).
    Irvings’s award focused intently on the expert testimony. See Award at J.A. 49–53.
    Emphasizing the statutory burden of proof, which required Energy West to “show[] by a
    preponderance of the evidence that the [Plan’s] determination was unreasonable or clearly
    erroneous,” 29 U.S.C. § 1401(a)(3)(A), Irvings homed in on Hittner’s admissions of the
    reasonableness of Ruschau’s assumptions:
    While Hittner opined that it would have been more appropriate for
    Ruschau to increase the discount rate used to compute withdrawal
    18
    liability to account for the impending insolvency of the Plan, he
    acknowledged in sworn testimony that the assessment of withdrawal
    liability is a settlement of an employer’s pension obligations. He
    said it was proper for an actuary to select different interest[] rates,
    depending on the particular purpose. He stated that it was not
    inappropriate for Ruschau to have followed the guidance of ASOP
    No. 27 Section 3.9(b), which states that an actuary may use a
    discount rate implicit in annuity prices when measuring the present
    value of benefits for defeasance or settlement purposes. Hittner also
    confirmed that the PBGC rates are a reasonable proxy for annuity
    prices, and he never suggested Ruschau had misstated what the
    PBGC rates were at the time of Energy West’s withdrawal[-]liability
    calculation. Finally, while still insisting that a market[-]consistent
    measure would have been the more appropriate rate, Hittner
    ultimately conceded that “It was not unreasonable for the actuary
    to follow the [ASOP No. 27] guidance[ ]. . .[ .]” Given the statutory
    burden of proof, this conclusion by Energy West’s own expert is
    fatal to its claim.
    Award at J.A. 49–50. Irvings went on to point to various ERISA provisions that support the
    practice of using risk-free rates for withdrawal liability and to Kra’s undisputed expert testimony
    explaining why that practice is consistent with both ERISA and actuarial professional standards.
    Id. at 50–53.
    On judicial review of an arbitral award, ERISA creates a “presumption, rebuttable only
    by a clear preponderance of the evidence, that the findings of fact made by the arbitrator were
    correct.” 29 U.S.C. § 1401(c). Arbitrator Irvings determined, based largely on Hittner’s
    admission that Ruschau’s methods were reasonable, that the selection of the PBGC rates was
    permissible in this instance. Award at J.A. 49–50. To be sure, “[u]sing differing assumptions
    for different purposes could very well be attacked as presumptively unreasonable.” Concrete
    
    Pipe, 508 U.S. at 633
    (quotation and alterations omitted). But considering the evidence in the
    record, especially the fact that Energy West’s own expert conceded that Ruschau’s assumptions
    were reasonable in light of industry standards, the Court cannot conclude that Energy West has
    rebutted the presumption that Irvings’s findings were correct.
    19
    b.      The “Best Estimate” Test
    Once its own expert admitted that Ruschau’s method was reasonable, Energy West had to
    switch gears. Rather than attacking the use of PBGC rates as unreasonable per se, Energy West
    pointed to the rest of subsection 1393(a)(1), which requires not only that the assumptions and
    methods be reasonable “in the aggregate,” but also that they “tak[e] into account the experience
    of the plan and reasonable expectations” and “in combination, offer the actuary’s best estimate of
    anticipated experience under the plan.” 29 U.S.C. §1393(a)(1). Energy West argued (and
    renews the argument here) that the use of a default PBGC rate, by definition, cannot serve as the
    “actuary’s best estimate of anticipated experience under the plan,”
    id., because it
    pays no regard
    to the Plan’s unique characteristics and investment portfolio. Award at J.A. 34–35 (summarizing
    Energy West’s position); see also Def.’s Mot. at 13–15 (reiterating argument).
    A few months after the arbitration hearings but before Irvings issued his award, Judge
    Sweet issued his opinion in New York Times. See generally 
    303 F. Supp. 3d 236
    . In that case
    (which also reviewed one of Arbitrator Irvings’s decisions, see Award at J.A. 44), despite
    rejecting the employer’s argument that Concrete Pipe mandated identical minimum-funding and
    withdrawal-liability discount rates, the court nevertheless overturned Irvings’s conclusion that
    the actuary’s use of the Segal Blend method in that instance was reasonable. See N.Y. 
    Times, 303 F. Supp. 3d at 251
    –56. The fund there used a 7.5% minimum-funding rate of return, so the
    actuary blended it with the PBGC rates and calculated that the appropriate withdrawal-liability
    discount rate was 6.5% (nearly four percentage points higher than the rates at issue here).
    Id. at 255.
    After the arbitrator decided that using the Segal Blend was permitted, he did not further
    opine on whether it represented the actuary’s “best estimate” of the plan’s “anticipated
    experience,” as the statute requires.
    Id. The court
    reversed on that basis and remanded to the
    20
    arbitrator to consider the question in the first instance. 4
    Id. Energy West
    relied heavily on New
    York Times before the arbitrator, and in its briefs here, to support its position that the selection of
    PBGC rates, which do not take into account the Plan’s characteristics at all, is an even greater
    mistake than using the Segal Blend, which at least uses the Plan’s own minimum-funding rate as
    one of its primary inputs. Award at J.A. 41–42; Def.’s Mot. at 13–15.
    The Plan responds that New York Times is an outlier because every other case to have
    considered the issue (or related issues) has concluded that blended rates are reasonable so long as
    it was the actuary, not the plan’s trustees, who chose to use them. See Award at J.A. 42–43
    (summarizing the Plan’s position); see also Pls.’ Opp’n to Def.’s Mot. for Summ. J. to Vacate
    Arb. Award (“Pls.’ Opp’n”) at 16–18, 26, ECF No. 33. Indeed, several circuits have concluded
    that “the best estimate test is procedural, as opposed to substantive, in nature.” Vinson & Elkins
    v. Comm’r., 
    7 F.3d 1235
    , 1238 (5th Cir. 1993) (interpreting identical language in 26 U.S.C.
    § 412(c)(3)). That’s because ERISA and other statutes that use the phrase “refer[] to the
    actuary's best estimate, which implies a procedural approach. One goal of such an inquiry
    would be to determine whether assumptions truly came from the plan actuary or whether they
    were instead chosen by plan management for tax planning or cash flow purposes.”
    Id. (citing Huber
    v. Casablanca Indus., Inc., 
    916 F.2d 85
    , 93 (3d Cir. 1990)); see also Chicago Truck
    
    Drivers, 698 F.3d at 354
    –57 (upholding arbitrator’s decision to overturn withdrawal-liability
    determination because the plan “direct[ed the actuary] to switch from one method of estimating
    4
    Energy West argues that the New York Times court “found that the 1.0% deviation [between the
    minimum-funding and withdrawal-liability discount rates] was unreasonable and in violation of
    ERISA.” Def.’s Mot. at 12. But that’s not what the opinion says; the court merely held that the
    arbitrator failed to consider whether the deviation was reasonable, so the court could not uphold
    the 
    award. 303 F. Supp. 3d at 255
    –56. It did not reach the question of whether the deviation was
    ultimately correct.
    Id. 21 the
    interest rate to another [and then directed it to switch back, thus] compound[ing] the damage
    to [the employer], and also violat[ing] the ‘best estimate’ requirement, which exists to maintain
    the actuary’s independence.”); Citrus Valley Estates, Inc. v. Comm’r., 
    49 F.3d 1410
    , 1415 (9th
    Cir. 1995) (“plan funding decisions . . . must represent the actuary’s professional judgment, not
    the tax-motivated wishes of plan sponsors or administrators[,] . . . [and] plan actuaries must live
    up to national professional, ethical and technical standards which help to minimize the risk of
    untoward advice.”); Rhoades, McKee & Boer v. United States, 
    43 F.3d 1071
    , 1075 (6th Cir.
    1995) (“[T]he best estimate test is procedural only, and does not place a second substantive
    hurdle in the path of actuarial assumptions.”); Wachtell, Lipton, Rosen & Katz v. Comm’r, 
    26 F.3d 291
    , 295–96 (2d Cir. 1994) (upholding actuarial decision to choose conservative estimates
    in selecting funding rates and using the same rate across 41 different plans against IRS’s charge
    that actuary didn’t make specific findings as to each plan’s anticipated performance).
    Looking for an example in which a court has given substantive meaning to the “best
    estimate” language, Energy West cites National Retirement Fund v. Metz Culinary Management,
    Inc., which considered the question of whether an actuary’s modifications to prior assumptions
    can apply retroactively to modify withdrawal liabilities calculated months earlier. No. 16-CV-
    2408, 
    2017 WL 1157156
    (S.D.N.Y. Mar. 27, 2017). In Metz, the fund’s actuary calculated the
    2013 withdrawal-liability discount rate at 7.25%, effective December 31, 2012.
    Id. at *3.
    The
    fund then hired a new actuarial firm for plan year 2014, but it did not update its withdrawal rate
    as of December 31, 2013.
    Id. Metz, a
    participating employer, transmitted its intent to withdraw
    from the fund on May 16, 2014, with the understanding that, in the absence of any new rates, the
    fund would calculate Metz’s withdrawal liability using the previous year’s 7.25% rate.
    Id. at *4.
    The new actuary finally selected its plan year 2014 discount rate a few weeks after Metz
    22
    announced its withdrawal from the fund, abandoning the previous firm’s assumptions and
    choosing a PBGC rate of 3% for the first twenty years and 3.31% thereafter.
    Id. at *3.
    The fund
    calculated Metz’s withdrawal liability retroactively using the new rate, thereby increasing Metz’s
    withdrawal liability nearly fourfold over what it would have been under the old rate.
    Id. at *4.
    An arbitrator vacated the retroactive application of the lower discount rate and reinstated
    the earlier calculation, concluding that in the absence of a timely determination of the 2014
    discount rate, the previous assumptions remained valid and applied to any withdrawals that
    occurred before the fund modified its assumptions.
    Id. But the
    district court reversed, holding
    that because section 1393(a)(1) requires actuaries to use their “best estimate of anticipated
    experience under the plan,” the arbitrator was wrong to conclude that the fund should have used
    an old rate that did not take into account the fund’s experience during 2013.
    Id. at *6.
    In the
    district court’s view,
    to satisfy Section [1393], actuaries must take into account the full
    experience of the plan, develop reasonable expectations, and
    ultimately provide their best estimate of unfunded vested benefits in
    light of the plan’s experience and the actuary’s reasonable
    expectations. An actuary can only do so by incorporating data from
    the entirety of the most recent preceding plan year. In no universe
    is carrying over assumptions from a prior plan year
    without any examination or analysis as to their continued viability
    and reasonableness an actuary’s “best estimate.” Yet the Arbitrator
    concluded precisely that. An actuary may ultimately conclude that
    the prior plan year’s assumptions continue to be reasonable in light
    of all of the available data, but she must affirmatively reach that
    conclusion in order for the assumptions to qualify as such.
    Id. Moreover, the
    court found no evidence that the actuary who calculated the 2013 discount rate
    intended for it to apply in 2014 or that ERISA barred retroactive application of actuarial
    assumptions.
    Id. at *8–12.
    The court vacated the award.
    Id. at 13.
    From that language, Energy West argues that because the default PBGC rates Ruschau
    selected do not take into account the 1974 Pension Plan’s experience at all, the rates cannot meet
    23
    section 1393’s strict criteria. See Def.’s Mot. at 14–15. There are several problems with this
    argument. For one, Metz dealt with whether stale assumptions remain valid in the absence of a
    new determination—an issue that does not exist here, as there is no contention that the Plan
    failed to update its default-rate assumptions for plan year 2015. As well, the fund in Metz
    transitioned from a discount rate of 7.25% (likely near its minimum-funding rate) to a PBGC
    default rate that excluded the fund’s unique characteristics and experience—the exact move that
    Energy West protests here as improper under the statute but which the court there concluded was
    appropriate, or at least could be, in the right circumstances. See Metz, 
    2017 WL 1157156
    at *3.
    But perhaps most importantly, after briefing concluded here, the Second Circuit reversed
    the district court’s judgment. See Nat’l Retirement Fund v. Metz Culinary Mgmt., Inc., 
    946 F.3d 146
    (2d Cir. 2020). It found no reason to believe that section 1393 requires updated assumptions
    each year, and that “[a]bsent a change by a Fund’s actuary before the Measurement Date [in that
    case, December 31, 2013], the existing assumptions and methods remain in effect.”
    Id. at 151.
    Were it otherwise, the selection of an interest rate assumption after
    the Measurement Date would create significant opportunity for
    manipulation and bias. Nothing would prevent trustees from
    attempting to pressure actuaries to assess greater withdrawal
    liability on recently withdrawn employers . . . . Actuaries unwilling
    to yield to trustees’ preferred interest rate assumptions can be
    replaced by others less reticent.
    Id. That result
    comports with the holdings of the Second Circuit and other courts that have
    interpreted section 1393’s language about the “actuary’s best estimate” as being procedural
    rather than substantive in nature. Unlike in Metz, Energy West does not contend that Ruschau
    failed to make an affirmative decision about the assumptions he thought proper to use, nor that
    the 1974 Pension Plan’s trustees improperly influenced Ruschau or deprived him of his
    professional independence. Energy West therefore cannot rely on the statute’s “best estimate”
    24
    test to assail Ruschau’s selection of the discount rate. And unlike in New York Times, where
    there was no evidence in the arbitral record about whether the divergence between the minimum-
    funding rate and the PBGC rate was either the actuary’s best estimate or whether it was
    reasonable, 
    see 303 F. Supp. 3d at 255
    –56, here there is ample evidence supporting Arbitrator
    Irvings’s reasoned consideration of both issues.
    To be sure, the huge gap that results from Ruschau’s choice of such different discount
    rates does give the Court some pause. Many cases with similar legal issues involve either
    smaller differences between the two rates or much smaller differences between the withdrawal-
    liability calculations, at least in absolute terms. For example, in Metz, the potential withdrawal
    liabilities were approximately $250,000 and just under $1,000,000, respectively. 
    2017 WL 1157156
    at *4. In Manhattan Ford Lincoln, the possible liabilities were either $0 or $2.55
    
    million. 331 F. Supp. 3d at 372
    –75. And in New York Times, the dispute was over whether to
    use the 7.5% minimum-funding rate or the 6.5% Segal-Blended 
    rate. 303 F. Supp. 3d at 251
    .
    Here, in contrast, the use of low PBGC rates (2.71%–2.78%) results in a difference of
    nearly five percentage points, see Def.’s Mot. at 12–13, and because the discount rate is the
    single most influential factor affecting the calculation of withdrawal liability, the absolute
    difference is about $75 million. See
    id. at 3.
    5 Nevertheless, the record before the arbitrator
    supports his conclusion that Ruschau’s methods comported with professional guidelines, that his
    assumptions were reasonable in the aggregate, and that his calculations represented his own best
    5
    The Court also notes that in Metz, the Second Circuit discussed the fund’s shift from using the
    minimum-funding rate to using PBGC default rates and expressed concern that such a move was
    exactly the sort of event that Concrete Pipe warned might be “presumptively 
    unreasonable.” 946 F.3d at 151
    –52 (quoting Concrete 
    Pipe, 508 U.S. at 632
    –33). But unlike in Metz, because there
    is no evidence that the Plan’s trustees exerted undue influence on Ruschau by pressuring him to
    apply a low rate to Energy West’s withdrawal, see Award at J.A. 53–54, Concrete Pipe does not
    compel the Court to reverse the award here.
    25
    estimate, free from undue interference by interested parties. The Court therefore cannot overturn
    Arbitrator Irvings’s judgment under 29 U.S.C. § 1393.
    B.       The 1974 Plan is Not Subject to the 20-Year Cap on Installment Payments
    In an effort to curb excessive withdrawal penalties, Congress permitted withdrawing
    employers to pay either an up-front lump sum or installments roughly equal to what the
    employer was paying monthly while participating in the plan. See 29 U.S.C. § 1399(c)(1)(C).
    Moreover, the statute limits the payment of installments to twenty years—the employer is
    released from its obligations thereafter, regardless of its remaining balance.
    Id. § 1399(c)(1)(B).
    If that provision applied here, then Energy West would end up paying only about $59.3 million
    over twenty years. But in response to extraordinarily targeted lobbying, Congress created a
    carve-out that exempts a single multiemployer plan from nearly every general provision designed
    to limit employers’ liability, including the 20-year cap. The Plan argues, and Arbitrator Irvings
    agreed, that this carve-out applies to it.
    This issue arises out of the unique history of labor relations in the coal industry. When a
    post-War breakdown in collective bargaining between the union and mining companies
    threatened to bring about a nationwide strike, President Truman seized control of all mines and
    directed the Secretary of the Interior to broker a deal. See E. Enters. v. Apfel, 
    524 U.S. 498
    , 504–
    05 (1998) (citing Exec. Order 9728, 11 Fed. Reg. 5,593 (May 23, 1946)). Among other benefits
    for coal miners, the agreement led to the creation of the UMWA Welfare and Retirement Plan of
    1950 (“UMWA 1950 W&R Plan”). See
    id. at 506.
    Congress included a provision in the Internal
    Revenue Code of 1954 carving out certain tax deductions for any plan that was “established prior
    to January 1, 1954, as a result of an agreement between employee representatives and the
    Government of the United States during a period of Government operation, under seizure
    powers, of a major part of the productive facilities of the industry in which such employer is
    26
    engaged.” Pub. L. No. 83-591, § 404(c)(2), 68A Stat. 1, 141–42 (1954) (codified at 26 U.S.C.
    § 404(c)(2) (1958)). Only one plan then in existence fit that description: the UMWA 1950
    W&R Plan. The same language remains today. See 26 U.S.C. § 404(c)(2) (2018).
    After Congress passed ERISA in 1974, the unions and the employers split the UWMA
    1950 W&R Plan into four separate parts: the 1950 Pension Plan, the 1974 Pension Plan, the
    1950 Benefit Plan, and the 1974 Benefit Plan. E. 
    Enters., 524 U.S. at 509
    . Miners who retired
    prior to 1976 fell into the 1950 plans, while miners who were still active as of January 1, 1976
    (or who entered the industry thereafter) were covered by the 1974 plans.
    Id. But because
    the
    plans were already underfunded within a few years of the split, the unions and employers jointly
    lobbied Congress (as part of the 1980 Multiemployer Pension Plan Amendments Act) to exclude
    the plans from certain provisions otherwise included in ERISA, including the 20-year cap. See
    Award at J.A. 6. Among those exclusions, Congress included the following language:
    (1) The method of calculating an employer’s allocable share
    of unfunded vested benefits set forth in subsection (c)(3) shall be the
    method for calculating an employer’s allocable share of unfunded
    vested benefits under a plan to which section 404(c) of title 26, or a
    continuation of such a plan, applies, unless the plan is amended to
    adopt another method authorized under subsection (b) or (c).
    (2) Sections 1384, 1389, 1399(c)(1)(B), and 1405 of this title shall
    not apply with respect to the withdrawal of an employer from a plan
    described in paragraph (1) unless the plan is amended to provide that
    any of such sections apply.
    29 U.S.C. § 1391(d) (emphasis added). The 20-year cap on installment payments contained in
    subsection 1399(c)(1)(B) thus does not apply in the event of an employer’s withdrawal from “a
    plan to which section 404(c) of title 26, or a continuation of such a plan, applies.”
    Id. (emphasis added).
    As described above, 26 U.S.C. § 404(c) only applies to one plan that was ever in
    existence, the UMWA 1950 W&R Plan. The question, therefore, is how to interpret the second
    clause in the quoted phrase: what constitutes “a continuation” of the 1950 W&R Plan?
    Id. 27 Beyond
    the statute’s text, there are only a few other authorities that give clues as to how
    to answer that question. Arbitrator Irvings first looked to the text of the 1974 collective
    bargaining agreement that split the 1950 W&R Plan into four separate benefit and pension plans
    (and subsequent amendments)—that agreement “expressly provided that the 1950 Pension Plan
    and the 1974 Pension Plan are a continuation of the 1950 W&R Fund.” Award at J.A. 5; see also
    Amendments to UMWA 1974 Pension Trust Articles of Incorporation (Dec. 31, 2012), J.A. 804
    (“The 1974 Pension Plan and Trust is a continuation of the benefit program established under the
    UMWA Welfare and Retirement Fund of 1950 . . . .”).
    Irvings also looked to the IRS’s own determination. See Award at J.A. 5–6. Shortly after
    the employers and unions agreed to split up the UMWA 1950 W&R Plan, they asked the IRS for
    a determination as to whether the government would continue to treat the successor plans as it
    had the 1950 W&R Plan for tax purposes.
    Id. The IRS
    responded “that the 1950 Pension Plan
    and Trust[] and the 1974 Pension Plan and Trust represent a continuation of the [1950 W&R
    Plan] and therefore constitute a plan described in section 404(c) of the [Tax] Code.” Award at
    J.A. 6 (quoting IRS Determination Ltr. of Jun. 9, 1975, J.A. 1115–19).
    Third, Irvings discussed the four known judicial decisions that have had occasion to
    consider whether the 1974 Pension Plan is a continuation of the 1950 W&R Plan—all four
    opinions support the conclusion that it is. See Award at 7–9. In Combs v. Adkins & Adkins Coal
    Co., Inc., 
    597 F. Supp. 122
    , 127–28 (D.D.C. 1984), the Court considered whether a withdrawing
    employer should have its liability reduced under the de minimis rule in 29 U.S.C. § 1389(a)(2).
    Id. It concluded
    that the employer could not take advantage of the rule because subsection
    1391(d) states that the rule does not apply to continuations of plans listed in 26 U.S.C. § 404(c)
    and that the 1974 Plan is such a continuation.
    Id. (citing Short
    v. United Mineworkers of Am.
    28
    1950 Pension Tr., 
    728 F.2d 528
    , 531 (D.C. Cir. 1984)). In Calvert & Youngblood Coal
    Company v. UMWA 1950 Pension Trust, a court concluded that a withdrawing employer was not
    eligible for liability limitations contained in 29 U.S.C. § 1405, which again are exempted for
    continuations of section 404(c) plans under § 1391(d). No. CV 82-P-1070-S, 
    1985 WL 9436
    , at
    *4–5 (N.D. Ala. Feb. 7, 1985). Later that year, the court reached the same conclusion in Combs
    v. Western Coal Corp., 
    611 F. Supp. 917
    , 922 (D.D.C. 1985) (citing 
    Combs, 597 F. Supp. at 128
    ). Finally, in Spring Branch Mining Company, Inc. v. UMWA 1950 Pension Trust & 1950
    Pension Plan, a court upheld the constitutionality of exempting the 1950 and 1974 Plans from
    many of the employer-friendly liability limitations, briefly commenting on the relationship
    between the 1950 W&R Plan and the continuation plans under section 404(c). 
    691 F. Supp. 973
    ,
    986 & n.5 (S.D. W.Va. 1987). No court seems to have reached a contrary conclusion.
    Fourth, Irvings looked to a later statute that used the same terms. See Award at J.A. 9.
    The Coal Industry Retiree Health Benefit Act of 1992 (“the Coal Act”), which created health
    benefits for coal workers, defined the term “1974 UMWA Pension Plan” as “a pension plan
    described in section 404(c) (or a continuation thereof), participation in which is substantially
    limited to individuals who retired in 1976 and thereafter.”
    Id. (quoting Pub.
    L. No. 102-486, Tit.
    XIX, Subtit. C, § 9701(a)(3), 106 Stat. 2776, 3038 (1992) (codified at 26 U.S.C. § 9701(a)(3)).
    Energy West attempted before the arbitrator to downplay the relevance of those
    authorities by positing a novel theory of how to interpret section 1391(d)’s carve-outs as they
    apply today—and it renews that same argument here. See Award at J.A. 36–37; Def.’s Mot. at
    16–22. Energy West’s argument is hardly clear, but it appears first to argue that section 404(c)
    has its own carve-out.
    Id. As stated
    above, Congress included section 404 when it passed the
    29
    Internal Revenue Code of 1954, creating special tax treatment for the 1950 W&R Plan. § 404(c),
    68A Stat. at 141–42. The full text of the subsection, as it stood then, read:
    (c) Certain negotiated plans.
    If contributions are paid by an employer—
    (1) under a plan under which such contributions are held in trust for
    the purpose of paying (either from principal or income or both) for
    the benefit of employees and their families and dependents at least
    medical or hospital care, and pensions on retirement or death
    of employees; and
    (2) such plan was established prior to January 1, 1954, as a result
    of an agreement between employee representatives and the
    Government of the United States during a period of Government
    operation, under seizure powers, of a major part of the productive
    facilities of the industry in which such employer is engaged,
    such contributions shall not be deductible under this section nor be
    made nondeductible by this section, but the deductibility thereof
    shall be governed solely by section 162 (relating to trade or business
    expenses). This subsection shall have no application with respect
    to amounts contributed to a trust on or after any date on which such
    trust is qualified for exemption from tax under section 501(a).
    26 U.S.C. § 404(c) (1958) (emphasis added). When Congress amended the section in 1974 as
    part of ERISA, it struck the italicized sentence above and appended the following language at the
    end of the subsection:
    For purposes of this chapter and subtitle B, in the case of any
    individual who before July 1, 1974, was a participant in a plan
    described in the preceding sentence—
    (A) such individual, if he is or was an employee within the meaning
    of section 401(c)(1), shall be treated (with respect to service covered
    by the plan) as being an employee other than an employee within
    the meaning of section 401(c)(1) and as being an employee of a
    participating employer under the plan,
    (B) earnings derived from service covered by the plan shall be
    treated as not being earned income within the meaning of section
    401(c)(2), and
    30
    (C) such individual shall be treated as an employee of a
    participating employer under the plan with respect to service
    before July 1, 1975, covered by the plan.
    Section 277 (relating to deductions incurred by certain membership
    organizations in transactions with members) does not apply to any
    trust described in this subsection. The first and third sentences of
    this subsection shall have no application with respect to amounts
    contributed to a trust on or after any date on which such trust is
    qualified for exemption from tax under section 501(a).
    ERISA, Pub. L. No. 93-406, § 2008(A), 88 Stat. 829, 993–94 (1974) (emphasis added).
    According to Energy West, the italicized sentence at the end of the 1974 amendment
    indicates that the subsection’s first sentence, which provides special tax rules that only ever
    applied to the 1950 Plan, was supposed to be temporary because it stops applying once a “trust is
    qualified for exemption from tax under section 501(a).” Def.’s Mot. at 19. Energy West
    supports this reading by looking to the legislative history, which contains indications that the
    1974 Pension Plan intended to qualify for a tax exemption as soon as possible. See
    id. (quoting H.R.
    Rep. No. 93-779, at 166 (1974), J.A. 1356 (“Since the desire of the United Mine Workers is
    to establish the pension plan as a qualified plan under section 401(a), the bill provides that
    section 404(c) is not to apply to the pension plan once it becomes a qualified plan except for the
    purpose of determining which individuals are to be treated as employees of a participating
    employer under the plan.”).
    Sure enough, the 1974 Plan qualified for tax exemption under sections 401(a) and 501(a)
    in 1976. See IRS Determination Ltr. of Apr. 6, 1975, J.A. 1113. By Energy West’s account,
    therefore, once the 1974 Plan qualified under subsection 501(a), it no longer fell within the scope
    of section 404(c) and was therefore no longer a “continuation” of the 1950 W&R Plan. See
    Def.’s Mot. at 19–22. Therefore, Energy West appears to contend (although again its argument
    is difficult to discern) that the ERISA carveouts do not apply to the 1974 Plan as it exists today,
    31
    so the 20-year cap on installment payments contained in 29 U.S.C. § 1399(b)(1)(C) limits
    Energy West’s withdrawal liability.
    Id. It thereby
    attempts to distinguish the text of the 1974
    collective bargaining agreement (and all subsequent amendments), the IRS’s 1975 determination
    letter, the cases from the 1980s, and the definition from the 1992 Coal Act as outdated authorities
    that had no reason to consider whether section 404(c) still applied to the 1974 Plan.
    Id. Arbitrator Irvings
    rejected this argument—and for good reason. See Award at J.A. 54–
    56. Whether the 1974 Plan is subject to the tax provisions laid out in section 404(c) has nothing
    to do with whether it remains a “continuation of” a plan described in that subsection, namely the
    1950 W&R Plan. Indeed, the “continuation” language does not itself appear in section 404(c),
    which on its face applies only to the 1950 W&R Plan—a pension plan that no longer exists in its
    own right. In fact, that language first appeared in legislation Congress passed after the 1974
    Pension Plan qualified for tax exemptions under 26 U.S.C. §§ 401 and 501. Congress only
    added subsection 1391’s “continuation” language in 1980 as part of the Multiemployer Pension
    Plan Amendments Act. See 94 Stat. at 1232. With those considerations in mind, the references
    in ERISA have nothing to do with tax; they seem to use the phrase “a plan described in § 404(c),
    or a continuation thereof” as shorthand to refer to all coal mining pension plans, to which they
    deny various non-tax benefits like the 20-year cap at issue here. 29 U.S.C. §§ 1391(d),
    1399(c)(1)(B). As the Plan points out, if Congress had meant in 1980 to refer only to plans that
    were still subject to tax consideration under section 404(c), it would have been referring to a null
    set: the 1950 W&R Plan no longer existed by then, and the 1950 and 1974 Pension Plans had
    qualified for new tax characterizations. See Tr. 28:1–24. That seems unlikely (if not an
    inappropriate method of statutory interpretation).
    32
    Using the “continuation” language to refer to all coal pension plans also fits with the
    definition contained in the Coal Act, which clearly refers to the 1974 UMWA Pension Plan as “a
    pension plan described in section 404(c) (or a continuation thereof).” 26 U.S.C. § 9701(a)(3).
    To be sure, as Energy West argues, the substantive provisions of the Coal Act, which have to do
    with health benefits for miners, do not govern the issues here. See Def.’s Reply Mem. in Supp.
    of Energy West Mining Co.’s Mot. for Summ. J. (“Def.’s Reply”) at 19–20, ECF No. 31. But
    the use of the same “continuation” language in legislation passed more than a decade after the
    1974 Plan transitioned to a new tax status is further evidence that Congress used the phrase to
    refer to a closed set of multiemployer pension plans that includes the 1974 Plan.
    Energy West attempts to dismiss the language’s inclusion in the definition section as a
    one-off mistake that “was not carefully considered.”
    Id. But while
    these Motions were pending,
    Congress incorporated the Coal Act’s definition (codified at 26 U.S.C. § 9701(a)(3)) and
    renewed its usage of the “continuation” language in new legislation:
    (H) 1974 UMWA PENSION PLAN DEFINED.—For purposes of
    this paragraph, the term ‘1974 UMWA Pension Plan’ has the
    meaning given the term in section 9701(a)(3) of the Internal
    Revenue Code of 1986, but without regard to the limitation on
    participation to individuals who retired in 1976 and thereafter.
    Bipartisan Am. Miners Act of 2019, Pub. L. No. 116-94, div. M, § 102(H), 133 Stat. 2534, 3094
    (2019) (to be codified at 30 U.S.C. § 1232). Any effort to distinguish the Coal Act’s definition
    as outdated or as sloppy draftsmanship, see Def.’s Reply at 19–20, is thus unconvincing.
    Energy West’s remaining arguments are unavailing. It contends that the statutory
    provisions were the result of targeted lobbying in the 1970s to address concerns the coal industry
    and unions had then but that do not apply now. See Def.’s Mot. at 20. But that’s a policy
    argument, suggesting that the Court should read certain union-friendly provisions out of the
    United States Code because economic conditions have changed since those provisions became
    33
    law. Energy West may make that argument to Congress, but the Court has no authority to amend
    the law on Energy West’s behalf. Energy West also points out that the IRS determination letter
    confirming that the 1974 Plan is a continuation of the 1950 Plan is now 45 years old and that the
    Plan has never asked for a new determination (likely because the one it has in hand is favorable
    to it).
    Id. at 21–22.
    But as noted above, the Plan’s current tax status is irrelevant to whether it
    falls within ERISA’s provisions creating special rules for the coal industry.
    Arbitrator Irvings correctly held that the 1974 Pension Plan is a “continuation of” the
    1950 W&R Plan for the purposes of 29 U.S.C. § 1391(d). Therefore, Energy West is ineligible
    for the 20-year cap on withdrawal contributions under subsection 1399(c)(1)(B).
    IV.   Conclusion
    Energy West has not demonstrated that Ruschau’s actuarial assumptions and methods
    were unreasonable under ERISA’s provisions governing the calculation of Energy West’s
    withdrawal liability from the 1974 Pension Plan. Energy West’s own expert admitted as much.
    And because there were no allegations that the Plan’s trustees exerted improper influence on the
    actuary, the evidence supports Irvings’s finding that the calculation was the actuary’s best
    estimate of the Plan’s experience and performance. Finally, Arbitrator Irvings correctly found
    that Energy West in ineligible for a statutory cap on the number of installment payments it owes
    to satisfy its liability. Accordingly, it is
    ORDERED that Energy West’s Motion for Summary Judgment is DENIED and the
    Plan’s Motion for Summary Judgment is GRANTED. An order will be released
    contemporaneously with this Memorandum Opinion.
    DATE: May 22, 2020
    CARL J. NICHOLS
    United States District Judge
    34