Western States Office Fund v. Wpas ( 2022 )


Menu:
  •                 FOR PUBLICATION
    UNITED STATES COURT OF APPEALS
    FOR THE NINTH CIRCUIT
    BOARD OF TRUSTEES OF THE                 No. 20-35545
    WESTERN STATES OFFICE AND
    PROFESSIONAL EMPLOYEES PENSION              D.C. No.
    FUND,                                    3:19-cv-00811-
    Plaintiff-Appellant,            SB
    v.
    OPINION
    WELFARE & PENSION
    ADMINISTRATION SERVICE, INC.,
    Defendant-Appellee.
    Appeal from the United States District Court
    for the District of Oregon
    Stacie F. Beckerman, Magistrate Judge, Presiding
    Argued and Submitted October 5, 2021
    Portland, Oregon
    Filed January 31, 2022
    Before: William A. Fletcher, Sandra S. Ikuta, and
    Daniel A. Bress, Circuit Judges.
    Opinion by Judge Ikuta
    2          WESTERN STATES OFFICE FUND V. WPAS
    SUMMARY*
    ERISA
    The panel affirmed the district court’s summary judgment
    in favor of the defendant in an ERISA action brought by a
    multiemployer pension plan, seeking a recalculation of
    defendant’s annual withdrawal liability payments following
    its withdrawal from the plan.
    When an employer withdraws from a multiemployer
    pension plan, it is required to pay for its share of unfunded
    benefits. That share, called withdrawal liability, may be paid
    in annual installments, calculated in part based on the
    “highest contribution rate” the employer was required to pay
    into the plan during a specified time period. In addition,
    when a multiemployer plan is underfunded and in critical
    status, the employer must pay a surcharge of five or ten
    percent of the total amount of contributions the employer was
    required to make to the plan each year.
    The panel held that, for purposes of determining an
    employer’s annual withdrawal payment, a surcharge paid by
    the employer when a plan is in critical status is not included
    in the calculation of the “highest contribution rate.”
    *
    This summary constitutes no part of the opinion of the court. It has
    been prepared by court staff for the convenience of the reader.
    WESTERN STATES OFFICE FUND V. WPAS                  3
    COUNSEL
    Robert B. Miller, Kilmer Voorhees & Laurick PC, Portland,
    Oregon, for Plaintiff-Appellant.
    Jeremy E. Roller, Arete Law Group PLLC, Seattle,
    Washington, for Defendant-Appellee.
    OPINION
    IKUTA, Circuit Judge:
    Under Employee Retirement Income Security Act of 1974
    (ERISA), 
    29 U.S.C. § 1001
    –1461, when an employer
    withdraws from a multiemployer pension plan, the employer
    is required to pay for its share of unfunded benefits.
    
    29 U.S.C. § 1381
    . That share of unfunded benefits is called
    “withdrawal liability,” see 
    id.,
     and can be paid in annual
    installments, see 
    id.
     § 1399(c)(1)(A)(i). The calculation of
    the employer’s annual withdrawal payments is based in part
    on the “highest contribution rate” the employer was required
    to pay into the plan during a specified time period. Id.
    § 1399(c)(1)(C)(i)(II). Such a contribution rate is usually
    stated as dollars per compensable employee hour. A different
    section of ERISA provides that when a multiemployer plan
    is underfunded and in critical status, the employer is required
    to pay a surcharge of five or ten percent of the total amount
    of contributions the employer was required to make to the
    plan each year. Id. § 1085(e)(7)(A).
    This appeal raises the question whether a surcharge paid
    by an employer when a plan is in critical status is included in
    the calculation of the “highest contribution rate” for purposes
    4        WESTERN STATES OFFICE FUND V. WPAS
    of determining the employer’s annual withdrawal payment.
    We hold it is not, and affirm the judgment of the district
    court.
    I
    This case involves an issue of statutory interpretation. An
    explanation of the relevant statutory framework is necessary
    to understand the parties’ arguments.
    In 1974, Congress enacted ERISA to “mak[e] sure that if
    a worker has been promised a defined pension benefit upon
    retirement—and if he has fulfilled whatever conditions are
    required to obtain a vested benefit—he actually will receive
    it.” Nachman Corp. v. Pension Ben. Guar. Corp., 
    446 U.S. 359
    , 375 (1980). To this end, “ERISA required employers to
    make contributions that would produce pension plan assets
    sufficient to meet future vested pension liabilities; it
    mandated termination insurance to protect workers against a
    plan's bankruptcy; and, if a plan became insolvent, it held any
    employer who had withdrawn from the plan during the
    previous five years liable for a fair share of the plan's
    underfunding.” Milwaukee Brewery Workers' Pension Plan
    v. Joseph Schlitz Brewing Co., 
    513 U.S. 414
    , 416 (1995).
    In a multiemployer pension plan (i.e., a plan created
    through an agreement among multiple employers and one or
    more unions), “[t]he 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 Cal., Inc. v. Constr.
    Laborers Pension Tr. for S. Cal., 
    508 U.S. 602
    , 605 (1993).
    Multiemployer pension plans “provide the participating
    employers with such labor market benefits as the opportunity
    WESTERN STATES OFFICE FUND V. WPAS                  5
    to offer a pension program (a significant part of the covered
    employees’ compensation package) with cost and risk-sharing
    mechanisms advantageous to the employer.” 
    Id. at 606
    .
    Multiemployer pension plans also give rise to distinctive
    risks. As ERISA was originally enacted, “the possibility of
    liability upon termination of a plan created an incentive for
    employers to withdraw from weak multiemployer plans.” 
    Id.
    at 608 (citing Connolly v. Pension Benefit Guar. Corp.,
    
    475 U.S. 211
    , 215 (1986)). When an employer withdrew
    from a plan before fully funding the benefits owed to its
    employees, the remaining employers were required to absorb
    the cost. See Connolly, 
    475 U.S. at 216
     (citation omitted).
    “[T]his scheme encouraged an employer to withdraw from a
    financially shaky plan and risk paying its share if the plan
    later became insolvent, rather than to remain and (if others
    withdrew) risk having to bear alone the entire cost of keeping
    the shaky plan afloat.” Milwaukee Brewery, 
    513 U.S. at
    416–17. After one employer withdrew, the remaining
    employers had an increased incentive to withdraw as well,
    further imperiling the plan in a “vicious downward spiral.”
    Connolly, 
    475 U.S. at 216
     (citation omitted). In light of this
    risk, “a plan’s financial troubles could trigger a stampede for
    the exit doors, thereby ensuring the plan’s demise.”
    Milwaukee Brewery, 
    513 U.S. at 417
    .
    In 1980, Congress addressed this problem by amending
    ERISA to hold employers withdrawing from a multiemployer
    pension plan liable for their share of unfunded benefits. See
    Multiemployer Pension Plan Amendments Act (“MPPAA”),
    
    29 U.S.C. §§ 1381
    –1461. Under the MPPAA, when an
    employer withdraws from a multiemployer pension plan, “the
    employer is liable to the plan in the amount determined under
    [the amendments] to be the withdrawal liability.” 29 U.S.C.
    6            WESTERN STATES OFFICE FUND V. WPAS
    § 1381(a). In imposing this liability for the employer’s share
    of unfunded benefits, Congress sought “to discourage
    withdrawals ex ante and cushion their impact ex post.” Bay
    Area Laundry & Dry Cleaning Pension Tr. Fund v. Ferbar
    Corp. of Cal., Inc., 
    522 U.S. 192
    , 201 (1997).
    An employer’s withdrawal liability is “the allocable
    amount of unfunded vested benefits” subject to various
    adjustments as determined by a complex formula. 
    29 U.S.C. § 1381
    (b). An employer can satisfy its withdrawal liability
    by either paying a single lump sum or making a series of
    annual payments over a specified amortization period. See 
    id.
    § 1399(c)(1)(A)(i).
    If the employer chooses to pay on an annual basis, the
    amount of each annual payment is determined by a different
    formula. The annual withdrawal payment amount is the
    product of: (1) the “average annual number of contribution
    base units for the period of 3 consecutive plan years [during
    the 10 plan years preceding the employer’s withdrawal] in
    which the number of contribution base units for which the
    employer had an obligation to contribute under the plan is the
    highest”; and (2) the “highest contribution rate at which the
    employer had an obligation to contribute under the plan
    during the 10 plan years” preceding the employer’s
    withdrawal. Id. § 1399(c)(1)(C)(i).1 A “contribution base
    1
    
    29 U.S.C. § 1399
    (c)(1)(C)(i) states:
    Except as provided in subparagraph (E), the amount of
    each annual payment shall be the product of—
    (I) the average annual number of contribution base
    units for the period of 3 consecutive plan years,
    during the period of 10 consecutive plan years
    WESTERN STATES OFFICE FUND V. WPAS                         7
    unit” is defined as “a unit with respect to which an employer
    has an obligation to contribute under a multiemployer plan.”
    
    Id.
     § 1301(a)(11). “For example, an employer’s contribution
    under a collective bargaining agreement may be based on a
    participant’s hours of covered work.”2             When the
    amortization period exceeds twenty years, the employer
    satisfies its withdrawal liability by making the first twenty
    annual payments. See 
    29 U.S.C. § 1399
    (c)(1)(B).
    After addressing the problem of employer withdrawal by
    enacting the MPPAA, Congress subsequently enacted the
    Pension Protection Act of 2006 (“PPA”), 
    29 U.S.C. § 1085
    ,
    to tackle the problem of helping “severely underfunded
    multiemployer pension plans recover,” Lehman v. Nelson,
    
    862 F.3d 1203
    , 1207 (9th Cir. 2017). This amendment to
    ERISA “requires plan actuaries for multiemployer plans to
    annually certify ‘whether or not the plan is or will be in
    ending before the plan year in which the
    withdrawal occurs, in which the number of
    contribution base units for which the employer had
    an obligation to contribute under the plan is the
    highest, and
    (II) the highest contribution rate at which the
    employer had an obligation to contribute under the
    plan during the 10 plan years ending with the plan
    year in which the withdrawal occurs.
    For purposes of the preceding sentence, a partial
    withdrawal described in section 1385(a)(1) of this title
    shall be deemed to occur on the last day of the first year
    of the 3-year testing period described in section
    1385(b)(1)(B)(i) of this title.
    2
    Glossary, Pension Benefit Guaranty Corporation (last updated
    Sept. 21, 2021), https://www.pbgc.gov/glossary.
    8        WESTERN STATES OFFICE FUND V. WPAS
    critical status for such plan year or for any of the succeeding
    5 plan years’ within ninety days of the start of the plan year.”
    
    Id.
     (quoting 
    29 U.S.C. § 1085
    (b)(3)(A)(i)). A multiemployer
    pension plan is in “critical status” if it is less than 65 percent
    funded and meets certain other criteria. 
    29 U.S.C. § 1085
    (b)(2)(A). When a plan is in critical status, each
    employer who is “otherwise obligated to make contributions
    for the initial critical year” must pay a surcharge into the
    plan, calculated as a percentage of the employer’s
    contributions required under a Collective Bargaining
    Agreement (“CBA”) or other agreement. 
    Id.
     § 1085(e)(7)(A).
    During the first year of critical status, the surcharge is five
    percent of the amount of contributions the employer is
    otherwise obligated to make. Id. For each succeeding critical
    year, the surcharge is ten percent of those contributions. Id.
    The surcharges “shall be due and payable on the same
    schedule as the contributions on which the surcharges are
    based.” Id. § 1085(e)(7)(B). The surcharge terminates when
    a new CBA is adopted in accordance with a rehabilitation
    plan. Id. § 1085(e)(7)(C).
    In 2014, Congress made another effort to help critically
    underfunded plans. In the Multiemployer Pension Reform
    Act of 2014 (MPRA), Pub. L. No. 113-235, 
    128 Stat. 2130
    ,
    2773–882 (2014), Congress again amended ERISA to allow
    a multiemployer pension plan to reduce pension benefits if
    the plan was projected to run out of money before all
    promised benefits are paid. These amendments to the
    MPPAA “apply to . . . surcharges the obligation for which
    accrue on or after December 31, 2014.” MPRA § 109(c),
    128 Stat. at 2792. Because the surcharge in this case accrued
    prior to this date, the parties agree that the MPRA does not
    apply to this dispute.
    WESTERN STATES OFFICE FUND V. WPAS                  9
    II
    In 2007, Welfare & Pension Administration Service, Inc.
    (WPAS) entered into a CBA with Office and Professional
    Employees International Union Local No. 8, AFL-CIO (the
    Union) from January 1, 2007 to December 31, 2016. The
    CBA required WPAS to contribute to a multiemployer
    pension plan administered by the Board of Trustees of the
    Western States Office and Professional Employees Pension
    Fund (the Fund). In Article 12 of the CBA, WPAS agreed to
    be bound by the terms of the multiemployer pension plan and
    to “contribute on behalf of each regular full-time and each
    regular part-time employee covered by this Agreement, not
    to exceed thirty-seven and one half (37 1/2) hours in any one
    week.” The article then sets out the following contribution
    rates:
    Section 12.1(a) Effective April 1, 2007, the
    Employer pension contribution rate will
    increase to $2.50 per compensable hour . . .
    Section 12.1(d) Effective April 1, 2010, the
    Employer pension contribution rate will
    increase to $2.95 per compensable hour . . .
    For the purpose of this Article, a compensable
    hour shall be defined as any time for which an
    employee has received compensation,
    including vacation, holidays, sick leave, jury
    duty, etc.
    In 2009, the multiemployer pension plan administered by
    the Fund was determined to be in critical status, as defined in
    Id. § 1085(b)(2). This determination triggered the automatic
    10            WESTERN STATES OFFICE FUND V. WPAS
    employer surcharge, meaning that each employer had an
    obligation to pay a surcharge of five or ten percent of the
    contributions the employer was required to make under the
    CBA. 
    29 U.S.C. § 1085
    (e)(7)(A). WPAS paid a 5 percent
    surcharge in 2009, and then a 10 percent surcharge each year
    thereafter, in addition to the contributions required by the
    CBA.
    In 2016, WPAS withdrew from the multiemployer
    pension plan. Under § 1381, this made WPAS liable to the
    plan for the amount of withdrawal liability calculated under
    § 1391. Using the statutory formula, the Fund calculated
    WPAS’s total withdrawal liability as $24,436,947.
    As permitted under § 1399, WPAS elected to satisfy its
    withdrawal liability through annual withdrawal payments
    rather than in a lump sum. WPAS’s decision required the
    Fund to calculate the amount of the annual withdrawal
    payments using the formula in § 1399(c)(1)(C)(i), which
    required the calculation of two numbers.3 The Fund first had
    to calculate WPAS’s highest “average annual number of
    contribution base units for the period of 3 consecutive plan
    years.” Id. § 1399(c)(1)(C)(i)(I). Under WPAS’s CBA, the
    “contribution base units” were the compensable hours of
    employees, because WPAS’s contribution rate in the CBA
    was based on a specified dollar amount per compensable
    hour. The Fund determined that the relevant number of
    contribution base units was 296,213 annual compensable
    employee hours.
    Second, the Fund had to calculate the “highest
    contribution rate at which the employer had an obligation to
    3
    See supra at 6 n.1.
    WESTERN STATES OFFICE FUND V. WPAS                 11
    contribute under the plan during the 10 plan years” preceding
    WPAS’s withdrawal. Id. § 1339(c)(1)(C)(i)(II). Although
    the highest contribution rate stated in Section 12.1 of the
    CBA was $2.95 per compensable hour (beginning April 1,
    2010), the Fund determined that the relevant contribution rate
    was $3.245 per compensable hour. The Fund arrived at this
    number by taking ten percent of $2.95 ($.295) and adding it
    to $2.95. The Fund justified this approach on the ground that
    in 2010, WPAS was required under § 1085(e)(7) to pay a ten
    percent surcharge of its total contributions to the plan,
    because the plan was in critical status, see 
    29 U.S.C. § 1085
    (e)(7)(A). According to the Fund, paying a surcharge
    of ten percent of contributions is equivalent to paying a ten
    percent higher contribution rate. Therefore, the Fund
    reasoned, the contribution rate of $2.95 per compensable hour
    was actually $2.95 plus ten percent, or $3.245 per
    compensable hour. The Fund contends that under this
    formulation, $3.245 per compensable hour is the “highest
    contribution rate” that WPAS paid under the plan for
    purposes of calculating the annual withdrawal payment.
    Multiplying $3.245 by 296,213 compensable hours, the Fund
    concluded that WPAS’s annual withdrawal payment was
    $961,211.
    WPAS does not dispute that the number of contribution
    base units is 296,213 compensable hours. However, WPAS
    contends that its “highest contribution rate” was $2.95 per
    compensable hour, as stated in the CBA, and that the Fund
    erred in characterizing the surcharge imposed on WPAS
    under § 1085(e)(7) (because the plan was in critical status) as
    part of the contribution rate. If the Fund had calculated
    WPAS’s annual withdrawal payment using $2.95 per
    compensable hour, WPAS argues, its annual withdrawal
    payment would be $873,828.
    12         WESTERN STATES OFFICE FUND V. WPAS
    WPAS challenged the Fund’s assessment by initiating an
    arbitration proceeding on July 10, 2018. The arbitrator found
    in favor of WPAS and issued a partial final award ordering
    the Fund to recalculate WPAS’s annual withdrawal payment
    using a highest contribution rate of $2.95.
    On May 24, 2019, the Fund filed a complaint to vacate
    the arbitrator’s award in district court. The district court
    granted WPAS’s motion for summary judgment, affirming
    the arbitrator’s finding that WPAS’s “highest contribution
    rate” was $2.95.4 The Fund timely appealed.
    III
    We must decide whether the term “highest contribution
    rate,” as used in the formula for calculating an employer’s
    annual withdrawal payments, see 
    29 U.S.C. § 1399
    (c)(1)(C)(i)(II), includes the percent of the surcharge
    imposed on an employer when a multiemployer plan is in
    critical status, see 
    id.
     § 1085.
    4
    While courts’ review of arbitration awards is typically governed by
    the Federal Arbitration Act, that act is not applicable here. ERISA
    mandates arbitration for disputes regarding the calculation of an
    employer’s annual withdrawal payment, see 
    29 U.S.C. § 1401
    (a)(1), and
    authorizes federal courts to review the arbitrator’s decision and “enforce,
    vacate, or modify the arbitrator’s award,” 
    id.
     § 1401(b)(2). This language
    includes “the authority to decide de novo all issues of law . . .” Bd. of Trs.
    of W. Conf. of Teamsters Pension Tr. Fund v. Thompson Bldg. Materials,
    Inc., 
    749 F.2d 1396
    , 1406 (9th Cir. 1984). Because the underlying
    arbitration here was mandated by ERISA, its standards—and not those of
    the FAA—govern our review.
    WESTERN STATES OFFICE FUND V. WPAS                  13
    A
    We start with the text of the statute, which provides a
    formula for determining an employer’s annual withdrawal
    payment that includes “the highest contribution rate at which
    the employer had an obligation to contribute under the plan
    during the 10 plan years ending with the plan year in which
    the withdrawal occurs.” 
    Id.
     § 1399(c)(1)(C)(i)(II). Because
    the term “contribution rate” is not defined in the statute, we
    interpret these words according to “their ordinary,
    contemporary, common meaning.” Transwestern Pipeline
    Co., LLC v. 17.19 Acres of Prop. Located in Maricopa Cnty.,
    
    627 F.3d 1268
    , 1270 (9th Cir. 2010) (internal quotation marks
    omitted). The relevant dictionary definition of “rate” around
    the time § 1399 was enacted was “the amount, degree, etc. of
    anything in relation to units of something else.” Webster’s
    New World Dictionary, Third College Edition (1986). A
    specified dollar amount per compensable hour is a “rate”
    because it meets this definition. We consider these words
    “with a view to their place in the overall statutory scheme,”
    Satterfield v. Simon & Schuster, Inc., 
    569 F.3d 946
    , 953 (9th
    Cir. 2009) (internal quotation marks omitted). In this case,
    the statute indicates that the definition of “contribution rate”
    is the rate imposed on the employer “under the plan.”
    
    29 U.S.C. § 1399
    (c)(1)(C)(i)(II). ERISA defines “plan” in
    relevant part as “an employee pension benefit plan.” 
    Id.
    § 1002(3). Article 12 of the CBA requires WPAS to
    contribute pursuant to the multiemployer plan, and describes
    the employer’s “contribution rate” as dollar amount per
    compensable employee hour.              Therefore, the most
    straightforward reading of § 1399(c)(1) is that the “highest
    contribution rate” is the highest dollar amount per
    compensable hour specified in the pension plan.
    14       WESTERN STATES OFFICE FUND V. WPAS
    By contrast, the section for calculating the employer’s
    surcharge, § 1085(e)(7)(A), refers to a “surcharge” that is a
    specified percentage of the contributions required by a plan.
    See 
    29 U.S.C. § 1085
    (e)(7) (“Each employer otherwise
    obligated to make contributions for the initial critical year
    shall be obligated to pay to the plan for such year a surcharge
    equal to 5 percent of the contributions otherwise required
    under the applicable collective bargaining agreement (or
    other agreement pursuant to which the employer
    contributes).”). The surcharge does not increase “the amount,
    degree, etc. of anything in relation to units of something
    else,” and therefore does not constitute a rate or part of a rate.
    Instead, the surcharge required by § 1085 is imposed after the
    total amount of contributions has been determined (i.e., after
    the dollar amount in the contribution rate has been multiplied
    by the total number of compensable hours). Rather than
    increasing the rate (the dollar amount per each hour) by ten
    percent, the surcharge requires a payment of ten percent of
    the total amount of contributions. See id.
    Therefore, the surcharge automatically imposed on an
    employer when a plan is in critical status, see id., does not
    increase the applicable contribution rate, which in this case is
    the dollar amount per compensable hours. In short, we join
    the well-reasoned opinion by the Third Circuit in concluding
    that the surcharge is not the “highest contribution rate”
    because it is not a “contribution rate” at all. Bd. of Trs. of IBT
    Loc. 863 Pension Fund v. C & S Wholesale Grocers, Inc.,
    
    802 F.3d 534
    , 544–45 (3d Cir. 2015). Nothing in ERISA
    suggests that the imposition of a surcharge when a plan is in
    critical status increases the employer’s contribution rate by
    ten percent. Accordingly, the “highest contribution rate” in
    this context means the highest dollar amount per compensable
    WESTERN STATES OFFICE FUND V. WPAS                          15
    hour that the employer is obligated to contribute under the
    plan,5 here $2.95.
    B
    The Fund advances several arguments to counter this
    interpretation. The Fund argues that the surcharge imposed
    when a plan is in critical status, 
    29 U.S.C. § 1085
    (e)(7), must
    be included in WPAS’s “highest contribution rate” for annual
    withdrawal liability, see 
    id.
     § 1399(c)(1)(C)(i)(II), because
    the surcharge increases the contribution WPAS was required
    to make to the multiemployer plan. This interpretation is
    contradicted by the language of the statute, which makes clear
    that the surcharge is not a contribution, let alone an increase
    to a contribution rate.
    First, the section imposing a surcharge on employers
    when a plan is in critical status, id. § 1085(e)(7), distinguishes
    between the surcharge imposed on the employer by statute,
    and the contribution required by the plan. For instance,
    § 1085(e)(7)(B) provides that surcharges are “due and
    5
    The statute providing the calculation for the annual withdrawal
    penalty refers to “the highest contribution rate at which the employer had
    an obligation to contribute under the plan.”                    
    29 U.S.C. § 1399
    (c)(1)(C)(i)(II) (emphasis added). The phrase “obligation to
    contribute” is defined to mean “an obligation to contribute
    arising—(1) under one or more collective bargaining (or related)
    agreements, or (2) as a result of a duty under applicable labor-management
    relations law.” 
    Id.
     § 1392(a). Although the parties make various
    arguments regarding the meaning of the phrase “obligation to contribute,”
    we do not need to address these arguments here. Given our holding that
    the surcharge imposed under § 1085 when a plan is in critical status is not
    a “contribution rate” at all, the source of the employer’s obligation to
    contribute to a multiemployer pension plan (whether the CBA or labor-
    management relations law) is not relevant.
    16       WESTERN STATES OFFICE FUND V. WPAS
    payable on the same schedule as the contributions on which
    the surcharges are based.” Id. (emphasis added). If the
    employer fails to pay the surcharge, it “shall be treated as a
    delinquent contribution.” Id. (emphasis added). This
    language makes clear that the surcharge is based on the
    contribution, but is not itself deemed to be part of the
    contribution.
    Second, even if the surcharge is considered part of the
    employer’s contribution as a practical matter, the surcharge
    does not cause an increase in a “contribution rate.” The Fund
    fails to point to any statutory language supporting its
    recharacterization of the surcharge as increasing the number
    of dollars owed (in the dollars-per-compensable-hour
    contribution rate set forth in the CBA) by ten percent.
    Indeed, ERISA undercuts the Fund’s interpretation, because
    it expressly distinguishes between an employer’s
    “contribution” to a multiemployer plan and the employer’s
    “contribution rates.” For example, in addressing the rules for
    additional funding when a plan is in critical status, the statute
    states that “[a]ny failure to make a contribution under a
    schedule of contribution rates provided under this subsection
    shall be treated as a delinquent contribution.”               Id.
    § 1085(e)(3)(C)(iv) (emphasis added). “[W]ere contributions
    the same as contribution rates, that provision would be
    redundant.” C & S Wholesale Grocers, Inc., 802 F.3d at 545.
    Because the surcharge is neither a contribution nor a
    contribution rate under the statute, it does not affect § 1399’s
    formula for calculating annual withdrawal payments.
    The Fund also argues that our interpretation is
    inconsistent with Congress’s intent in enacting withdrawal
    liability provisions. The Fund relies on Milwaukee Brewery
    Workers’ Pension Plan v. Joseph Schlitz Brewing Co.,
    WESTERN STATES OFFICE FUND V. WPAS                 17
    
    513 U.S. 414
    , which described the effect of the 1980
    amendments adding the withdrawal liability provisions to
    ERISA. 
    Id. at 417
    . According to Milwaukee Brewery,
    because “maintaining level funding for the plan is an
    important goal of” ERISA, the amendment “fixes the amount
    of each annual payment at a level that (roughly speaking)
    equals the withdrawing employer’s typical contribution in
    earlier years.” 
    Id. at 418
    . The Fund argues that because our
    interpretation today results in an annual withdrawal payment
    that is ten percent lower than what the employer would make
    if it did not withdraw (because it does not include the
    surcharge for the plan being in critical status), our
    interpretation undermines Congress’s intent in enacting the
    MPPAA.
    The Fund’s reliance on Milwaukee Brewery is misplaced,
    because it was decided eleven years before Congress enacted
    the amendment providing for a surcharge, and therefore did
    not consider the relationship between the annual withdrawal
    payments and the surcharge on employers when plans were
    in critical status. Milwaukee Brewery sheds no light on how
    the annual withdrawal payments and the surcharge for plans
    in critical status may interact. Indeed, the current version of
    ERISA contemplates that an employer’s payments to
    multiemployer pension plans in critical status may decrease
    after the employer withdraws from the plan. See 
    29 U.S.C. § 1399
    (c)(1)(B) (extinguishing an employer’s withdrawal
    liability after it makes 20 annual payments, even where these
    payments do not equal the total withdrawal liability).
    The Fund also argues that ERISA requires us to infer that
    annual withdrawal payments include the surcharge for plans
    in critical status. The Fund notes that when Congress enacted
    the surcharge provisions in the 2006 PPA, it clarified that the
    18        WESTERN STATES OFFICE FUND V. WPAS
    imposition of the surcharge on the employer would not affect
    the calculation of an employer’s total withdrawal liability,
    which had been imposed in the MPPAA in 1980. See
    
    29 U.S.C. § 1085
    (e)(9)(B) (2006) (providing that “[a]ny
    surcharges . . . shall be disregarded in determining an
    employer’s withdrawal liability under section 1391 of this
    title,” subject to certain exceptions).6 But the 2006 PPA did
    not use similar language to clarify that the surcharge would
    not affect the calculation of an employer’s annual withdrawal
    payments. Therefore, the Fund argues, we must infer that the
    annual withdrawal payment includes the surcharge. We
    reject this argument. In interpreting § 1399(c)(1)(C)(i), and
    its formula for calculating the annual withdrawal payment,
    we give effect to the statutory language, which was enacted
    in the 1980 MPPAA; we do not change our interpretation
    based on negative inferences that may be drawn from a
    subsequent amendment to ERISA in 2006. “Congress may
    amend a statute simply to clarify existing law, to correct a
    misinterpretation, or to overrule wrongly decided cases.”
    Hawkins v. United States, 
    30 F.3d 1077
    , 1082 (9th Cir. 1994).
    We must not attempt to deduce the “intent behind one act of
    Congress from the implication of a second act passed years
    later.” Schrader v. Idaho Dep’t of Health & Welfare,
    
    768 F.2d 1107
    , 1114 (9th Cir. 1985).
    For the same reason, we reject the Fund’s similar
    argument based on Congress’s amendment of ERISA in the
    2014 MPRA. The MPRA added the language the Fund notes
    is missing from the PPA: it expressly excluded the surcharge
    6
    As effective December 16, 2014, this subsection reads: “Any
    surcharges . . . shall be disregarded in determining the allocation of
    unfunded vested benefits to an employer under Section 1391 of this title
    . . .” See 
    29 U.S.C. § 1085
    (g)(2) (2014).
    WESTERN STATES OFFICE FUND V. WPAS                         19
    from an employer’s “highest contribution rate.” 
    29 U.S.C. § 1085
    (g)(2).7 According to the Fund, this change raises the
    inference that, prior to 2014, the surcharge was a part of an
    employer’s contribution rate. Again, we conclude that this
    inference is unwarranted. See Hawkins, 
    30 F.3d at 1082
    ;
    Schrader, 
    768 F.2d at 1114
    . Given that nothing in ERISA
    supports an interpretation that the surcharge is a component
    of a contribution rate, a more plausible inference is that
    Congress amended the statute to correct—once and for
    all—the type of misinterpretations urged by the Fund.8
    AFFIRMED.
    7
    
    29 U.S.C. § 1085
    (g)(2) (effective December 2014) states:
    (2) Surcharges
    Any surcharges under subsection (e)(7) shall be
    disregarded in determining the allocation of unfunded
    vested benefits to an employer under section 1391 of
    this title and in determining the highest contribution
    rate under section 1399(c) of this title, except for
    purposes of determining the unfunded vested benefits
    attributable to an employer under section 1391(c)(4) of
    this title or a comparable method approved under
    section 1391(c)(5) of this title.
    8
    The Fund also cites legislative history concerning the MPRA to
    supports its interpretation of ERISA as it existed prior to that amendment.
    Even if it were appropriate to examine legislative history in this case,
    “[p]ost-enactment legislative history (a contradiction in terms) is not a
    legitimate tool of statutory interpretation.” Bruesewitz v. Wyeth LLC, 
    562 U.S. 223
    , 242 (2011). Therefore, we do not address these arguments.