Qwest Corp. v. Leroy Koppendrayer ( 2006 )


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  •                     United States Court of Appeals
    FOR THE EIGHTH CIRCUIT
    ___________
    No. 04-3677
    ___________
    QWEST CORPORATION, A Colorado *
    Corporation,                             *
    *
    Plaintiff-Appellant,                 *
    *
    v.                                *
    *
    LEROY KOPPENDRAYER, in his               *
    official capacity as Chairman of the     *
    Minnesota Public Utilities Commission; *     Appeal from the United States
    ELLEN GAVIN, in her official capacity *      District Court for the
    as a member of the Minnesota Public      *   District of Minnesota.
    Utilities Commission; R. MARSHALL *
    JOHNSON, in his official capacity as a *
    member of the Minnesota Public Utili- *
    ties Commission; PHYLLIS RHEA,           *
    in her official capacity as a member of *
    the Minnesota Public Utilities           *
    Commission; GREGORY SCOTT, in *
    his official capacity as a member of the *
    Minnesota Public Utilities Commission; *
    MINNESOTA PUBLIC UTILITIES               *
    COMMISSION;                              *
    *
    Defendants-Appellees,                *
    *
    AT&T OF THE MIDWEST STATES, *
    INC.; MCI WORLDCOM COMMUNI- *
    CATIONS, INC.; MCIMETRO                  *
    ACCESS TRANSMISSION                      *
    SERVICES, INC., LLC; ESCHELON *
    TELECOM OF MINNESOTA, INC.; *
    INTEGRA TELECOM, Integra             *
    Telecom of Minnesota, Inc.;          *
    *
    Intervenors Defendants-Appellees, *
    *
    CRYSTAL COMMUNICATIONS;              *
    TEKSTAR COMMUNICATIONS,              *
    INC.;                                *
    *
    Movants Below,                     *
    *
    US LINK, INC.; NORTHSTAR             *
    ACCESS, LLC; OTTER TAIL              *
    TELECOM, LLC; MCLEOD USA             *
    TELECOMMUNICATIONS, INC.,            *
    *
    Intervenors Defendants-Appellees. *
    ___________
    Submitted: December 15, 2005
    Filed: February 2, 2006
    ___________
    Before WOLLMAN, LAY, and RILEY, Circuit Judges.
    ___________
    LAY, Circuit Judge.
    Qwest Corporation (“Qwest”) appeals two district court1 decisions upholding
    orders of the Minnesota Public Utilities Commission (“MPUC” or “Commission”)
    which set and applied retroactively the rates that telecommunication companies are
    required to pay when leasing Qwest’s network infrastructure. We affirm the district
    court.
    1
    The Honorable Ann D. Montgomery, United States District Judge for the
    District of Minnesota.
    -2-
    I.
    The 1996 Telecommunications Act (“1996 Act”) was intended to create
    competition between carriers in local telecommunication service markets that had
    been traditionally dominated by a single monopoly carrier. Incumbent local exchange
    carriers (“ILECs”), such as Qwest, own the network infrastructure necessary to
    provide local telephone service. The 1996 Act requires ILECs to lease their networks
    to competitive local exchange carriers (“CLECs”) and outlines procedures for
    determining lease rates. 47 U.S.C. §§ 251, 252. Section 252 allows ILECs and
    CLECs to negotiate lease terms themselves in the form of interconnection agreements
    (“ICAs”). § 252(a). However, if the parties cannot successfully negotiate a rate, state
    public utilities commissions have the authority to arbitrate rates. § 252(b).
    FCC rules require state public utilities commissions to establish rates based on
    a cost methodology called Total Element Long Run Incremental Cost (“TELRIC”).
    See Implementation of the Local Competition Provisions in the Telecommunications
    Act of 1996, First Report and Order, 11 F.C.C.R. 15,499 ¶¶ 674-90 (FCC rel. Aug. 8,
    1996) (“Local Competition Order”). Under TELRIC, unbundled network element
    (“UNE”) rates are not set based on an ILEC’s actual costs in building and maintaining
    its network. Rather, UNE rates are calculated according to what it would cost today
    to build and operate an efficient network that can provide the same services as the
    ILEC’s existing network. In this way, UNE rates can provide accurate market signals
    to inform CLECs’ decisions about whether to invest in their own facilities or lease the
    ILEC’s facilities.
    In the spring of 2002, MPUC reviewed UNE rates, some of which the
    Commission had previously set in a generic cost proceeding and were based on
    TELRIC. A group of CLECs2 contended that some of these rates no longer complied
    2
    A collection of interested CLECs are intervenors in this case.
    -3-
    with TELRIC due to changes in market conditions and technology. MPUC concluded
    that UNE rates would likely change, and therefore issued an order on April 4, 2002,
    declaring that all Qwest UNE rates under review would be deemed interim and subject
    to true-up payments after MPUC set permanent rates (“April 4 Order”). MPUC
    adopted an Administrative Law Judge’s (“ALJ”) recommendation on October 2,
    2002,3 and filed an order establishing permanent rates on March 24, 2003. As a result,
    Qwest owed the CLECs almost $13 million in true-up payments, which began
    accruing on April 4, 2002.
    Qwest brought suit in district court, challenging both the establishment of
    interim rates in the April 4 Order and the permanent UNE rates set by MPUC. In two
    separate opinions, the district court denied both of Qwest’s challenges and upheld the
    orders. Qwest now appeals.
    Title 47 U.S.C. § 252(e)(6) provides for federal court review of state
    commission decisions. We review a state commission’s interpretation of federal law
    de novo. Qwest Corp. v. Minnesota Pub. Util. Comm’n, 
    427 F.3d 1061
    , 1064 (8th Cir.
    2005). However, in recognition of the state commission’s superior technical
    expertise, we review its factual determinations under the arbitrary and capricious
    standard. Ace Tel. Ass’n v. Koppendrayer, 
    432 F.3d 876
    , 878 (8th Cir. 2005).
    3
    MPUC adopted the findings and conclusions of a recommendation by
    Administrative Law Judges Kathleen A. Sheehy and Steve M. Mihalchick.
    -4-
    II.
    A. Retroactive Ratemaking
    Qwest first argues that the April 4 Order violates the rule against retroactive
    ratemaking. The rule against retroactive ratemaking prohibits a commission from
    prescribing rates to recoup a utility’s past losses for transactions that have already
    taken place. See, e.g., BP West Coast Prod., LLC v. FERC, 
    374 F.3d 1263
    , 1301
    (D.C. Cir. 2004); Pac. Gas & Elec. Co. v. FERC, 
    373 F.3d 1315
    , 1319-20 (D.C. Cir.
    2004); Consol. Edison Co. of New York v. FERC, 
    347 F.3d 964
    , 969 (D.C. Cir. 2003).
    The purpose of the rule against retroactivity, and the closely related filed rate doctrine,
    is to ensure predictability. Pub. Util. Comm’n of California v. FERC, 
    988 F.2d 154
    ,
    163 (D.C. Cir. 1993). Therefore, the rule does not apply in situations where there is
    “adequate notice that resolution of some specific issue may cause a later adjustment
    to the rate being collected at the time of service.” Natural Gas Clearinghouse v.
    FERC, 
    965 F.2d 1066
    , 1075 (D.C. Cir. 1992); see also OXY USA, Inc. v. FERC, 
    64 F.3d 679
    , 699 (D.C. Cir. 1995) (“The goals of equity and predictability are not
    undermined when the Commission warns all parties involved that a change in rates
    is only tentative and might be disallowed.”).
    The April 4 Order expressly put Qwest and all other interested parties on notice
    that the existing UNE rates were under review and subject to true-up payments when
    MPUC adopted permanent rates. Rates collected prior to April 4, 2002, are not
    subject to true-up payments. With these considerations in mind, the April 4 Order
    “change[d] what would be purely retroactive ratemaking into a functionally
    prospective process by placing the relevant audience on notice at the outset that the
    rates being promulgated [were] provisional only and subject to later revision.” Natural
    -5-
    Gas 
    Clearinghouse, 965 F.2d at 1075
    (citation omitted). Therefore, the April 4 Order
    does not violate the rule against retroactive ratemaking.4
    B. The Language and Policy of the 1996 Act and FCC Orders
    The remainder of Qwest’s arguments about the validity of the April 4 Order
    center around the language and policy of the 1996 Act. Qwest argues that Congress
    intended “parties to know the rates for network elements prior to the transactions to
    which they would apply” because under the 1996 Act, rates for network elements
    must be included in ICAs. See 47 U.S.C. § 252(a)(1), (c)(2). However, merely
    because state public utilities commissions must arbitrate and “establish any rates for
    interconnection, services, or network elements,” § 252(c)(2), there is nothing in the
    1996 Act to suggest that these rates may not be interim.
    Qwest further argues that interim rates and true-up payments are inconsistent
    with the 1996 Act and FCC pricing rules, which were designed to facilitate a market-
    driven telecommunications industry with a preference for voluntarily negotiated ICAs
    and UNE rates that send the correct economic signals to CLECs. See Pac. Bell v. Pac-
    W. Telecomm, Inc., 
    325 F.3d 1114
    , 1127 (9th Cir. 2003); Iowa Utils. Bd. v. FCC, 
    120 F.3d 753
    , 801 (8th Cir. 1997), rev’d on other grounds, AT&T Corp. v. Iowa Utils. Bd.,
    
    525 U.S. 366
    (1999); In re Review of the Commission’s Rules Regarding the Pricing
    4
    Qwest argues that the notice requirement is wholly illusory because nothing
    would prevent a state public utility commission from simply declaring current rates
    to be interim whenever it sees fit. However, the purpose of the rule against retroactive
    ratemaking is to ensure fairness and predictability. Courts have held in a variety of
    factual situations that as long as the affected parties have notice, these concerns are
    satisfied. See, e.g., GTE South, Inc. v. Morrison, 
    199 F.3d 733
    , 741 (4th Cir. 1999);
    Exxon Co., USA v. FERC, 
    182 F.3d 30
    , 49 (D.C. Cir. 1999); OXY 
    USA, 64 F.3d at 699-700
    ; Natural Gas 
    Clearinghouse, 965 F.2d at 1075
    -77.
    -6-
    of Unbundled Network Elements and the Resale of Service by Incumbent Local
    Exchange Carriers, Notice of Proposed Rulemaking, 18 F.C.C.R. 18,945, 20,265 ¶
    7 (FCC rel. Sept. 15, 2003) (“TELRIC NPRM”). However, none of the policy goals
    noted by Qwest changes the state public utilities commissions’ responsibility to ensure
    that the rates charged by ILECs comply with the cost-based standards of the 1996 Act.
    See Verizon Communications, Inc. v. FCC, 
    535 U.S. 467
    , 476 (2002); 47 U.S.C. §
    252(d). Rather, the need for correct economic signals actually supports the use of
    interim rates and true-up payments. While some regulatory lag is inevitable and even
    helpful to ensure facilities-based competition, see 
    Verizon, 535 U.S. at 504-07
    , a “rate
    that is long out of date . . . frustrates the goals of TELRIC.” AT&T Communications
    of Illinois, Inc. v. Illinois Bell Tel. Co., 
    349 F.3d 402
    , 411 (7th Cir. 2003). A limited
    adjustment of UNE rates that are no longer TELRIC-compliant will not discourage
    CLECs from investing in their own facilities.5 See 
    Verizon, 535 U.S. at 505-07
    .
    Moreover, interim rates and true-up payments will not discourage voluntary
    negotiations by CLECs. Parties may not seek arbitration until after negotiations have
    failed. § 252(a), (b). The possibility of true-up payments will not reduce the parties’
    incentive to initially negotiate. Rather, potential true-up payments that may favor
    either an ILEC or the CLECs provide a disincentive for any party to delay
    negotiations so that out of date rates may continue to be charged. Nothing in the
    language or policy of the 1996 Act suggests that interim rates subject to true-up are
    forbidden when a state public utility commission is uncertain whether the current rates
    are TELRIC-compliant. In fact, contrary to Qwest’s assertions, the FCC Orders
    actually support the opposite conclusion.
    5
    Contrary to Qwest’s concerns, regulatory lag will not disappear after the use
    of interim rates. Rates in a regulated industry will always lag behind prices in a truly
    competitive market because the true-ups do not date back to when the existing rates
    ceased to be accurate.
    -7-
    The FCC approved the use of interim rates subject to true-up when state public
    utilities commissions were initially attempting to arbitrate TELRIC-compliant rates
    after the passage of the 1996 Act. Local Competition Order ¶ 693. The FCC has also
    authorized the use of interim rates subject to true-up in proceedings under 42 U.S.C.
    § 271. ILECs enter into ICAs and make their local network infrastructure available
    to CLECs so that the ILEC may enter the interLATA market. § 271(c). The FCC has
    approved several ILECs’ entry into the interLATA market under § 271 even though
    the rates in the relevant ICAs were interim and subject to true-up. See In re
    Application by SBC Communications Inc., for Authorization to Provide In-Region,
    InterLATA Services in California, 17 F.C.C.R. 25,650 ¶ 37 (FCC rel. Dec. 19, 2002)
    (“California 271 Order”); In re Application by SBC Communications Inc., Pursuant
    to Section 271 of the Telecommunications Act of 1996 to Provide In-Region,
    InterLATA Services in Texas, 15 F.C.C.R. 18,354 ¶¶ 85-90 (FCC rel. June 30, 2000)
    (“Texas 271 Order”); In re Application by Bell Atlantic New York for Authorization
    Under Section 271 of the Communications Act to Provide In-Region, InterLATA
    Service in the State of New York, 15 F.C.C.R. 3953 ¶¶ 256-60 (FCC rel. Dec. 22,
    1999) (“New York 271 Order”).
    Interim rates are also used in orders by the FCC’s Wireline Competition
    Bureau. If states refuse to arbitrate UNE rates, the FCC will preempt the state
    commission’s jurisdiction and assume responsibility for the matter. See 47 U.S.C.
    § 252(e)(5). The FCC has delegated this authority to the Wireline Competition
    Bureau. See In re Procedures for Arbitrations Conducted Pursuant to Section
    252(e)(5) of the Communications Act of 1934, As Amended, 16 F.C.C.R. 6231 ¶ 8
    (FCC rel. Jan. 19, 2001). When the Wireline Competition Bureau arbitrates UNE
    rates for ICAs, the FCC requires the Bureau to set the rates as interim subject to true-
    up in the event the FCC ultimately modifies any of the rates set by the Bureau. 
    Id. ¶ 10.
    In 2003, the Wireline Competition Bureau arbitrated UNE rates in Virginia. In
    re Petition of WorldCom, Inc. Pursuant to Section 252(e)(5) of the Communications
    Act for Preemption of the Jurisdiction of the Virginia State Corporation Commission
    -8-
    Regarding Interconnection Disputes with Verizon Virginia Inc., 18 F.C.C.R. 17,722
    (FCC rel. Aug. 29, 2003) (“Virginia Arbitration Order”). The Wireline Competition
    Bureau set UNE rates for Virginia and, in accordance with FCC requirements, ordered
    that any rate established would be subject to a retroactive true-up if the FCC
    established different rates upon review. 
    Id. ¶ 26.
    Qwest contends that these FCC orders do not support the interim rates set by
    MPUC in this case. First, Qwest argues that the FCC’s approval of interim rates is
    limited to cases where permanent TELRIC-compliant rates were not already
    established, or where there was misconduct by the ILEC. Second, Qwest attempts to
    distinguish the Virginia Arbitration Order by arguing that arbitration by the Wireline
    Competition Bureau is a unique circumstance because the Bureau’s orders are always
    subject to review by the FCC at a party’s request.
    We find Qwest’s arguments unpersuasive. First, merely because the FCC has
    allowed (or in the case of the Wireline Competition Bureau, required) interim rates
    subject to true-up in instances different than the one presented here does not mean the
    use of interim rates is limited to those circumstances. Rather, it suggests the FCC
    recognizes that limited use of interim rates can be valuable when it is uncertain
    whether the current rates are TELRIC-compliant. See California 271 Order ¶¶ 33, 37;
    Texas 271 Order ¶¶ 85-90; New York 271 Order ¶¶ 258-60; see also In re Application
    of Verizon New England Inc. for Authorization to Provide In-Region InterLATA
    Services in Massachusetts, 16 F.C.C.R. 8988 ¶ 34 (FCC rel. Apr. 16, 2001) (stating
    that interim rates subject to true-up are appropriate “in certain circumstances”).
    Second, the FCC approved TELRIC-based interim rates in the Texas 271 Order,
    suggesting that the retroactive adjustment of TELRIC-compliant rates is not
    disfavored by the FCC. Texas 271 Order ¶ 89. Third, while ILEC misconduct was
    a contributing factor in the use of interim rates in the California 271 Order, California
    271 Order ¶¶ 23, 37 n.85, ILEC misconduct is certainly not the sole instance where
    -9-
    interim rates have been approved by the FCC. Rather, the FCC has approved interim
    rates in § 271 Orders “so long as an interim solution to a particular rate dispute is
    reasonable under the circumstances, the state commission has demonstrated its
    commitment to [FCC] pricing rules, and provision is made for refunds or true-ups
    once permanent rates are set.” Texas 271 Order ¶ 88, quoted in California 271 Order
    ¶ 37; see also New York 271 Order ¶¶ 258-59.
    Qwest argues that the interim rates established by MPUC create too much
    uncertainty. However, whether rates are interim as arbitrated by the Wireline
    Competition Bureau or set by a state public utilities commission for the purposes of
    § 271 proceedings, there is always a significant amount of time where the rates are
    subject to a refund or true-up in the future. The FCC relies upon a case-by-case
    approach, where interim rates may be appropriate if they are “reasonable under the
    circumstances.” California 271 Order ¶ 37; Texas Order ¶¶ 85, 88; New York Order
    ¶ 258. Under the circumstances, we consider the limited uncertainty created by the
    April 4 Order to be reasonable.
    Finally, Qwest argues that the April 4 Order violates the 1996 Act by
    retroactively changing the terms of binding ICAs. See 47 U.S.C. § 252(a)(1). Qwest
    bases this argument on the Ninth Circuit’s decision in Pacific Bell v. Pac-West
    Telecomm, Inc., 
    325 F.3d 1114
    (9th Cir. 2003). In Pacific Bell, the California Public
    Utility Commission (“CPUC”) issued a generic order that designated all calls to
    internet service providers as local traffic, thereby subject to reciprocal compensation
    provisions in the parties’ existing ICAs. 
    Id. at 1120-21.
    The Ninth Circuit first
    established that CPUC lacked authority under the 1996 Act to promulgate generic
    regulations over internet service provider traffic because the FCC had deemed this
    traffic to be “interstate.” 
    Id. at 1125.
    CPUC’s role over interstate traffic is limited to
    its authority under § 252 to approve new arbitrated ICAs and to interpret existing
    agreements. 
    Id. at 1125-27.
    Second, the court stated that the generic order violated
    -10-
    § 252 because it effectively changed the terms of all applicable ICAs in California.
    
    Id. at 1127.
    Finally, the Ninth Circuit concluded that CPUC could not be exercising
    its power to interpret ICAs under § 252 because CPUC failed to consider any specific
    ICA or reciprocal compensation provision. 
    Id. at 1128.
    Unlike CPUC in Pacific Bell, there is no question in the present case that
    MPUC has authority to arbitrate UNE rates under the 1996 Act. § 252(c), (d), (g).
    Moreover, the April 4 Order does not purport to interpret the rates or terms of existing
    ICAs. Rather, MPUC exercised its authority to establish new UNE rates in a generic
    proceeding. § 252(g). The April 4 Order was not based upon an interpretation of the
    existing ICAs. Therefore, there was no need for MPUC to review the terms of
    specific agreements before issuing the April 4 Order.
    III.
    We must next consider whether MPUC was arbitrary and capricious in setting
    select permanent UNE rates. Qwest challenges four MPUC actions: (1) the reduction
    of switching costs; (2) the rates set for high capacity loops; (3) the plant mix
    estimates; and (4) the adoption of the HAI Model to determine general support assets.
    After considering the record, we hold that MPUC was not arbitrary and capricious.
    A. Reduction of Switching Costs
    Switches route telephone calls to their destinations. Switches can either be
    modern, computerized digital loop carrier (“DLC”) systems, or older and more
    -11-
    expensive analog switches.6 To comply with TELRIC, MPUC had to establish switch
    rates that included the percentage of digital switches that a hypothetical efficient
    network in Minnesota would utilize. MPUC adopted the HAI Model, proposed by
    AT&T/MCI, which uses the switching investment calculated by the FCC Synthesis
    Model. See In re Forward-Looking Mechanism for High Cost Support, Tenth Report
    and Order, 14 F.C.C.R. 20,156 (FCC rel. Nov. 2, 1999) (“Inputs Order”). The HAI
    Model makes a reduction to the calculated switching investment to reflect the savings
    that would result from an increased use of DLC systems. The HAI Model assumes that
    the FCC Synthesis Model accounts for only 18.3% DLC and that in Minnesota DLC
    penetration in a hypothetical efficient network would actually be 57.5%. Therefore,
    the MPUC adopted a DLC adjustment to account for the higher DLC penetration and
    resulting savings.
    Qwest argues that the DLC adjustment is arbitrary and capricious because there
    is no evidence that the FCC Synthesis Model assumed only 18.3% DLC, or that the
    FCC Synthesis Model did not already reflect the savings associated with digital
    switches. The FCC refused to adopt a DLC adjustment for this very reason in the
    Inputs Order. See id.¶ 327. However, the FCC cost model was developed to
    determine federal universal support and the FCC explicitly cautioned parties against
    using the federal input values to make claims regarding UNE rate determinations in
    other proceedings. 
    Id. ¶ 32.
    Therefore, MPUC was not arbitrary and capricious
    merely because it reached a different conclusion than the FCC.
    AT&T’s expert testified that the FCC inputs assumed approximately 18.3% of
    the switches were digital. Moreover, AT&T’s expert and an expert for the Minnesota
    6
    Lines served by DLC do not utilize the main distribution frame and utilize a
    switch port termination that is cheaper than the corresponding analog interface.
    Therefore, more use of DLC in a hypothetical network results in lower switching
    investment.
    -12-
    Department of Commerce (“Department of Commerce” or “Department”) testified
    that the FCC inputs from 1999 did not adequately reflect the savings that a forward-
    looking network would achieve with DLC switches. Qwest provided no evidence to
    the contrary. Therefore, the ALJ rejected Qwest’s argument that the DLC adjustment
    should be set to zero, as in the FCC Synthesis Model, because this would overstate the
    switching investment for a forward-looking network. The 1996 Act requires state
    public utilities commissions to make their decisions based upon the best evidence
    available, and does not mandate that they independently acquire data to build an
    evidentiary record. See § 252(b)(4); GTE S., Inc. v. Morrison, 
    199 F.3d 733
    , 748 (4th
    Cir. 1999). Even assuming the HAI Model contains flaws, Qwest provided the ALJ
    with no satisfactory alternative. As a result, MPUC was not arbitrary and capricious
    in making the DLC adjustment based upon the evidence presented.
    B. Rates for High Capacity Loops
    Qwest next argues that MPUC improperly adopted the HAI Adjunct Model
    proposed by AT&T and MCI to calculate the rates for high capacity loops. High
    capacity loops are larger wires that connect high-volume customers to a telephone
    company wire center. The FCC requires TELRIC studies to “explain with specificity”
    how “the associated costs are developed.” Local Competition Order ¶ 691. When
    offered in a spreadsheet, a model should reveal the underlying formulae and should
    include data or inputs that are easily verifiable. TELRIC NPRM ¶ 41. Qwest objects
    to the Adjunct Model because it provided only “aggregate per line investment
    figures,” rather than specifying the individual cost of the particular components that
    made up that input.
    While the ALJ acknowledged the model would have been stronger with more
    price documentation, the Adjunct Model uses per-line costs based on proprietary
    information from Qwest’s competitors and the vendors that supply the relevant
    -13-
    equipment. As a result, the data concerning costs for each particular company was not
    disclosed. The data collected from the individual competitors and vendors was used
    to compute an average per line investment for the relevant equipment and operations.
    The inputs were verified by expert witnesses who sponsored the model, and were
    independently verified by the Department of Commerce’s technical expert.
    Qwest asserts that there was insufficient documentation to support the
    conclusion of the experts; however Qwest failed to provide the ALJ with any evidence
    that the prices used in the Adjunct Model were inadequate. Moreover, the ALJ and
    MPUC rejected Qwest’s proposed model and proffered alternative per-line costs
    because they relied on the structure of Qwest’s existing network, see 47 C.F.R. §
    51.505(d)(1); Local Competition Order ¶ 705, and overstated loop costs. MPUC is
    required by the 1996 Act to resolve the arbitrated issues in a timely manner, using the
    best information available. See § 252(b)(4). As a result, MPUC must choose the
    model it feels most accurately reflects an efficient, forward-looking network. See
    GTE S., 
    Inc., 199 F.3d at 748
    . In light of the evidence presented to the ALJ, we
    cannot say MPUC was arbitrary and capricious in choosing the Adjunct Model to
    calculate high capacity loop rates.
    C. Plant Mix Determination
    Qwest also challenges MPUC’s plant mix determinations. “Plant mix” refers
    to the ratios of different categories of telephone lines. Aerial lines are strung between
    telephone poles, while buried and underground lines are located below ground.
    Buried lines are placed in a trench and covered with earth. Underground lines are
    placed in a buried conduit that is accessible by manholes. The ALJ and MPUC
    adopted plant mix ratios recommended by the Department of Commerce, rejecting
    ratios suggested by Qwest and the CLECs in competing models. The ALJ concluded
    that the CLEC model included too high a percentage of aerial plant, given that
    -14-
    communities were moving away from aerial plant due to aesthetic concerns, while the
    Qwest model overstated the amount of underground plant. Therefore, the ALJ
    adopted the Department’s recommendation that increased buried plant and reduced
    investment in underground and aerial plant. Qwest is challenging the reduction in
    underground lines, arguing that MPUC improperly relied upon the unsupported
    testimony of the Department’s expert.
    In a prior proceeding, MPUC had adopted the Department’s conclusion that
    14.5% of plant was underground. Based upon the testimony of the Department’s
    expert, the ALJ concluded that this percentage was no longer accurate and established
    a new weighted average of 5.8% underground plant. The Department’s expert reached
    this conclusion in part by relying upon a survey conducted for a Department of
    Commerce study for a different proceeding which reflected that telecommunications
    companies were installing very little aerial or underground plant. Qwest argues that
    MPUC improperly relied upon the unsupported testimony of the Department’s expert
    because this survey was not included in the record and the expert failed to explain his
    methodology.
    However, the survey was only part of the expert’s rationale. The Department’s
    expert explained to the ALJ that the most accurate forward-looking estimates of plant
    mix have changed since he made his initial calculation of 14.5% underground plant.
    He explained that this prior estimate improperly relied upon carriers’ actual use of
    plant in embedded networks and that there would be a significant difference between
    these numbers and what a telecommunications company would chose when “starting
    from scratch.” As a result, he used his prior estimates as a benchmark, which he
    adjusted to account for what an efficient carrier deploying a forward-looking network
    would do today. With that in mind, the Department’s expert explained that buried
    plant would be the preferred placement method in a forward-looking network because
    -15-
    it is less expensive to place than underground plant and easier to maintain and more
    accepted by communities than aerial plant.7
    Qwest again objects to the ALJ’s rejection of its proposal, which was based
    upon Qwest’s embedded numbers. Qwest’s embedded numbers are not dispositive.
    See 47 C.F.R. § 51.505(d)(1). While Qwest may actually employ a much higher
    percentage of underground plant than the adopted proposal, MPUC could conclude
    that a forward-looking network would employ a smaller percentage of underground
    plant. As discussed above, MPUC was engaged in time-sensitive decision making.
    After MPUC determined that neither the Qwest nor the CLEC models was appropriate
    to determine plant mix, it was not arbitrary and capricious in choosing to adopt a
    middle ground proposed by the Department of Commerce. See GTE S., 
    Inc., 199 F.3d at 748
    .
    D. Determining General Support Assets
    Finally, Qwest objects to MPUC’s adoption of the HAI model to calculate
    general support asset (“GSA”) expenses. GSA expenses are the costs for the
    necessary items that keep a network running and make telephone service possible,
    without actually being part of the network. These include the costs of computers,
    desks, buildings, vehicles, tools, and other non-network assets. Under FCC rules,
    these costs are treated as common and are recovered through a percentage markup on
    UNEs. See Local Competition Order ¶¶ 676, 682; see also 47 C.F.R. § 51.505(a).
    GSA expenses include the support costs a telephone company assumes when
    7
    Qwest challenges the Department’s expert’s testimony as lacking a proper
    evidentiary foundation. However, “administrative agencies are not restricted to rigid
    rules of evidence,” Whaley v. Gardner, 
    374 F.2d 9
    , 11 (8th Cir. 1967), and Qwest’s
    reliance upon inapposite case law is not applicable to our determination.
    -16-
    delivering service to both retail and wholesale customers. However, state public
    utilities commissions may not set UNE rates that include retail-only GSA costs
    because CLECs do not utilize an ILEC’s retail support services to provide telephone
    service to their own customers. See 47 C.F.R. § 51.505(c)(2)(ii), (d)(2). Therefore,
    MPUC was required under the FCC’s pricing rules to calculate the GSA expenses that
    an efficient forward-looking carrier would incur in the wholesale provision of UNEs.
    See 
    id. MPUC based
    GSA costs on the HAI Model proposed by AT&T/MCI. Under
    the HAI Model, GSA expenses are adjusted through two allocation factors that
    remove retail-only costs. Qwest argues that the HAI Model’s calculation of GSA
    expenses already allocates to Qwest’s retail operations an appropriate share of costs,
    and therefore the further adjustment under the allocators was unnecessary. Qwest also
    claims there is a lack of evidence explaining the methodology used to remove retail
    costs under the allocation factors.8
    While Qwest objects to the evidentiary support given to the HAI Model and the
    allocation factors, at its heart, Qwest’s argument focuses on its disagreement with the
    methodology chosen to remove retail costs. Qwest argues that the preadjusted GSA
    costs allocated an appropriate share of such costs to Qwest’s retail operations, and that
    further reduction under the allocators would result in Qwest’s retail operations bearing
    a disproportionate share of GSA costs. Given that Qwest’s retail operations should
    8
    In addition, Qwest asserts that the adoption of low GSA expenses for
    computers, which would compensate Qwest for only 23% of its actual computer costs,
    is inconsistent with an earlier determination that Qwest’s operations would become
    increasingly automated. However, as stated above, it is not necessarily relevant that
    Qwest’s actual embedded costs are different than those an efficient forward-looking
    network would acquire. See 47 C.F.R. § 51.505(d)(1). Moreover, Qwest failed to
    provide evidentiary support for its claim that MPUC’s determinations on computer
    costs are contradictory.
    -17-
    not merely be bearing a share of the retail GSA costs, but rather all of Qwest’s retail
    costs, see 47 C.F.R. § 51.505(c)(2)(ii), (d)(2), we cannot see how MPUC erred in
    relying upon expert testimony that the allocators were necessary to remove retail GSA
    costs.
    Qwest argues that there was insufficient explanation of the allocator
    methodology. However, Qwest’s expert challenged the allocators in a sophisticated
    manner, suggesting that Qwest understood the HAI Model’s methodology, and merely
    disagreed with it. While the ALJ and MPUC could have provided more detail in
    explaining their decision to adopt the HAI Model, they were not arbitrary and
    capricious merely because they chose the explanation and methodology of one expert
    over another.
    Qwest argues that the Wireline Competition Bureau rejected a similar
    secondary adjustment in the Virginia arbitration. See Virginia Arbitration Order ¶
    151. However, the Virginia arbitration adopted a different cost model than the HAI
    Model adopted by MPUC. The Bureau rejected the inclusion of a secondary
    adjustment that removed costs associated with special access and toll in the universal
    service support context because there was nothing to indicate that this adjustment
    correlated to a reduction in retail expenses in the GSA context. 
    Id. Relevant to
    the
    HAI Model, however, the ALJ noted that the model was previously adopted by MPUC
    in another proceeding and that Qwest presented its same objections to two other state
    public utilities commissions, both of which accepted the HAI Model as properly
    excluding retail GSA expenses.
    Therefore, we conclude that MPUC was not arbitrary and capricious in its
    adoption of the cost models relevant to the present case.
    -18-
    IV.
    For the foregoing reasons, we affirm the decision of the district court.
    ______________________________
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