Elizabeth Louise Handley v. Marian C. Bloss ( 2010 )


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  •       TEXAS COURT OF APPEALS, THIRD DISTRICT, AT AUSTIN
    NO. 03-06-00691-CV
    The Cities of Allen, Argyle, Arlington, Bedford, Brownwood, Burkburnett, Burleson,
    Caddo Mills, Canyon, Carrollton, Cedar Hill, Clyde, College Station, Corral City,
    Crandall, Dimmitt, Eastland, Everman, Farmers Branch, Fate, Friona, Frisco, Grapevine,
    Haltom City, Harker Heights, Hereford, Highland Park, Honey Grove, Hurst, Irving,
    Kaufman, Keene, Keller, Killeen, Lake Worth, Lancaster, Lewisville, Mansfield,
    Midlothian, Parker, Ponder, Red Oak, Snyder, Stamford, Sulphur Springs, The Colony,
    Tyler, Wellman, Westlake and Wylie, Texas; and the City of Longview, Appellants
    v.
    Railroad Commission of Texas; CenterPoint Energy Resources Corporation; Atmos
    Energy Corporation; and Texas Gas Services Company, a Division of Oneok, Inc.,
    Appellees
    FROM THE DISTRICT COURT OF TRAVIS COUNTY, 53RD JUDICIAL DISTRICT
    NO. D-1-GV-05-005221, HONORABLE GISELA D. TRIANA-DOYAL, JUDGE PRESIDING
    OPINION
    Fifty-one Texas cities1 (collectively, “the Cities”) brought a declaratory-judgment
    action against the Railroad Commission (“the Commission”), challenging the validity of
    1
    The cities of Allen, Argyle, Arlington, Bedford, Brownwood, Burkburnett, Burleson,
    Caddo Mills, Canyon, Carrollton, Cedar Hill, Clyde, College Station, Corral City, Crandall, Dimmitt,
    Eastland, Everman, Farmers Branch, Fate, Friona, Frisco, Grapevine, Haltom City, Harker Heights,
    Hereford, Highland Park, Honey Grove, Hurst, Irving, Kaufman, Keene, Keller, Killeen, Lake
    Worth, Lancaster, Lewisville, Mansfield, Midlothian, Parker, Ponder, Red Oak, Snyder, Stamford,
    Sulphur Springs, The Colony, Tyler, Wellman, Westlake and Wylie, Texas, and the City of
    Longview. The municipal plaintiffs, other than the City of Longview, participated in the underlying
    litigation as a coalition of cities, referring to themselves as “the Cities of Allen, et al.” The City of
    Longview acted as a separate party and filed a separate notice of appeal.
    Commission Rule 7.7101. See 16 Tex. Admin. Code § 7.7101 (2009) (Tex. R.R. Comm’n, Interim
    Rate Adjustments); see also Tex. Gov’t Code Ann. § 2001.038 (West 2008) (allowing parties to
    challenge validity of agency rule by declaratory-judgment action). CenterPoint Energy Resources
    Corporation (“CenterPoint”), Atmos Energy Corporation (“Atmos”), and Texas Gas Services
    Company (“Texas Gas”) intervened in support of the validity of the Commission’s rule. The trial
    court issued a final judgment denying the Cities’ request for declaratory relief, but issued findings
    of fact and conclusions of law stating that certain subsections of the Commission’s rule were void.
    We affirm the judgment of the trial court.
    BACKGROUND
    In 2003, the Texas Legislature amended the Gas Utility Regulatory Act, Tex. Util.
    Code Ann. §§ 101.001-105.051 (West 2007 & Supp. 2009), to allow gas utilities an opportunity to
    recover a return on capital expenditures made during the interim period between rate cases filed
    pursuant to subchapter C of chapter 104 of the utilities code. See Act of May 16, 2003, 78th Leg.,
    R.S., ch. 938, § 1, 2003 Tex. Gen. Laws 2801 (codified at Tex. Util. Code Ann. § 104.301); see also
    Tex. Util. Code Ann. §§ 104.101-.112 (West 2007) (setting forth procedures allowing regulated
    utilities to seek approval to change rates, referred to by parties as subchapter C rate cases). Under
    section 104.301, a gas utility may file a tariff or rate schedule providing for an interim rate
    adjustment with the applicable regulatory authority within two years of the utility’s last subchapter
    C rate case.   See Tex. Util. Code Ann. § 104.301(a) (West 2007).2             The parties refer to
    2
    Under the Gas Utility Regulatory Act, Texas municipalities share responsibility for
    regulating the State’s gas utility rates with the Commission. See Tex. Util. Code Ann. §§ 102.001,
    103.001 (West 2007). While municipalities may elect to delegate their regulatory responsibilities
    2
    section 104.301 as the “GRIP statute,” with GRIP being an acronym for “Gas Reliability
    Infrastructure Program.”3
    The GRIP statute provides, in relevant part:
    A gas utility that has filed a rate case under Subchapter C within the preceding two
    years may file with the regulatory authority a tariff or rate schedule that provides for
    an interim adjustment in the utility’s monthly customer charge or initial block rate
    to recover the cost of changes in the investment in service for gas utility services.
    
    Id. This tariff
    or rate schedule must be filed at least 60 days before the proposed implementation
    date of the new rates. 
    Id. During this
    60-day period, the municipality may suspend implementation
    of the new rates for up to 45 days. 
    Id. The amount
    of the interim rate adjustment allowed under the
    GRIP statute is based on values associated with the utility’s return on investment, depreciation
    expenses, ad valorem taxes, revenue-related taxes, and incremental federal income taxes. 
    Id. § 104.301(d).
    The GRIP statute indicates that the reasonableness and prudence of the investments
    in service recovered by an interim rate adjustment will be subject to review in the utility’s next
    subchapter C rate case. See 
    id. § 104.301(a).
    Specifically, the statute provides that once a final order
    has been issued in a subchapter C rate case filed after the implementation of an interim rate
    adjustment, any change in investment that was included in the interim adjustment is “no longer
    subject to subsequent review for reasonableness or prudence.” 
    Id. Importantly, the
    statute also
    to the Commission, see 
    id. § 103.003
    (West 2007), the Cities have not done so, and remain
    responsible for regulating utility rates within their boundaries.
    3
    While the phrase “Gas Reliability Infrastructure Program” and the acronym “GRIP” do not
    appear in the applicable statutes or administrative rules, for purposes of this opinion we will adopt
    the terminology used by the parties and refer to section 104.301(a) as the “GRIP statute.”
    3
    provides that until the issuance of a final order in the utility’s next rate case, “all amounts collected
    under the tariff or rate schedule before the filing of the rate case are subject to refund.” 
    Id. Any utility
    that implements an interim rate adjustment is required to file a subchapter C rate case no later
    than 180 days after the fifth anniversary of the date its interim rate became effective. 
    Id. § 104.301(h).
    Alternatively, the regulatory authority itself may instigate a rate case at any time to
    review the reasonableness of the utility’s rates. 
    Id. § 104.301(i);
    see also 
    id. § 104.151
    (West 2007).
    In response to the GRIP statute, the Commission adopted Rule 7.7101, referred to by
    the parties as the “GRIP rule.” See 16 Tex. Admin. Code § 7.7101. The GRIP rule, which sets forth
    the substantive and procedural requirements for obtaining an interim rate adjustment, provides that
    the director of the Commission may reject any GRIP application that “does not substantially comply
    with the requirements of this section.” See 
    id. § 7.7101(a).4
    The rule goes on to describe the
    required contents of a GRIP application, including an annual project report and an annual earnings
    monitoring report, and provides the methodology to be used in calculating the interim rate
    adjustment. 
    Id. § 7.7101(c),
    (f). Consistent with the GRIP statute, the rule provides that during the
    utility’s next rate case, the factors used to calculate the interim rate adjustment “shall be fully subject
    to review for reasonableness and prudence,” 
    id. § 7.7101(j),
    and until the rate case has been
    concluded, all amounts collected under the adjusted rate schedule are subject to refund. 
    Id. § 7.7101(i).
    4
    The word “application” does not actually appear in the GRIP statute, but appears only in
    the GRIP rule and in some of the parties’ briefs to describe the filing of an interim tariff or rate
    schedule. Our use of the word “application” in this context should not be construed to imply that
    a substantive review of a utility’s GRIP filing is required.
    4
    The GRIP rule also describes the procedure for reviewing a utility’s GRIP filing,
    stating that the director of the Commission is required to ensure that such filings are reviewed for
    compliance with the GRIP statute and rule. 
    Id. § 7.7101(g).
    Upon completion of the review, the
    director’s recommendation regarding approval or rejection of the filing is submitted to the
    Commission for decision. 
    Id. The GRIP
    rule does not provide for an adjudicatory hearing before
    the Commission on contested matters related to the GRIP filing, nor does it specifically provide for
    any involvement from the municipality having jurisdiction over the utility’s rates.
    After the GRIP statute and rule were adopted, certain utilities filed applications for
    interim rate adjustments with the Cities. The Cities denied the applications, and the utilities
    appealed to the Commission. The Cities then requested adjudicative hearings at the Commission
    on issues related to the applications, but the Commission refused, taking the position that the GRIP
    statute and rule did not provide for any such hearing. The Commission ultimately granted the
    utilities’ applications for interim rate adjustments.
    The Cities filed a declaratory-judgment action, seeking a declaration that the GRIP
    rule is void to the extent it prohibits them from intervening and obtaining an evidentiary hearing on
    appeals to the Commission from denials of GRIP filings. CenterPoint, Atmos, and Texas Gas
    intervened in support of the GRIP rule. The trial court concluded that the Cities were not entitled
    to the declaratory relief sought, and issued a take-nothing judgment. The trial court also issued
    findings of fact and conclusions of law, stating that the Cities have no authority to deny a utility’s
    GRIP application unless it fails to comply with the statute and that utilities have no right to appeal
    a City’s improper denial of a GRIP application to the Commission. In other words, the trial court’s
    5
    conclusions of law suggest that the Cities are limited to conducting a ministerial review of GRIP
    applications, but in the event that the Cities do deny an application for failure to comply with the
    statute, no appeal may be taken to the Commission.5 Needless to say, if no appeal to the
    Commission is available, then the Cities have no right to intervene and participate in an adjudicative
    hearing at the Commission.
    On appeal, the Cities argue that the trial court erred in denying its requested
    declaratory relief because the Commission exceeded its authority in adopting the GRIP rule and
    denying municipalities the opportunity for an adjudicatory hearing on contested matters related to
    GRIP applications.6 The Cities take the position that the Commission may conduct an appellate
    review of municipal denials of GRIP applications, but that the Commission must also allow the
    5
    The trial court also concluded that the Commission exceeded its authority by enacting
    subsections (g)(2)(B) and (g)(2)(C) of the GRIP rule, which allow the director to recommend denial
    or partial denial of a utility’s GRIP application, and that those provisions are therefore void. See 16
    Tex. Admin. Code § 7.7101(g)(2)(B), (C) (2009) (Tex. R.R. Comm’n, Interim Rate Adjustments).
    The trial court further concluded that the Commission “does not have the authority to apply its Rule
    7.7101 to the action of a city.” Presumably, this means that when a municipality is the appropriate
    regulatory authority with which to file a GRIP tariff or rate schedule, Rule 7.7101 does not apply and
    no additional action by the Commission is contemplated or authorized.
    6
    We reject the contention, raised by CenterPoint and Texas Gas, that the City of Longview
    is precluded from challenging the trial court’s judgment under the “invited error” doctrine. While
    the City of Longview requested in the trial court that the validity of the GRIP rule be resolved in the
    separate suits for judicial review of the Commission’s final orders on the individual GRIP
    applications, this request does not rise to the level of invited error. See In re Department of Family
    & Protective Servs., 
    273 S.W.3d 637
    , 646 (Tex. 2009) (stating that invited error doctrine applies to
    situations where party requests court to make specific ruling, then complains of that ruling on
    appeal). The City of Longview did not request the ruling that it now complains of on appeal—that
    the Cities are not entitled to an adjudicative hearing at the Commission on contested issues related
    to GRIP filings. We do, however, decline to reach the City of Longview’s appellate arguments to
    the extent they relate specifically to the GRIP filing of Atmos, as those complaints are not properly
    before us in a rule challenge under government code section 2001.038. See Tex. Gov. Code Ann.
    § 2001.038 (West 2008).
    6
    affected municipality to intervene and obtain an evidentiary hearing on contested issues relating to
    the application.
    CenterPoint, Atmos, and Texas Gas argue that the trial court was correct in
    determining that the Cities are not entitled to an adjudicatory hearing in appeals to the Commission
    from denials of GRIP applications. They contend, however, that the Commission does have
    appellate authority over a municipality’s denial of a GRIP application, that the portions of the GRIP
    rule allowing the director to recommend denial or partial denial of an application are valid, and that
    the GRIP rule is applicable even when the regulatory authority is a municipality.
    Finally, the Commission takes the position that the trial court was correct in
    concluding that appellate review—and by extension, an adjudicative hearing—is not available in
    connection with a municipality’s denial of a GRIP application, and that the GRIP rule does not apply
    when the applicable regulatory authority is a municipality. The Commission argues, however, that
    the trial court erred in finding subsections g(2)(B) and g(2)(C) of the GRIP rule, allowing the director
    to recommend denial or partial denial of a GRIP application, to be void. The Commission asserts
    that if it has the authority to review a GRIP application for compliance with the statute, it must also
    have the authority to deny the application for failure to comply.
    STANDARD OF REVIEW
    This appeal turns solely on issues of statutory construction. Statutory construction
    is a matter of law, subject to de novo review. City of Rockwall v. Hughes, 
    246 S.W.3d 621
    , 625
    (Tex. 2008). “Construction of a statute by the administrative agency charged with its enforcement
    is entitled to serious consideration, so long as the construction is reasonable and does not contradict
    7
    the plain language of the statute.” Tarrant Appraisal Dist. v. Moore, 
    845 S.W.2d 820
    , 823
    (Tex. 1993). We also give great weight to the agency’s interpretation of its own rules and
    regulations, limiting our consideration to whether the interpretation is plainly erroneous or
    inconsistent with the plain language of the rule. Public Util. Comm’n v. Gulf States Utils. Co.,
    
    809 S.W.2d 201
    , 207 (Tex. 1991).
    DISCUSSION
    The primary question before us on appeal is whether the trial court erred in denying
    the Cities’ request for a declaration that the Commission exceeded its authority in enacting a rule that
    precludes the Cities from intervening and obtaining an adjudicative hearing on appeals to the
    Commission from municipal denials of GRIP filings.
    Although administrative rules are presumed valid, they may be found void if adopted
    without statutory authority. Texas Dep’t of Human Servs. v. Christian Care Ctrs, Inc., 
    826 S.W.2d 715
    , 720 (Tex. App.—Austin 1992, writ denied); see also Brown v. Humble Oil & Ref. Co.,
    
    87 S.W.2d 1069
    , 1070 (Tex. 1935). “The determining factor in this and other decisions of our courts
    dealing with the question of whether or not a particular administrative agency has exceeded its
    rule-making powers is that the rule’s provisions must be in harmony with the general objectives
    of the Act involved.” Gerst v. Oak Cliff Sav. & Loan Ass’n, 
    432 S.W.2d 701
    , 706 (Tex. 1968). A
    rule may not impose additional burdens, conditions, or restrictions that are inconsistent with the
    statutory provisions.    Hollywood Calling v. Public Util. Comm’n, 
    805 S.W.2d 618
    , 620
    (Tex. App.—Austin 1991, no writ).
    8
    Here, the Cities argue that the Commission exceeded its statutory authority in
    adopting the GRIP rule because it is contrary to provisions of the Gas Utility Regulatory Act
    allowing for hearings in contested case proceedings. See Tex. Util. Code Ann. § 102.006(a) (“The
    [Commission] by rule shall provide for administrative hearings in contested cases to be
    conducted . . . .”). The Commission counters that the review of a GRIP filing is simply a ministerial
    review for compliance with the statute, that this review does not represent a contested case
    proceeding, and that because the GRIP statute does not provide for an adjudicative hearing, no such
    hearing is available.
    In interpreting the GRIP statute, the trial court issued the following findings of fact:
    1.      The Texas Legislature did not intend to provide for a substantive review of
    the interim adjustment tariffs and rate schedules filed by utilities pursuant to
    Section 104.301 of the Texas Utilities Code [the GRIP statute], except for a
    ministerial review of the compliance with basic requirements set forth in that
    section.
    2.      The intent of the Texas Legislature was that regulatory authorities, either
    cities or the Railroad Commission of Texas, could contest such utility
    findings in a rate case filed under Subchapter C of the Texas Utilities Code
    following the filing of an adjusted tariff and/or following the annual
    recalculation of the adjusted tariff required by Section 104.301.
    We begin by noting that the trial court’s findings of fact are better characterized as
    conclusions of law. A trial court’s designation of items as findings of fact is not controlling on
    appeal. See Ray v. Farmers’ State Bank, 
    576 S.W.2d 607
    , 608 n.1 (Tex. 1979); Jensen v. Covington,
    
    234 S.W.3d 198
    , 205 (Tex. App.—Waco 2007, pet. denied). Because the task of ascertaining and
    giving effect to the legislature’s intent is a component of statutory construction, a matter of law
    9
    subject to de novo review, we will treat the findings quoted above as conclusions of law, and review
    them as such. See, e.g., Dallas County Cmty. College Dist. v. Bolton, 
    185 S.W.3d 868
    , 872
    (Tex. 2005) (“Statutory construction is a matter of law, which we review de novo. Our primary
    objective when construing a statute is to ascertain and give effect to the Legislature’s intent.”)
    (citation omitted); see also BMC Software Belgium, N.V. v. Marchand, 
    83 S.W.3d 789
    , 794
    (Tex. 2002) (“Appellate courts review a trial court’s conclusions of law as a legal question.”).7
    We note also that if “the reviewing court determines a conclusion of law is erroneous,
    but the trial court rendered the proper judgment, the erroneous conclusion of law does not require
    reversal.” BMC 
    Software, 83 S.W.3d at 794
    ; see also In re J.J.L.-P., 
    256 S.W.3d 363
    , 376 (Tex.
    App.—San Antonio 2008, no pet.) (observing that erroneous conclusions of law need not prompt
    reversal if judgment can be sustained on any legal theory supported by evidence). Therefore, if we
    determine that the trial court did not err in denying the Cities’ request for declaratory relief, we will
    affirm the judgment, even if we conclude that one or more of the trial court’s conclusions of law are
    erroneous.
    Legislative Intent in Enacting the GRIP Statute
    In finding that the Cities were not entitled to adjudicatory hearings at the Commission
    in connection with GRIP filings, the trial court concluded that the legislature intended to provide
    7
    Based on our determination that the trial court’s findings of fact are actually conclusions
    of law, we need not address the argument raised by the Commission, CenterPoint, and Texas Gas
    that because the Cities did not specifically challenge the sufficiency of the evidence to support the
    findings, they are binding for purposes of this appeal.
    10
    only a ministerial review of the filings until the utility’s next rate case, at which time a thorough
    review for reasonableness and prudence would be performed.
    To discern legislative intent, we look first to the statute’s plain language. Phillips
    v. Bramlett, 
    288 S.W.3d 876
    , 880 (Tex. 2009). Under the plain language of the GRIP statute, a
    utility that has filed a rate case within the preceding two years “may file with the regulatory authority
    a tariff or rate schedule that provides for an interim adjustment in the utility’s monthly customer
    charge or initial block rate to recover the cost of changes in the investment in service for gas utility
    services.” Tex. Util. Code Ann. § 104.301(a). The statute further provides that in the 60 days before
    the adjusted rate goes into effect, the regulatory authority may suspend the implementation of the
    adjusted rate for a period of up to 45 days. 
    Id. The statute
    does not, however, provide that the
    regulatory authority may deny the utility’s application for an interim rate adjustment. As previously
    discussed, the statute also provides that the components of the interim rate calculation are subject
    to a reasonableness review during the utility’s next rate case and that all amounts collected are
    subject to refund until the conclusion of the rate case, which must be filed no later than the 180th day
    after the fifth anniversary of the date on which the interim rates take effect. 
    Id. § 104.301(a),
    (h).
    Notably, the GRIP statute does not provide a mechanism for substantive review by
    the applicable regulatory authority at the time of the GRIP filing, nor does it provide for appellate
    review by the Commission. The Cities, however, urge that other provisions of the Gas Utility
    Regulatory Act, particularly the provision providing for administrative hearings in contested cases,
    should be read to apply to the GRIP statute as well. See Tex. Util. Code Ann. § 102.006(a). As the
    Cities accurately point out, legislative intent should be determined from the entire act, rather than
    11
    from isolated portions. See Jones v. Fowler, 
    696 S.W.2d 429
    , 432 (Tex. 1998). However, while it
    is true that section 102.006 provides for hearings in contested cases at the Commission, there is no
    indication that the legislature intended a utility’s GRIP filing to constitute a contested case. In fact,
    the language in the GRIP statute providing for a reasonableness review and refund, if necessary, as
    part of the utility’s next rate case indicates that the legislature intended to defer all substantive review
    of a utility’s GRIP filing, including the resolution of contested issues, until the next rate case. See
    Tex. Util. Code Ann. § 104.301(a). Therefore, we do not find the existence of section 102.006 to
    be particularly persuasive in the present case.
    When the plain language of a statute does not clearly convey the legislature’s intent,
    we may rely on additional construction aids, such as the objective of the law, the legislative history,
    the consequences of a particular construction, the administrative construction of the statute, and its
    caption or preamble. See Tex. Gov’t Code Ann. § 311.023 (West 2005); Galbraith Eng’g
    Consultants, Inc. v. Pochucha, 
    290 S.W.3d 863
    , 867-68 (Tex. 2009).
    Senate Bill 1271, the bill that enacted the GRIP statute, bears the caption, “An
    act relating to incentives to encourage gas utilities to invest in new infrastructure.” Act of
    May 16, 2003, 78th Leg., R.S., ch. 938, § 1, 2003 Tex. Gen. Laws 2801 (codified at Tex. Util. Code
    Ann. § 104.301). The House Bill Analysis states:
    Under their original jurisdiction, municipalities and the Railroad Commission
    regulate the rates of local distribution companies and pipelines, respectively. In
    setting rates, these regulators base those rates on the operating expenses of the
    utilities and a reasonable return on their investment in facilities. Rate [c]ases can
    cost $2-4 million to prosecute. If a utility makes an investment after it has prepared
    a rate case, it must wait until the next case to begin recovering on that investment.
    With continuing growth in Texas and recent emphasis on replacing facilities to
    12
    enhance safety, utilities face significant challenges in obtaining the capital necessary
    for these new investments. Under present law, this can only occur through a full rate
    case. This bill would permit the utility to begin recovery on new investments in the
    year following completion of construction. The bill provides monitoring
    mechanisms that would prevent utilities from earning more than allowed and would
    provide for periodic rate reviews.
    House Comm. on Regulated Indus., Bill Analysis, Tex. S.B. 1271, 78th Leg., R.S. (2003).8
    Similarly, the Senate Bill Analysis reads:
    Currently, if a utility makes an investment after it has prepared a rate case, it must
    wait until the next case to begin recovering on that investment. However, utilities
    are facing some challenges in obtaining the necessary capital for new investments to
    meet the continuing growth in Texas and to replace facilities to enhance safety. S.B.
    1271 permits utility companies to begin recovery on new investments in the year
    following completion of construction.
    Senate Comm. on Natural Res., Bill Analysis, Tex. S.B. 1271, 78th Leg., R.S. (2003).
    According to the House Research Organization, supporters of the bill asserted that
    “[t]his bill would streamline the regulatory process, allowing utilities to begin recovering their
    investments without lengthy and expensive rate cases. . . . By allowing a utility to begin recovering
    its investment immediately, the bill would create an incentive for investment in the state’s gas
    pipeline infrastructure.” House Research Organization, Bill Analysis, Tex. S.B. 1271, 78th Leg.,
    R.S., 3-4 (May 16, 2003). Opponents of the bill, on the other hand, stated, “Rate regulation is based
    8
    Presumably, the “monitoring mechanisms” and “periodic rate reviews” referenced in the
    bill analysis refer to ratepayer protections such as the annual recalculation of the interim rate
    adjustment, the reasonableness review and refund potential awaiting the utility in its next rate case,
    and the annual reports and earnings monitoring reports that the utility is required to file. See Tex.
    Util. Code Ann. § 104.301(a) (West 2007).
    13
    on a regulatory body’s comprehensively reviewing a utility’s costs and allowing the utility to earn
    a fair rate of return on its reasonable and necessary expenses. This bill would circumvent this
    process by allowing a utility to begin recovering for one rate component without full review of the
    utility’s costs.” 
    Id. at 5.
    Both the statements of the bill’s supporters and the complaints of the bill’s
    opponents seem to acknowledge that the GRIP statute does not allow for a full, substantive review
    of the interim rate adjustments until the utility’s next rate case.
    Finally, the transcript of the hearing before the House Committee on Regulated
    Industries indicates that when the bill was initially introduced, there was some concern regarding the
    ability of the Cities to question the reasonableness of the interim rate adjustments under the GRIP
    statute.9 At one point during the hearing, the committee chairman asked whether “there is some
    review by the city, for example, that can challenge whether or not that was reasonable or necessary
    or whatever the general words are that we use to look at the rate of return investments and things like
    that.” Hearings on Tex. H.B. 1942 Before the House Comm. on Regulated Indus., 78th Leg., R.S.
    14 (March 25, 2003). In response, Geoffrey Gay, representing a number of affected municipalities,
    testified, “My understanding . . . is that there is no prior approval in this bill that is a prospective type
    review from the Earnings Monitoring Reporting process. So my understanding would be a company
    comes in and files a tariff with a regulatory authority whether it be a city or the Railroad
    Commission. The tariff is automatically implemented a year later . . . .” 
    Id. at 15.10
    When asked
    9
    The trial court admitted the transcript of this hearing into evidence. The hearing pertains
    to House Bill 1942, the companion bill to Senate Bill 1271.
    10
    We note that Gay indicated on the record that he had not seen a copy of the committee
    substitute version of the bill until the day of the hearing, and when asked whether a rate adjustment
    would immediately go into effect at the time of filing, he stated, “It did under the original bill. I’ll
    14
    how a utility’s interim rate could be challenged, a representative from TXU responded that a “team
    of lawyers can come in and ask for a rate proceeding just like we do now” and the “interim rates
    would go into place subject to refund.” 
    Id. at 50.
    While the public hearing on House Bill 1942
    suggests some legislative concern regarding the municipalities’ participation in the GRIP process,
    the fact that the legislature passed the bill in the face of testimony regarding the lack of substantive
    review until the utility’s next rate case suggests that these concerns were assuaged, possibly by the
    number of ratepayer protections included in the bill.
    The aforementioned ratepayer protections further support the conclusion that the
    GRIP statute provides only for a ministerial review, with substantive issues to be deferred until the
    utility’s next rate case. As previously discussed, all amounts collected under the interim rate
    adjustments are subject to refund until the conclusion of the utility’s next rate case, which must be
    filed no later than the 180th day after the fifth anniversary of the effective date of the interim rates,
    and during which the interim rate calculations are subject to review for reasonableness and prudence.
    See Tex. Util. Code Ann. § 104.301(a). Furthermore, the amount of the adjustment “shall be
    recalculated on an annual basis in accordance with the [calculation methodology] requirements of
    Subsection (b)” of the statute. 
    Id. § 104.301(c);
    see also 
    id. § 104.301(b).
    Utilities seeking GRIP
    adjustments must file an annual report describing their investment projects completed and placed
    in service or retired or abandoned during the preceding calendar year, as well as an annual
    try to conclude whether the substitute does that.” Our quotation of Gay’s testimony is not meant to
    imply that he conceded anything with respect to the implications of the GRIP statute, but merely to
    point out the legislature’s awareness of the pertinent issues at the time it enacted the statute.
    15
    earnings monitoring report demonstrating their earnings during the preceding calendar year. 
    Id. § 104.301(e),
    (f).11
    Another ratepayer protection built into the GRIP process is the fact that a City is
    entitled to instigate the filing of a rate case at any time. See 
    id. § 104.301(i)
    (“This section does not
    limit the power of a regulatory authority under Section 104.151.”); see also 
    id. § 104.151
    (allowing
    regulatory authority to instigate rate case upon finding that utility’s existing rates “are unreasonable
    or in violation of law”). Therefore, if the City determines that a utility’s GRIP filings necessitate a
    review for reasonableness and prudence, the City is free to file a rate case, perform a thorough,
    substantive review of the components of the utility’s GRIP filing, and if necessary, order a refund
    of amounts collected under the interim rate. See 
    id. §§ 104.151,
    .301. Allowing a municipality to
    bring a substantive challenge to a utility’s GRIP filing first in an appeal to the Commission and then
    a second time during the utility’s next rate case is inconsistent with the legislature’s intent
    to streamline the interim rate adjustment process in order to encourage gas utility
    infrastructure investment.
    Finally, an agency’s interpretation of a statute it is charged with enforcing is entitled
    to deference so long as the agency’s interpretation is consistent with the language and purpose of the
    statute. See TXU Elec. Co. v. Public Util. Comm’n, 
    51 S.W.3d 275
    , 286 (Tex. 2001); Tarrant
    Appraisal 
    Dist., 845 S.W.2d at 823
    . Here, the Commission, the agency charged with enforcing the
    11
    In addition, if the utility’s earnings monitoring report indicates that it is earning a return
    on invested capital of more than 75 basis points above the return established under the rates it would
    be charging if not for the GRIP statute, the utility must file a statement with its report, giving the
    reasons why the rates are not unreasonable or in violation of law. Tex. Util. Code Ann.
    § 104.301(g).
    16
    Gas Utility Regulatory Act, interprets the statute to provide a streamlined process for utilities to
    qualify for interim rate adjustments, allowing for only a ministerial review of GRIP filings and
    precluding an adjudicative hearing at the Commission.             In adopting the GRIP rule, the
    Commission stated:
    While it is clear that there will not be the kind of review of the reasonableness or
    prudence of an investment that is typically done in a full rate case, the statute does
    not clearly spell out the type of review that the Commission must conduct for
    investment that is the subject of a proposed interim rate adjustment. . . . The
    Commission finds that [] implementing a process for reviewing interim rate
    adjustment applications without a hearing is in harmony with other aspects of Texas
    Utilities Code, 104.301. The statute provides for no evidentiary proceedings, nor
    does it appear to contemplate that the regulatory authority should do more than
    review the utility’s method of calculating the interim rate adjustment. The absence
    of due process requirements in [the GRIP statute] essentially means that all due
    process protections are deferred until the next full rate case, which must be filed no
    later than the fifth year.
    29 Tex. Reg. 11951 (2004). Because this interpretation is not inconsistent with the language and
    purpose of the statute, it is entitled to deference. See TXU Elec. 
    Co., 51 S.W.3d at 286
    ; Tarrant
    Appraisal 
    Dist., 845 S.W.2d at 823
    .
    In light of the GRIP statute’s legislative history, administrative construction, inherent
    ratepayer protections, and lack of express language providing for adjudicative hearings at the
    Commission, we conclude that the statute does not contemplate either adjudicative hearings or a
    substantive review at the time of the GRIP filing. Rather, the legislature intended to encourage
    investment in new infrastructure by creating a streamlined method of allowing utilities to
    immediately begin recovering on new investments without having to wait for the completion of a
    costly and time-consuming rate case. A ministerial review for compliance with the statute is all that
    17
    is required, as the Cities are entitled to a substantive review of the utility’s GRIP filing during the
    utility’s next rate case. On that basis, we hold that the trial court did not err in denying the Cities’
    request for declaratory relief.
    The Commission’s Appellate Authority
    The Cities also contend that the trial court erred in issuing conclusion of law number
    four, which states, “A utility does not have the authority to appeal an improper denial of a filing by
    a City to the Railroad Commission under Section 104.301 of the Texas Utilities Code because the
    Legislature did not provide an appellate mechanism in that section.” We note that the trial court also
    concluded—and we agree—that a municipality is not entitled to deny a utility’s GRIP filing except
    for failure to comply with the GRIP statute. It would appear, then, that the only circumstance under
    which the Commission could even attempt to exercise appellate authority over a denial of a GRIP
    filing would be if a municipality concludes that a GRIP filing failed to comply with the statutory
    requirements.      The result, if allowed, would essentially be a ministerial review of a
    ministerial review.
    Significantly, despite having initially exercised appellate jurisdiction over municipal
    denials of GRIP filings, the Commission’s position on appeal is that the trial court was correct in
    concluding that the Commission does not have appellate jurisdiction over a municipality’s denial
    of a GRIP filing.12 As previously stated, an agency’s interpretation of a statute it is charged with
    enforcing is entitled to deference so long as the agency’s interpretation is consistent with the
    12
    The utilities, on the other hand, take the position that an appeal to the Commission is
    available.
    18
    language and purpose of the statute. See TXU Elec. 
    Co., 51 S.W.3d at 286
    . Because the statute does
    not expressly provide for appellate authority by the Commission over a municipality’s denial of a
    GRIP filing, and because we have already determined that the legislature’s intent in passing the
    GRIP statute was to provide a streamlined and efficient process for allowing interim rate
    adjustments, we conclude that the Commission’s interpretation is consistent with the language and
    purpose of the statute. While the Commission generally exercises exclusive appellate jurisdiction
    to review orders of a municipality in the context of gas utility regulation, see Tex. Util. Code Ann.
    § 102.001(b) (West 2007), there is no indication that a municipality’s denial of a GRIP filing for
    failure to comply with the statutory requirements is considered “an order or ordinance of a
    municipality” as contemplated by section 102.001. On that basis, we hold that appellate review by
    the Commission is not available when a municipality denies a GRIP filing after conducting a
    ministerial review for compliance with the statute.
    Subsections 7.7101(g)(2)(B) and (g)(2)(C) of the GRIP Rule
    Finally, the City of Longview argues that conclusion of law number one, which
    provides, “The Railroad Commission exceeded its statutory authority by enacting subsections
    7.7101(g)(2)([B]) and (g)(2)([C]) of its Rule 7.7101 and those provisions are therefore void,” is
    inconsistent with the trial court’s judgment denying declaratory relief. Subsections 7.7101(g)(2)(B)
    and (g)(2)(C) allow the Commission to reject a GRIP filing in whole or in part. 16 Tex. Admin.
    Code § 7.7101(g)(2)(B), (g)(2)(C). While an erroneous conclusion of law need not mandate reversal
    if the trial court’s judgment is otherwise correct, see BMC 
    Software, 83 S.W.3d at 794
    , we note that
    in order to read the trial court’s conclusions of law in a consistent manner, it is necessary to assume
    19
    that in some cases, the Commission may reject a GRIP filing in whole or in part if it fails a
    “ministerial review of the compliance with basic requirements set forth in” the GRIP statute, as
    described in finding of fact number one. In certain areas, it is the Commission, rather than any
    municipality, that exercises regulatory authority over gas utility rates. See Tex. Util. Code Ann.
    § 102.001(a) (Commission has exclusive jurisdiction over rates and services of utilities distributing
    gas either outside boundaries of municipality or inside municipality that surrenders jurisdiction to
    Commission). In that context, the Commission would have the same authority to review GRIP
    filings for compliance with the statute that the municipalities have for rates within their jurisdiction.
    It logically follows that subsections 7.7101(g)(2)(B) and (g)(2)(C) would only be void to the extent
    the Commission attempted to reject a GRIP filing over which it holds regulatory authority for any
    reason other than failure to comply with the statutory requirements.
    Cross-Points of Error
    CenterPoint and Texas Gas raise a cross-point that the trial court erred in issuing
    conclusion of law number five, which states, “The Railroad Commission does not have the authority
    to apply its Rule 7.7101 to the action of a city.”13 This point of error was raised only by appellees,
    none of whom filed a notice of appeal in this case. See Tex. R. App. P. 25.1(c) (“The appellate court
    may not grant a party who does not file a notice of appeal more favorable relief than did the trial
    court except for just cause.”); see also Helton v. Railroad Comm’n of Tex., 
    126 S.W.3d 111
    , 119-120
    13
    CenterPoint and Texas Gas also raise cross-points that conclusions of law numbers one
    and four are erroneous, and the Commission raises its own cross-point that conclusion of law number
    one is incorrect. Because these points were also raised by the Cities, they have already been
    addressed.
    20
    (Tex. App.—Houston [1st Dist.] 2003, pet. denied) (observing that cross points seeking more relief
    than was granted in judgment require separate notice of appeal while cross points that merely present
    an alternative basis for affirming judgment do not). Because this cross-point does not merely present
    an alternative basis for affirming the judgment, but seeks a holding that the trial court erred in issuing
    one of its conclusions of law, we conclude that the cross-point is not properly before us in
    this appeal.
    CONCLUSION
    We affirm the trial court’s order denying the Cities’ request for declaratory relief.
    ___________________________________________
    Diane M. Henson, Justice
    Before Chief Justice Law, Justices Puryear and Henson
    Chief Justice Law not participating14
    Affirmed
    Filed: February 5, 2010
    14
    Because Chief Justice Law was originally assigned to author this opinion, authoring duties
    were reassigned as of November 6, 2009.
    21