Vista Health Plan v. HHS ( 2022 )


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  • Case: 20-50963     Document: 00516243790         Page: 1     Date Filed: 03/17/2022
    United States Court of Appeals
    for the Fifth Circuit                                  United States Court of Appeals
    Fifth Circuit
    FILED
    March 17, 2022
    No. 20-50963
    Lyle W. Cayce
    Clerk
    Vista Health Plan, Incorporated; Vista Service
    Corporation,
    Plaintiffs—Appellants,
    versus
    United States Department of Health and Human
    Services; Xavier Becerra, Secretary, U.S. Department of Health and
    Human Services; Centers for Medicare and Medicaid
    Services; Seema Verma, Administrator of the Centers for Medicare and
    Medicaid Services,
    Defendants—Appellees.
    Appeal from the United States District Court
    for the Western District of Texas
    USDC No. 1:18-CV-824
    Before Higginbotham, Stewart, and Wilson, Circuit Judges.
    Cory T. Wilson, Circuit Judge:
    The United States Department of Health and Human Services (HHS)
    implements a risk-adjustment program under the Patient Protection and
    Affordable Care Act (ACA) in states that choose not to implement the
    program themselves.       The risk-adjustment program is designed to
    redistribute actuarial risk among health insurance plans so that sicker-than-
    Case: 20-50963      Document: 00516243790          Page: 2   Date Filed: 03/17/2022
    No. 20-50963
    average individuals can obtain affordable healthcare. To effectuate the
    program, HHS created a three-step risk-adjustment methodology. In March
    2018, a district court in New Mexico vacated HHS’s risk-adjustment rules
    for benefit years 2014 through 2018 to the extent the rules relied on the third
    step of HHS’s methodology. In response, HHS stated that it would not
    collect or pay specified risk-adjustment amounts but would issue additional
    guidance in the near future. In July 2018, HHS announced that it would
    republish the previously adopted risk-adjustment rule for the 2017 benefit
    year. For the 2018 benefit year, HHS promulgated a new rule in December
    2018.
    Once the new rules were published, Vista Health Plan, Inc., a small
    health insurance company in Texas, was assessed risk-adjustment fees that
    exceeded its premium revenue, causing the company to cease operations.
    The company and its parent, Vista Service Corporation, (collectively, Vista)
    sued HHS, HHS Secretary Alex Azar, the Centers for Medicare and
    Medicaid Services (CMS), and CMS Administrator Seema Verma
    (collectively, the HHS Defendants), challenging the risk-adjustment
    program and the repromulgation of the 2017 and 2018 Final Rules. The
    district court granted summary judgment for the HHS Defendants on eight
    of nine claims asserted by Vista and remanded the only remaining claim to
    HHS. We affirm the court’s summary judgment in favor of the defendants.
    I.
    A.
    The underlying facts are undisputed. Among other provisions, the
    ACA prohibits insurers from denying coverage or charging higher premiums
    based on health status. See generally King v. Burwell, 
    576 U.S. 473
    , 479–84
    (2015) (summarizing the background and purpose of the ACA). Because
    sicker individuals generally incur higher costs for insurers, insurers are
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    disincentivized from enrolling such individuals without charging higher
    premiums. To counteract this, Congress enacted 
    42 U.S.C. § 18063
    , which
    directs HHS to establish a permanent risk-adjustment program.
    Under the risk-adjustment program, fees are assessed against plans
    with healthier-than-average enrollees in a given state, and then payments are
    made to plans with sicker-than-average enrollees in that state to redistribute
    actuarial risk.   Congress designed the risk-adjustment program to be
    administered by the States. Some states opted not to do so, and in those
    states, Congress directed HHS to operate the program.              
    42 U.S.C. § 18041
    (c)(1)(B)(ii).
    To assess actuarial risk, Congress directed HHS to “establish criteria
    and methods” for the risk-adjustment program. 
    42 U.S.C. § 18063
    (b). In
    turn, HHS created a three-step risk-adjustment methodology: First, for each
    individual enrolled in an insurer’s plan, an actuarial risk score is computed
    using demographic and diagnostic data to determine the predicted cost of
    insuring that enrollee. 
    78 Fed. Reg. 15,410
    , 15,419 (Mar. 11, 2013). Second,
    the risk scores for each enrollee in a plan are aggregated to determine the
    plan’s average risk score. Id. at 15,432. Third, a plan’s risk score is
    multiplied by the statewide average premium, yielding the dollar amount that
    a given insurer will pay as a charge or receive as a payment, for that plan for
    that year. See id. at 15,430–34; N.M. Health Connections v. U.S. Dep’t of
    Health & Hum. Servs., 
    946 F.3d 1138
    , 1148–50 (5th Cir. 2019) (detailing the
    risk adjustment program methodology). HHS has used an annual rulemaking
    process to refine its risk-adjustment rules, but it has not reconsidered its
    overarching methodology anew each year.
    In March 2018, a district court in New Mexico vacated HHS’s risk-
    adjustment rules for benefit years 2014 through 2018 to the extent they relied
    on the statewide average premium (the third step of the risk-adjustment
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    methodology). See Minuteman Health, Inc. v. U.S. Dep’t of Health & Hum.
    Servs., 
    312 F. Supp. 3d 1164
    , 1207–12 (D.N.M. 2018), rev’d, 
    946 F.3d 1138
    (10th Cir. 2019). Just prior, in January 2018, a district court in Massachusetts
    ruled in favor of HHS on the same issue. See Minuteman Health, Inc. v. U.S.
    Dep’t of Health & Hum. Servs., 
    291 F. Supp. 3d 174
    , 198–205 (D. Mass. 2018).
    Addressing the conflicting judgments, HHS issued a press release on
    July 7, 2018, advising insurers that “the New Mexico district court’s
    ruling . . . bar[red] [HHS] from collecting or making payments under the
    current methodology, which uses the statewide average premium.” Two
    days later, HHS stated it “w[ould] not collect or pay the specified amounts,”
    but it “w[ould] inform stakeholders of any update to the status of collections
    or payments at an appropriate future date.” HHS added that “[a]dditional
    guidance w[ould] be issued in the near future regarding 2017 benefit year
    appeals and reporting of risk adjustment transfer amounts by issuers.”
    Urged by members of Congress (among various other entities) “to act
    with the utmost urgency to resolve the $10.4 billion hold on the risk
    adjustment program,” HHS issued a memorandum on July 27, 2018, stating
    that it would republish the previously adopted risk-adjustment program rule
    for the 2017 benefit year. The republished rule “utilize[d] statewide average
    premium for the 2017 benefit year as set forth in the rules published on March
    23, 2012 . . . and March 8, 2016.” Three days later, HHS published the 2017
    Final Rule, which adopted “the HHS-operated risk adjustment methodology
    previously published at 81 [Fed. Reg.] 12204 for the 2017 benefit year with
    an additional explanation regarding the use of statewide average premium
    and the budget neutral nature of the program.” HHS clarified that the “rule
    d[id] not make any changes to the previously published HHS-operated risk
    adjustment methodology for the 2017 benefit year.” HHS did not follow the
    notice-and-public-comment procedures outlined in the Administrative
    Procedure Act (APA) when it republished the 2017 rule. See 
    5 U.S.C. § 553
    .
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    For the 2018 benefit year, HHS published a proposed rule on August
    10, 2018, following the APA’s notice-and-public-comment procedures. The
    2018 rule was finally promulgated on December 10, 2018. The 2018 Final
    Rule adopted “the same methodology that [HHS] had previously published
    for the 2018 benefit year.”
    B.
    Vista Health Plan, Inc., began as a small health maintenance
    organization that was approved by the Texas Department of Insurance (TDI)
    to enter the health insurance market in May 2016. Vista Health Plan, Inc.,
    and its parent company, Vista Service Corporation, sued the HHS
    Defendants on September 28, 2018. Vista challenged the promulgation of
    the 2017 and 2018 Final Rules, HHS’s calculation of Vista’s risk-adjustment
    charges, and the risk-adjustment program more generally. Vista contended
    that the charges assessed against it “far exceeded Vista’s gross receipts” for
    the 2017 and 2018 benefit years, which “caused Vista to be placed under
    supervision by [TDI],” and ultimately resulted in TDI directing Vista to
    cease “sell[ing] policies in 2019.”
    After filing an administrative record that included “the non-privileged
    administrative records of the rulemaking proceedings” for the 2017 and 2018
    Final Rules, the parties filed cross-motions for summary judgment. The
    district court granted the HHS Defendants’ motion for summary judgment
    on eight of nine claims alleged by Vista 1 and remanded Vista’s remaining
    1
    The district court “deduce[d] nine distinct claims against HHS” alleged in
    Vista’s somewhat scattershot complaint. Vista Health Plan, 
    2020 WL 6380206
    , at *4. In
    discerning Vista’s claims, the court noted that its review was limited “to those issues
    briefed” and that it would “not reach every allegation brought in Vista’s complaint.” 
    Id.
    Similarly, we limit our review to the five distinct issues Vista sufficiently identifies on
    appeal. See United States v. Sineneng-Smith, 
    140 S. Ct. 1575
    , 1579 (2020) (“[Courts] rely
    on the parties to frame the issues for decision . . . .”); see also Fed. R. App. P. 28(a)(8)(A)
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    procedural due process claim to HHS. Because Vista challenges the district
    court’s dismissal of only five of these claims, we limit the following
    discussion to those appealed claims.
    First, Vista argued that the 2017 and 2018 Final Rules were
    impermissibly retroactive. The district court disagreed, holding that the
    rules were not retroactive because they “simply reinstated the obligations all
    regulated entities had already anticipated and acted in reliance upon,” and
    did not “increase[] a party’s liability for past conduct, or impose[] new duties
    with respect to transactions already completed.” Vista Health Plan, Inc. v.
    U.S. Dep’t of Health & Human Servs., No. 1:18-CV-824, 
    2020 WL 6380206
    ,
    at *8 (W.D. Tex. Sept. 21, 2020) (quoting Landgraf v. USI Film Prods., 
    511 U.S. 244
    , 268 (1994)).
    Second, Vista contended that the 2017 Final Rule should be vacated
    for failing to comply with APA notice-and-comment procedures.                        The
    district court agreed that HHS was not entitled to a good-cause exception for
    its failure to comply with the procedures. 
    Id.
     at *9–10. However, the court
    determined that the error was harmless because “Vista fail[ed] to present
    cognizable prejudice.” Id. at *10; see United States v. Johnson, 
    632 F.3d 912
    ,
    930 (5th Cir. 2011).
    Third, Vista asserted that HHS’s creation of the risk-adjustment
    methodology—particularly the third step regarding the statewide average
    premium—was inconsistent with § 18063, or otherwise arbitrary and
    capricious, because “[t]here [was] no rational basis for a formula and
    methodology that results in such confiscatory assessments.” The district
    court disagreed, holding that
    (requiring the appellant to raise arguments with relevant “citations to the authorities and
    parts of the record on which the appellant relies”).
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    HHS’s interpretation of Section 18063 is entitled to Chevron
    deference because “Congress delegated authority to the
    agency generally to make rules carrying the force of law, and
    that the agency interpretation claiming deference was
    promulgated in . . . notice-and-comment rulemaking, or by
    some other indication of comparable congressional intent.”
    Vista Health Plan, 
    2020 WL 6380206
    , at *16 (quoting United States v. Mead
    Corp., 
    533 U.S. 218
    , 226–27 (2001)).
    Fourth, Vista argued that the rate adjustment charges lack a rational
    basis and have a disparate impact on small insurance companies like Vista,
    thus violating its equal protection rights. Vista also argued that its procedural
    due process rights were violated because it never received an evidentiary
    hearing to determine whether its actual risk supports the requirement to pay
    risk-adjustment charges. Vista asserted that it should have been given an
    agency adjudication on Vista’s actual risk.
    Applying rational basis review, the district court gave short shrift to
    Vista’s equal protection claim. Id. at *14. The court held that “small
    insurers are not an inherently suspect class, and the risk-adjustment program
    does not trammel fundamental rights.” Id. (citing Cornerstone Christian Sch.
    v. Univ. Interscholastic League, 
    563 F.3d 127
    , 139 (5th Cir. 2009)). As for
    Vista’s procedural due process claim, the district court found “a genuine
    dispute of material fact concerning Vista’s right to administrative appeal that
    is not adequately resolved by reference to the administrative record.” Id. at
    *15. Furthermore, it concluded that the parties should have addressed 
    45 C.F.R. § 156.1220
     (2016), which allows an issuer to “file a request for
    reconsideration concerning the amount of a risk-adjustment payment or
    charge if the amount in dispute exceeds one percent of the applicable charge
    and the request is filed ‘within 30 calendar days of the date of the notification
    under § 153.310(e).’” Id. at *14 (quoting 
    45 C.F.R. § 156.1220
    (a)(1)(ii)).
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    Because a request under § 156.1220(a)(1)(ii) must first be reviewed by a
    “CMS hearing officer,” and subsequently appealed to the “Administrator of
    CMS,” id. (quoting 
    45 C.F.R. § 156.1220
    (b)(1)–(2), (b)(3), (c)(2)) (internal
    quotation marks omitted), and because there was no record of whether
    Vista’s request for reconsideration was reviewed by a CMS hearing officer,
    the district court remanded the issue to HHS for determination, id. at *15.
    Finally, Vista argued that “HHS’s risk adjustment charges of over
    50% of premium revenue for 2017 and 57% for 2018 amount to a confiscatory
    regulatory taking.” The district court disagreed and concluded that “[t]his
    case does not present the classical taking in which the government directly
    appropriates private property for the government’s use. This case involves
    risk-adjustment payments and charges that are budget neutral and transfer
    funds between insurers.” Id. at *12.
    Vista now appeals as to each of these issues.
    II.
    As an initial matter, we must address Vista’s eleventh-hour
    contention that this court lacks jurisdiction over this appeal. Vista first raised
    the issue of jurisdiction in its reply brief; it then spent most of its time at oral
    argument discussing jurisdiction rather than the substantive issues it raised
    in its opening brief. To little avail—neither Vista, nor the HHS Defendants
    for their part, could clearly explain why this court lacks jurisdiction, or has it.
    The question revolves around whether the district court’s “Final Judgment”
    was truly an appealable judgment, i.e., disposing of all claims, because the
    district court denied summary judgment as to Vista’s procedural due process
    claim but then remanded it to HHS. At the very least, the HHS Defendants
    correctly stated at oral argument that this case “is a complete jumble that has
    landed in [our] laps.” Cutting through the knot, we conclude that we have
    jurisdiction to decide this appeal.
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    This court is vested with “jurisdiction of appeals from all final
    decisions of the district courts of the United States.” 
    28 U.S.C. § 1291
    .
    “[W]hether a ruling is ‘final’ within the meaning of § 1291 is frequently so
    close a question that decision of that issue either way can be supported with
    equally forceful arguments . . . .” Gillespie v. U.S. Steel Corp., 
    379 U.S. 148
    ,
    152 (1964). Accordingly, the Supreme Court “has held that the requirement
    of finality is to be given a ‘practical rather than a technical construction.’”
    
    Id.
     (quoting Cohen v. Beneficial Indus. Loan Corp., 
    337 U.S. 541
    , 546 (1949));
    see also Brown Shoe Co. v. United States, 
    370 U.S. 294
    , 306 (1962) (“A
    pragmatic approach to the question of finality has been considered essential
    to the achievement of the ‘just, speedy, and inexpensive determination of
    every action’ . . . .” (quoting Fed. R. Civ. P. 1)).
    “Generally, district court orders remanding to an administrative
    agency are not final orders.” Adkins v. Silverman, 
    899 F.3d 395
    , 400 (5th Cir.
    2018). However, “[i]t is less clear . . . whether that ‘general rule’ applies . . .
    where the [c]ourt has expressly entered final judgment, . . . has not retained
    jurisdiction, [and] has not issued any instructions to [the agency] regarding
    the remand.” Matson Navigation Co. v. U.S. Dep’t of Transp., 
    480 F. Supp. 3d 282
    , 286 (D.D.C. 2020).
    We face such a case here. The district court granted summary
    judgment for the HHS Defendants on all but one of Vista’s claims. And
    though it denied summary judgment as to Vista’s remaining procedural due
    process claim, the court also remanded that claim to HHS for further
    proceedings—a ruling that Vista does not contest on appeal. 2 The district
    2
    Because Vista did not appeal the district court’s remand of its procedural due
    process claim, that claim is not properly before us. The HHS Defendants invite this court
    to take judicial notice of two letters HHS sent to Vista, on November 12, 2019, and July 19,
    2021, that purportedly address Vista’s procedural due process claim after remand to the
    agency. The motion was not contested by Vista. Nevertheless, we decline the HHS
    9
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    court explicitly stated in its Final Judgment that “nothing remains to
    resolve” and that “the case is hereby CLOSED.” Accordingly, the court’s
    ruling “end[ed] the litigation on the merits and [left] nothing for the court to
    do but execute the judgment.” Lewis v. E.I. Du Pont De Nemours & Co., 
    183 F.2d 29
    , 31 (5th Cir. 1950); see also United Steelworkers of Am. Local 1913 v.
    Union R.R., 
    648 F.2d 905
    , 909 (3d Cir. 1981) (“[W]hen a district court’s
    order can be characterized as a final disposition of the present litigation . . . ,
    we have recognized that exercise of appellate jurisdiction under section 1291
    may be appropriate.”). The upshot is that the district court’s order is an
    appealable final judgment. Thus satisfied of jurisdiction, we proceed to the
    merits of Vista’s claims.
    III.
    “This court reviews a grant of summary judgment de novo, applying
    the same standard to review the agency’s decision that the district court
    used.” Baylor Cnty. Hosp. Dist. v. Price, 
    850 F.3d 257
    , 261 (5th Cir. 2017).
    Vista raises five distinct issues on appeal: (A) whether the district court erred
    in determining that HHS’s adoption of the 2017 and 2018 risk-adjustment
    transfer rules was not impermissibly retroactive; (B) whether the district
    court erred in applying the “harmless error” exception to HHS’s APA
    notice-and-comment rule making violations; (C) whether the administrative
    record was deficient, rendering summary judgment on Vista’s equal
    protection, regulatory taking, and arbitrary-and-capricious claims erroneous;
    (D) whether the district court erred in concluding that HHS is entitled to
    Defendants’ invitation, as the agency’s further actions regarding Vista’s claim should be
    litigated before the agency and appealed to the district court before any appeal to this court.
    And to be clear, we express no opinion on the viability or merits of Vista’s claim post-
    remand to HHS. The matter is simply not before this court.
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    Chevron deference 3 in its interpretation and implementation of 
    42 U.S.C. § 18063
    ; and (E) whether the district court erred in ruling sua sponte on
    Vista’s regulatory taking claim without providing notice of its intent to do so.
    We address each issue in turn.
    A.
    Vista argues that the 2017 and 2018 Final Rules were improperly
    retroactive in their reach. Vista asserts that the district court erroneously
    applied Landgraf v. USI Film Products, 
    511 U.S. 244
     (1994), instead of Bowen
    v. Georgetown University Hospital, 
    488 U.S. 204
     (1988), in its retroactivity
    analysis and that under Bowen, the rules are improper. In the alternative,
    Vista also contends that the district court erred in concluding that the 2017
    and 2018 Final Rules were not retroactive under Landgraf. Neither of Vista’s
    arguments has merit.
    1.
    Landgraf established a two-step process for determining whether a
    statute is impermissibly retroactive. 
    511 U.S. at 280
    . The first step is “to
    determine whether Congress has expressly prescribed the statute’s proper
    reach.” 
    Id.
     If so, then the inquiry ends there. 
    Id.
     If not, then “the court
    must determine whether the new statute would have retroactive effect, i.e.,
    whether it would impair rights a party possessed when he acted, increase a
    party’s liability for past conduct, or impose new duties with respect to
    transactions already completed.”               
    Id.
        “If the statute would operate
    retroactively,” then “it does not govern.” Id.; see also Handley v. Chapman,
    
    587 F.3d 273
    , 283 (5th Cir. 2009) (“A new regulation has an impermissible
    retroactive effect where its application ‘would impair rights a party possessed
    3
    Chevron U.S.A., Inc. v. Nat. Res. Def. Council, Inc., 
    467 U.S. 837
     (1984).
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    when he acted, increase a party’s liability for past conduct, or impose new
    duties with respect to transactions already completed.’”) (quoting
    Fernandez–Vargas v. Gonzales, 
    548 U.S. 30
    , 37 (2006)); Vela v. City of Hous.,
    
    276 F.3d 659
    , 672–76 (5th Cir. 2001) (applying Landgraf).
    Vista argues that the Landgraf retroactivity framework applies only to
    statutes, not regulations, and urges the court to look to Bowen for guidance
    instead. Vista contends that under Bowen, the only inquiry is whether HHS
    has the statutory authority to promulgate retroactive rules, and here, it is
    undisputed that HHS lacks such authority. But Vista’s argument is belied by
    our analysis in Handley, where we applied Landgraf’s principles to evaluate
    whether an agency rule applied retroactively. See 
    587 F.3d at 283
    . In
    Handley, the court noted that “[n]ew procedural rules published by an
    agency may be made to apply . . . retroactively if injury or prejudice does not
    result[.]” 
    Id.
     (quoting Pac. Molasses Co. v. FTC, 
    356 F.2d 386
    , 390 n.10 (5th
    Cir. 1966)). The court went on to conclude that a regulation “virtually
    identical to its predecessor” did not “create an impermissible retroactive
    effect.” 
    Id.
     (citations omitted). Similarly, and with no contrary authority
    offered by Vista, Landgraf’s “retroactive effect” inquiry applies here just as
    it would if we were weighing a statute instead of the 2017 and 2018 Final
    Rules.
    2.
    Vista contends that even under Landgraf, the 2017 and 2018 Final
    Rules are impermissibly retroactive. This is so, Vista argues, for two reasons:
    Vista relied on the absence of rules in 2017 and 2018 to its detriment. And,
    when HHS repromulgated the rules, they increased Vista’s liability for past
    conduct, particularly because the rules were not promulgated until either
    after or toward the very end of their respective benefit years. We do not find
    either argument persuasive.
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    Vista argues that “[t]he new [rate adjustment transfer] rules increased
    Vista’s liability for 2017 and 2018” and “[t]he district court . . . should have
    considered the fact that Vista relied on the absence of the rules” in weighing
    whether the 2017 and 2018 Final Rules were retroactive. However, Vista
    failed to argue before the district court that it ought to consider Vista’s
    detrimental reliance in its retroactivity analysis. Therefore, the argument is
    forfeited, and we do not address it further. See Hardman v. Colvin, 
    820 F.3d 142
    , 152 (5th Cir. 2016) (“Arguments not raised in the district court cannot
    be asserted for the first time on appeal.”).
    Vista’s parallel argument that the 2017 and 2018 Final Rules were
    retroactive because they “increase[d] [Vista’s] liability for past conduct,”
    Landgraf, 
    511 U.S. at 280
    , is similarly ineffective. Handley held that a
    regulation did not have a retroactive effect where it was “virtually identical
    to its predecessor” and the “[a]pplication of the new regulation . . . would
    not deprive [the plaintiff] of any rights she previously possessed.” Handley,
    
    587 F.3d at 283
    . Vista concedes that “neither the New 2017 nor the New
    2018 final rule[] made major changes to the previously published HHS-
    operated risk-adjustment methodologies.” Indeed, the only difference in the
    new 2017 Final Rule is “an additional explanation regarding the use of
    statewide average premium and the budget neutral nature of the program.”
    Otherwise, the new 2017 rule “d[id] not make any changes to the previously
    published HHS-operated risk adjustment methodology for the 2017 benefit
    year.” The 2018 Final Rule is similar; it adopted the risk adjustment
    methodology previously “established in the final rules published in the
    March 23, 2012 and the December 22, 2016 editions of the Federal Register”
    in order to “protect consumers from the effects of adverse selection and
    premium increases that would result from issuer uncertainty” arising from
    the New Mexico judgment.
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    Additionally, in the wake of the New Mexico court’s ruling, HHS
    indicated neither that the rules would be cancelled permanently nor that it
    never intended to collect charges due for the 2017 and 2018 benefit years. In
    fact, HHS stated just the opposite. And despite the fact that HHS decided
    to reduce the adjusted statewide average premium for the 2018 and 2019
    benefit years, it decided to “maintain[] the definition of statewide average
    premium previously established for the 2017 benefit year . . . [t]o protect the
    settled expectations of issuers that ha[d] structured their pricing and offering
    decisions in reliance on the previously promulgated 2017 benefit year.” (Emphasis
    added.) Thus, HHS repromulgated the 2017 rule to ameliorate the very
    harms Vista alleges it suffered from the new rules, and Vista offers nothing
    to contradict this record.
    The only evidence Vista presents in support of its argument that the
    2017 and 2018 Final Rules retroactively changed its liability is an affidavit
    from Paul Tovar, the former chairman of Vista’s board of directors. Though
    self-serving evidence can certainly be “sufficient to create a genuine issue of
    material fact,” Guzman v. Allstate Assurance Co., 
    18 F.4th 157
    , 161 (5th Cir.
    2021), Tovar’s affidavit does not explain how the minor differences between
    the previous rate adjustment transfer rules and the 2017 and 2018 Final Rules
    “deprive[d] [Vista] of any rights [it] previously possessed,” see Handley, 
    587 F.3d at 283
    . The affidavit merely explains the financial circumstances that
    forced Vista to cease operations. It is therefore insufficient to create a
    genuine issue of material fact regarding the retroactive application of the 2017
    and 2018 Final Rules.
    As for Vista’s contention regarding the “late” promulgation of the
    rules, the Supreme Court has long recognized that “[a] statute does not
    operate ‘retrospectively’ merely because it is applied in a case arising from
    conduct antedating the statute’s enactment . . . or upsets expectations based
    in prior law.” Landgraf, 
    511 U.S. at 269
     (citation omitted). Thus, the mere
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    No. 20-50963
    fact that a statute, or, as here, an agency regulation, “draws upon antecedent
    facts for its operation” does not render it retroactive. 
    Id.
     at 270 n.24 (quoting
    Cox v. Hart, 
    260 U.S. 427
    , 435 (1922)). Instead, the relevant inquiry is
    whether the regulation is retroactive in effect. See id. at 280. Accordingly,
    Vista’s argument that the rules were impermissibly retroactive because they
    were promulgated either after or towards the very end of their respective
    benefit years is insufficient to establish improper retroactivity under our
    precedent. Summary judgment was appropriate on this claim.
    B.
    Vista next challenges HHS’s failure to follow the APA’s notice-and-
    comment procedures in promulgating the 2017 Final Rule. Vista contends
    that HHS’s lapse was not harmless, contrary to the district court’s
    conclusion, because Vista detrimentally relied on the absence of the 2017
    Final Rule to provide insurance at lower premiums during the year, which
    resulted in heavier rate adjustment transfer fees once the rule was
    repromulgated. The fees levied under the new rule, in turn, ultimately
    caused Vista to be placed under supervision by TDI.
    “We review an agency’s compliance with [5 U.S.C.] § 553’s notice-
    and-comment requirements under the arbitrary-and-capricious standard set
    forth in § 706(2)(A) of the APA . . . .” Handley, 
    587 F.3d at 281
    . That
    standard “provides that a ‘reviewing court shall hold unlawful and set aside
    agency action, findings, and conclusions found to be arbitrary, capricious, an
    abuse of discretion, or otherwise not in accordance with law.’” 
    Id.
     (quoting
    
    5 U.S.C. § 706
    (2)(A)). “This is a narrow and highly deferential standard.”
    
    Id.
    Under the APA, a notice of proposed rulemaking and an opportunity
    for public comment are required before issuing a regulation, but these
    procedures can be waived for good cause. See 
    5 U.S.C. § 553
    (b)(3)(B). Good
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    No. 20-50963
    cause requires an agency to “find[] (and incorporate[] the finding and a brief
    statement of reasons therefor in the rules issued) that notice and public
    procedure thereon are impracticable, unnecessary, or contrary to public
    interest.” 
    Id.
     Even if an agency does not meet the APA’s good cause
    exception, an agency’s action still may be upheld if any error was harmless.
    Johnson, 
    632 F.3d at 930
    . Determining whether an error was harmless is “a
    case-specific inquiry involving an estimation of the likelihood that the result
    would have been different.” 
    Id.
     (internal quotation marks omitted). “[A]
    court must determine whether it is clear that the lack of notice and comment
    did not prejudice the petitioner.” 
    Id. at 931
    . The petitioner generally is not
    prejudiced when the regulation “addresse[s] counter-arguments and set[s]
    forth the basis and purpose of the rule.” 
    Id.
    The district court held that the good faith exception did not apply to
    HHS’s “last minute” decision to promulgate the 2017 Final Rule without
    complying with APA procedures because “HHS had options to create
    certainty in the market” but failed to do so “until two months before invoices
    were to be sent out.” Vista Health Plan, 
    2020 WL 6380206
    , at *10. We need
    not determine whether the district court was correct in this assessment,
    however, because we agree with the court’s ultimate conclusion that any
    error was harmless due to the lack of prejudice to Vista.
    As Vista concedes, HHS’s 2017 Final Rule adopted essentially the
    same methodology that insurers relied on prior to the New Mexico lawsuit.
    HHS took this approach expressly to “protect the settled expectations of
    issuers that ha[d] structured their pricing and offering decisions in reliance
    on the previously promulgated 2017 benefit year methodology.” See Johnson,
    
    632 F.3d at 931
    . The very language of the rule thus belies Vista’s detrimental
    reliance argument. As the district court stated, it is apparent that “Vista’s
    injury lies with the risk-adjustment program’s existence, not HHS’s deficient
    16
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    No. 20-50963
    administrative procedure regarding the New 2017 Final rule.” Vista Health
    Plan, 
    2020 WL 6380206
    , at *11. 4
    C.
    Vista contends that the district court erred in granting the HHS
    Defendants summary judgment on Vista’s claims that HHS’s actions
    violated its equal protection rights, constituted a regulatory taking, and were
    arbitrary and capricious. Vista reasons that the court erroneously “bas[ed]
    its decision on the HHS’s existing rule making record” instead of an agency
    adjudication record; “[w]ithout that agency adjudication, there is no agency
    record upon which the court can resolve Vista’s challenges.” But Vista fails
    to present any relevant authority to support its position that an administrative
    adjudication was required for there to be an adequate administrative record
    to evaluate Vista’s claims. This issue is therefore abandoned. See Binh Hoa
    Le v. Exeter Fin. Corp., 
    990 F.3d 410
    , 414 (5th Cir. 2021) (“When a party
    pursues an argument on appeal but does not analyze relevant legal authority,
    the party abandons that argument.”); see also Rutherford v. Harris Cnty., 
    197 F.3d 173
    , 193 (5th Cir. 1999) (“[W]e will not consider an issue that is
    inadequately briefed.”).
    Even if not, Vista would be estopped from asserting a position
    inconsistent with its prior position before the district court. “Judicial
    estoppel is a common law doctrine that prevents a party from assuming
    inconsistent positions in litigation.” Allen v. C & H Distribs., L.L.C., 
    813 F.3d 566
    , 572 (5th Cir. 2015) (internal quotation and citation omitted).
    “Judicial estoppel has three elements: (1) The party against whom it is
    4
    Vista’s only other argument grounded on the APA’s notice-and-comment
    procedures concerns the timing of the rule’s enactment, but as described above, that
    argument is unpersuasive. See Landgraf, 
    511 U.S. at
    270 n.24.
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    sought has asserted a legal position that is plainly inconsistent with a prior
    position; (2) a court accepted the prior position; and (3) the party did not act
    inadvertently.” 
    Id.
     (internal quotation and citation omitted).
    All three elements for judicial estoppel are met here. First, on July 23,
    2019, Vista and the HHS Defendants filed a Joint Motion for Entry of
    Scheduling Order, in which the parties agreed that “this APA case is
    appropriately resolved by submission of an administrative record followed by
    cross-motions for summary judgment.” The parties filed the administrative
    record on September 17, 2019. Vista now argues that the administrative
    record was not adequate and that some of its claims may therefore not be
    resolved upon consideration of the record—an argument “plainly
    inconsistent with [Vista’s] prior position.” See Allen, 813 F.3d at 572.
    Second, the district court accepted Vista’s position taken in the Joint Motion
    for Entry of Scheduling Order by granting the joint motion and entering a
    scheduling order. In fact, the district court followed every step outlined in
    the parties’ proposed order, eventually granting HHS’s motion for summary
    judgment based on the administrative record filed with Vista’s consent.
    Finally, there is no indication that Vista acted inadvertently.        Vista is
    therefore judicially estopped from asserting on appeal that the administrative
    record it jointly agreed to submit (and submitted without objection) is now
    somehow inadequate to support the district court’s evaluation of Vista’s
    claims.
    D.
    Vista asserts that the district court erroneously held that HHS was
    entitled to Chevron deference in its interpretation and implementation of 
    42 U.S.C. § 18063
    . To determine whether HHS’s action exceeded its statutory
    authority under Chevron, this court conducts a two-step analysis. See Huawei
    Techs. USA, Inc. v. FCC, 
    2 F.4th 421
    , 433 (5th Cir. 2021). The first step is to
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    No. 20-50963
    “ask whether Congress has directly spoken to the precise question at issue,
    in which case [this court] must give effect to the unambiguously expressed
    intent of Congress and reverse an agency’s interpretation that fails to
    conform to the statutory text.” 
    Id.
     (quoting Alenco Commc’ns, Inc. v. FCC,
    
    201 F.3d 608
    , 617 (5th Cir. 2000)) (internal quotation marks omitted). “If
    the statute is silent or ambiguous as to the specific issue, [this court]
    proceed[s] to step two and ask[s] whether the agency’s answer is based on a
    permissible construction of the statute.” 
    Id.
     (quotation omitted). “If the
    agency’s construction is arbitrary, capricious, or manifestly contrary to the
    statute,” the court will reverse. 
    Id.
     (quotation omitted). But if “the
    implementing agency’s construction is reasonable,” the agency’s
    construction is entitled to deference. 
    Id.
     (quoting Acosta v. Hensel Phelps
    Constr. Co., 
    909 F.3d 723
    , 730 (5th Cir. 2018)) (internal quotation marks
    omitted).
    Vista does not cite to or analyze any case law, statute, or regulation in
    support of its argument that HHS is not entitled to Chevron deference in its
    interpretation of § 18063. Thus, this argument is likely abandoned. See Binh
    Hoa Le, 990 F.3d at 414; Fed. R. App. P. 28(a)(8)(A). Regardless, we
    agree with the district court that
    HHS’s interpretation of Section 18063 is entitled to Chevron
    deference because “Congress delegated authority to the
    agency generally to make rules carrying the force of law, and
    that the agency interpretation claiming deference was
    promulgated in . . . notice-and-comment rulemaking, or by
    some other indication of comparable congressional intent.”
    Mead Corp., 
    533 U.S. at
    226–27. Congress delegated
    development of the methodology to HHS, so the court adopts
    “a deferential standard of review” that gives considerable
    weight to HHS’s judgment. In fact, the substance of the
    mandate for HHS to develop the risk-adjustment methodology
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    No. 20-50963
    falls under a bullet point titled “In general.”        
    42 U.S.C. § 18063
    (a).
    Vista Health Plan, 
    2020 WL 6380206
    , at *16. This issue lacks merit.
    E.
    Finally, Vista asserts that it was error for the district court sua sponte
    to grant summary judgment for the HHS Defendants on Vista’s regulatory
    taking claim because the court did not “address[] the factual basis for” the
    claim. Once a court gives the parties notice and an opportunity “to respond,
    the court may: (1) grant summary judgment for a nonmovant; (2) grant the
    motion on grounds not raised by a party; or (3) consider summary judgment
    on its own after identifying for the parties material facts that may not be
    genuinely in dispute.” Fed. R. Civ. P. 56(f). This court strictly enforces
    the notice requirement. D’Onofrio v. Vacation Publ’ns, Inc., 
    888 F.3d 197
    ,
    210 (5th Cir. 2018).
    Before the district court, Vista explicitly stated that this “case is
    appropriately resolved by submission of an administrative record followed by
    cross-motions for summary judgment,” and, further, that “[i]f [the HHS
    Defendants] do not dispute” that “the [rate adjustment transfer rules] would
    take 50% of Vista’s gross receipts for 2017 and 57% of Vista’s gross receipts
    for 2018 and that the mere assertion of the [rate adjustment transfer rules]
    caused Vista’s shut down . . . , then the takings claim may be ripe for summary
    judgment.” The HHS Defendants did not dispute those facts, and the
    parties filed cross-motions for summary judgment.             By Vista’s own
    representation, then, the takings claim was ripe for summary judgment.
    Further, the HHS Defendants filed their Reply in support of summary
    judgment on May 22, 2020, and the district court did not grant summary
    judgment until September 21, 2020. Vista therefore knew that “the takings
    claim may be ripe for summary judgment” for approximately four months
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    No. 20-50963
    after the motions were fully briefed and said nothing about the evidence that
    it now contends is pertinent.
    Rather than considering the issue sua sponte, the district court
    considered Vista’s representation that the takings claim was ripe for
    summary judgment and ruled against Vista.           But even assuming that
    summary judgment was granted sua sponte, it was nevertheless proper
    because Vista had notice and opportunity to respond. Vista’s last-ditch effort
    to circumvent the district court’s ruling is unpersuasive; we find no
    reversible error.
    IV.
    To recap, we sort out the “complete jumble that has landed in [our]
    laps” in this case: Vista’s belated argument that we lack jurisdiction to
    consider this appeal is belied both by the district court’s order remanding
    Vista’s procedural due process claim to HHS and by Vista’s failure to raise
    any error in the court’s remand ruling. On the merits, the 2017 and 2018
    Final Rules adopted by HHS were not impermissibly retroactive under
    Landgraf. And HHS’s failure to follow the APA’s notice-and-comment
    procedures in its repromulgation of the 2017 Final Rule was at worst harmless
    error. The new rule actually maintained the settled expectations of insurers
    covered by the previous version of the rule. Vista’s other issues on appeal
    regarding the administrative record before the district court, Chevron
    deference as to HHS’s interpretation of the governing law, and the district
    court’s “sua sponte” summary judgment on Vista’s regulatory taking claim
    lack merit for the reasons discussed above.
    AFFIRMED.
    21