Lamar Central Outdoor, LLC v. Division of Hearings & Appeals ( 2019 )


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    2019 WI 109
    SUPREME COURT            OF   WISCONSIN
    CASE NO.:              2017AP1823
    COMPLETE TITLE:        Lamar Central Outdoor, LLC d/b/a Lamar
    Advertising of Central Wisconsin and TLC
    Properties, Inc.,
    Petitioners-Appellants-Petitioners,
    v.
    State of Wisconsin Division of Hearings &
    Appeals,
    Respondent-Respondent,
    State of Wisconsin Department of Transportation,
    Other Party.
    REVIEW OF DECISION OF THE COURT OF APPEALS
    Reported at 385 Wis. 2d 211,923 N.W.2d 168
    (2018 – unpublished)
    OPINION FILED:         December 19, 2019
    SUBMITTED ON BRIEFS:
    ORAL ARGUMENT:         September 4, 2019
    SOURCE OF APPEAL:
    COURT:              Circuit
    COUNTY:             Portage
    JUDGE:              John M. Counsell
    JUSTICES:
    KELLY, J., delivered the majority opinion of the Court, in which
    ROGGENSACK, C.J., ANN WALSH BRADLEY, ZIEGLER, REBECCA GRASSL
    BRADLEY, DALLET, and HAGEDORN, JJ., joined.
    NOT PARTICIPATING:
    ATTORNEYS:
    For the petitioners-appellants-petitioners, there were briefs
    filed by Thomas S. Hornig, Kraig A. Byron, and von Briesen & Roper,
    S.C., Madison. There was an oral argument by Thomas S. Hornig.
    For the respondent-respondent, there was a brief filed by
    Thomas C. Bellavia, assistant attorney general; with whom on the
    brief was Joshua L. Kaul, attorney general. There was an oral
    argument by Thomas C. Bellavia.
    There was an amicus curaie brief filed on behalf of Wisconsin
    Manufacturers   &   Commerce,   Midwest   Food   Products   Association,
    Outdoor Advertising Association of Wisconsin, Wisconsin Cheese
    Makers Association and Wisconsin Dairy Alliance by Robert I.
    Fassbender and Great Lakes Legal Foundation, Madison. There was an
    oral argument by Robert I. Fassbender.
    2
    
    2019 WI 109
                                                              NOTICE
    This opinion is subject to further
    editing and modification.   The final
    version will appear in the bound
    volume of the official reports.
    No.    2017AP1823
    (L.C. No.   2016CV196)
    STATE OF WISCONSIN                      :              IN SUPREME COURT
    Lamar Central Outdoor, LLC d/b/a Lamar
    Advertising of Central Wisconsin and TLC
    Properties, Inc.,
    Petitioners-Appellants-Petitioners,
    v.                                                        FILED
    State of Wisconsin Division of Hearings &                  DEC 19, 2019
    Appeals,
    Sheila T. Reiff
    Respondent-Respondent,                         Clerk of Supreme Court
    State of Wisconsin Department of
    Transportation,
    Other Party.
    KELLY, J., delivered the majority opinion of the Court, in which
    ROGGENSACK, C.J., ANN WALSH BRADLEY, ZIEGLER, REBECCA GRASSL
    BRADLEY, DALLET, and HAGEDORN, JJ., joined.
    REVIEW of a decision of the Court of Appeals.            Reversed and
    the cause is remanded to the circuit court.
    ¶1    DANIEL KELLY, J.   From time to time an administrative
    agency changes its interpretation of a statute in a manner that
    No.   2017AP1823
    adversely affects a regulated activity.     Here, an agency developed
    a new statutory interpretation that prohibited the owner of a
    roadside sign from remedying a modification that caused the sign
    to lose its "legal, nonconforming" status. In this case we address
    whether Wis. Stat. § 227.10(1)(2015-16)1 required the agency to
    promulgate a rule containing the new statutory interpretation
    before applying it against the sign owner.      We conclude that our
    statutes do require promulgation of a new rule under circumstances
    presented by this case, and therefore we reverse the decision of
    court of appeals.2
    I.   BACKGROUND
    ¶2   On a piece of property next to Interstate 39 in Stevens
    Point, Wisconsin, there is a sign.    It has been there since 1991
    when Orde Advertising obtained a permit to build it.         Upon its
    completion, the sign (we will refer to it as the "Billboard")
    complied with the terms of its permit and all applicable laws (the
    "permit").   The Billboard has two faces and cumulatively measures
    1,344 square feet.   Orde Advertising sold the Billboard to Lamar
    Central Outdoor, LLC ("Lamar") in 1999.3
    1 All subsequent references to the Wisconsin Statutes are to
    the 2015-16 version unless otherwise indicated.
    2 This is a review of an unpublished decision of the court of
    appeals, Lamar Central Outdoor, LLC v. Div. Hearing & Appeals, No.
    2017AP1823, unpublished slip. op., (Wis. Ct. App. Nov. 29, 2018).
    3 The land on which the Billboard exists is owned by TLC
    Properties, Inc.
    2
    No.   2017AP1823
    ¶3     For purposes of this case, the Billboard came to the
    attention   of   the    Wisconsin       Department   of    Transportation     (the
    "Department") in 2012 when Lamar applied for a permit to remove
    vegetation that partially obscured the Billboard from view (the
    "Application").       As part of the permitting process, the Department
    reviewed historical photographs, at least one of which depicted
    the addition of an extension panel that increased the Billboard's
    total advertising area.          But the added panel was temporary, and
    Lamar had already removed it several years before filing the
    Application.     With the panel removed, the Billboard returned to
    its originally-permitted size.                Nothing in the record suggests
    that, at the time Lamar filed the Application, the Billboard failed
    to comply with the terms of the permit or any applicable laws that
    existed at the time the permit issued.
    ¶4     But circumstances have changed, and the laws no longer
    allow the Billboard where it is presently located.                  As relevant
    here, the Billboard may exist only on property defined as a
    "business   area."         See   Wis.   Stat.    § 84.30   (governing      outdoor
    advertising signs).        What qualifies as a business area depends on
    whether the property is adjacent to an interstate highway or,
    instead, a non-interstate highway.              § 84.30(2)(a), (b).     In 1996,
    the stretch of road next to the Billboard was redesignated from
    U.S. Highway 51 to Interstate Highway 39.             The parties agree that,
    although the property on which the Billboard is located qualified
    as a business area when the adjacent highway was designated U.S.
    Highway   51,    it   no   longer   qualified      once    the   highway   became
    3
    No.   2017AP1823
    Interstate 39.4   Consequently, the highway's redesignation changed
    the Billboard's status from legal to "legal, nonconforming."
    ¶5     The Billboard's status is important in this case because
    the Department says that "legal, nonconforming" signs like the
    Billboard may not be enlarged.        And if they are enlarged, the
    Department says, they become illegal and are subject to removal.
    On that basis, the Department denied Lamar's Application.         The
    Department's amended decision5 said that "records show this sign
    was 1344 square feet in area when it became nonconforming in 1996.
    Since then, the sign was enlarged, subjecting the sign to removal
    as an illegal sign."
    ¶6     Shortly after denying the Application, the Department
    sent Lamar an order requiring it to remove the Billboard (the
    "Order").    The operative part of the Order said:
    NOTICE:   Under the authority provided in Wisconsin
    Statutes, [§] 84.30(11) and Wisconsin Administrative
    4 When property is adjacent to a non-interstate highway, a
    "business area" comprises "any part of an adjacent area which is
    zoned for business, industrial or commercial activities under the
    authority of the laws of this state; or not zoned, but which
    constitutes an unzoned commercial or industrial area as defined in
    par. (k)." Wis. Stat. § 84.30(2)(b). However, when the property
    is adjacent to an interstate highway, "business areas" are "limited
    to commercial or industrial zones within the boundaries of
    incorporated municipalities, as those boundaries existed on
    September 1, 1959, and all other areas where the land-use as of
    September 1, 1959, was clearly established by state law as
    industrial or commercial." 
    Id. 5 The
    Department actually issued two decisions denying the
    Application. The second, dated October 10, 2012, is the same as
    the first except that it denied the Application for the additional
    reason that the vegetation Lamar wanted to clear was not within
    the "viewing zone" as defined by Wis. Stat. § 84.305(l)(i).
    4
    No.    2017AP1823
    Code, [§] TRANS 201.09, you are hereby ordered to remove
    the above-described outdoor advertising sign within 60
    days of the date of this notice.
    . . . .
    REASON FOR THIS ACTION: This sign does not comply with
    applicable federal and/or state laws and agreements, as
    detailed below:     This sign has been enlarged, in
    violation of Wisconsin Administrative Code [§] Trans
    201.10(2)(e) and Wisconsin Statute 84.30(5)(bm) . . . .
    This is an illegal sign.
    ¶7        Lamar   requested   a   hearing   before      the    Division      of
    Hearings and Appeals (the "DHA") to review the Order and the
    Department's denial of the Application. The DHA said the Billboard
    lost       its   "legal,   nonconforming"     status   when    Lamar       added   the
    temporary panel.           It also said that removing the temporary panel
    could not recapture the Billboard's prior status.                    Therefore, it
    concluded, Lamar must remove the entire Billboard.6
    ¶8        Lamar filed a petition for judicial review of the DHA's
    decision pursuant to Wis. Stat. § 227.52.                     The circuit court
    affirmed the DHA's final decision "in all respects."7                      The court
    of appeals affirmed.           We granted Lamar's petition for review and
    now reverse.
    II.   STANDARD OF REVIEW
    The Department conceded, before the DHA issued its decision
    6
    in this case, that a change in the statutory definition of "viewing
    zone" covers the vegetation Lamar wished to clear.      So the DHA
    concluded the second basis for denying the Application, as set
    forth in the Department's decision of October 10, 2012, is no
    longer valid.
    The Portage County Circuit Court affirmed the order of the
    7
    Division of Hearing and Appeals, the Honorable Jon M. Counsell
    presided.
    5
    No.   2017AP1823
    ¶9     Our duty in this case is to review the DHA's decision,
    as opposed to that of the circuit court.        Hilton ex rel. Pages
    Homeowners' Ass'n v. DNR, 
    2006 WI 84
    , ¶15, 
    293 Wis. 2d 1
    , 
    717 N.W.2d 166
    ("When an appeal is taken from a circuit court order
    reviewing an agency decision, we review the decision of the agency,
    not the circuit court.").      In performing that review, we do "not
    substitute [our] judgment for that of the agency as to the weight
    of the evidence on any disputed finding of fact," but we do not
    rely on "any finding of fact that is not supported by substantial
    evidence in the record."      Wis. Stat. § 227.57(6).   And we "accord
    no deference to the agency's interpretation of law." § 227.57(11);
    see also Tetra Tech EC, Inc. v. DOR, 
    2018 WI 75
    , ¶108, 
    382 Wis. 2d 496
    , 
    914 N.W.2d 21
    ("We have . . . end[ed] our practice of
    deferring to administrative agencies' conclusions of law.").
    ¶10    The specific issue before us also presents a question of
    law.     "Whether an agency's action constitutes a 'rule' under Wis.
    Stat. § 227.01(13) presents a question of law, which we review de
    novo."      Homeward Bound Servs., Inc. v. Office of Ins. Comm'r, 
    2006 WI App 208
    , ¶27, 
    296 Wis. 2d 481
    , 
    724 N.W.2d 380
    .
    III.   ANALYSIS
    ¶11    Our opinion today addresses whether the Department may
    order Lamar to remove the Billboard because it temporarily exceeded
    its permitted size.     The Department's position on the consequences
    of temporary violations of a "legal, nonconforming" sign's permit
    has morphed over the years.      This is not necessarily problematic.
    It is to be expected that an administrative agency might, from
    time to time, change the manner in which it applies and enforces
    6
    No.    2017AP1823
    our State's statutes and regulations.                 Sometimes a prudential
    reordering of priorities or other discretionary factors prompt the
    change.      But sometimes the change arises from a reevaluation of
    what   the    agency    believes     a   particular   statute    or     regulation
    requires.       This    case   implicates     the   latter     circumstance    and
    addresses whether it was necessary for the Department to promulgate
    a rule before implementing its new understanding of the applicable
    statute's requirements.
    ¶12   The Department says that when Lamar added the temporary
    extensions to the Billboard, the sign's status changed from "legal,
    nonconforming" to "illegal," thereby subjecting it to removal.
    And, more importantly, the Department says the change in status is
    irreversible——that is, the sign owner has no opportunity to "cure"
    the violation.         A permit program supervisor who recently worked
    for    the    Department,      Ms.       Deborah    Brucaya,     explained     the
    Department's current position.             She said that "if the extension
    was placed on the sign after it became nonconforming and was later
    removed, [the Department's] interpretation [is] that the sign lost
    its nonconforming status" and "became illegal."                According to the
    Department, this result necessarily follows from the terms of Wis.
    Stat. § 84.30(11), which say:
    Any sign erected in an adjacent area after March 18,
    1972, in violation of this section or the rules
    promulgated under this section, may be removed by the
    department upon 60 days' prior notice by registered mail
    to the owner thereof and to the owner of the land on
    which said sign is located, unless such sign is brought
    into conformance within said 60 days. No notice shall be
    required to be given to the owner of a sign whose name
    is not stated on the sign or on the structure on which
    7
    No.    2017AP1823
    it is displayed, or whose address is not stated thereon
    or is not on file with the department.
    § 84.30(11) (emphasis added).          Lamar cannot exercise this cure
    option, the Department says, because changed circumstances make it
    impossible to conform the Billboard to the law. It concludes that,
    because    the    redesignation   of   the   adjacent   highway    means   the
    property may no longer host signs like the Billboard, "conformance"
    actually requires the sign's removal.
    ¶13    Lamar says the Department's current understanding of
    Wis. Stat. § 84.30(11) represents a sharp break from its prior
    practice.    Previously, it says, the Department granted the owner
    of a "legal, nonconforming" sign 60 days to cure whatever condition
    caused the sign to violate the permit.           One of the Department's
    former permit program supervisors, Mr. Robert Hardie, confirmed
    that this is how the Department handled changes to signs like the
    Billboard.       He said that "[i]f a sign was either permitted at a
    certain size or legal nonconforming at a certain size, if an
    extension went up, it would be considered illegal and have to be
    removed or taken back to where it was before."            And if the owner
    removed the extension "within the 60-day period allotted, the
    remainder of the sign could continue unimpeded[.]"            That is, the
    sign returned to the "legal, nonconforming" status it enjoyed
    before the violation.       This practice, the supervisor said, was
    based on the Department's interpretation of § 84.30(11)——the same
    statute on which the Department relies for its               current, but
    contradictory, position.
    8
    No.   2017AP1823
    ¶14     Lamar argues that the Department may not eliminate the
    opportunity to cure a violation until it first promulgates a rule
    to that effect using the Wis. Stat. Ch. 227 rulemaking procedure.
    The Department does not deny that its "no-cure" position differs
    from its prior practice, but says no rulemaking is necessary
    because    it     is   simply   correcting     for   a   previously   erroneous
    understanding of the law.
    ¶15     Our resolution of the parties' dispute begins with the
    proposition that every agency must "promulgate as a rule each
    statement of general policy and each interpretation of a statute
    which   it      specifically    adopts   to    govern    its   enforcement   or
    administration of that statute."             Wis. Stat. § 227.10(1).     A rule
    is "a regulation, standard, statement of policy, or general order
    of general application that has the force of law and that is issued
    by an agency to implement, interpret, or make specific legislation
    enforced     or    administered    by    the    agency    or   to   govern   the
    organization or procedure of the agency." Wis. Stat. § 227.01(13).
    ¶16     The Department tells us there are two reasons it did not
    need to adopt a rule to eliminate the cure option.             First, it says,
    Wis. Stat. § 227.10(1) contains a provision allowing it to adopt
    a new statutory interpretation in contested cases or the resolution
    of particular matters.           Second, it says its current position
    reflects the Department's application of the clear and unambiguous
    requirements of Wis. Stat. § 84.30(11), a circumstance we have
    previously      indicated   does   not   require     rulemaking.      Schoolway
    Transp. Co. v. DMV, 
    72 Wis. 2d 223
    , 
    240 N.W.2d 403
    (1976).
    A.    Of Contested Cases and Particular Matters
    9
    No.    2017AP1823
    ¶17   In the same statute Lamar cited for the rulemaking
    mandate, the Department says it found an exemption applicable to
    circumstances like those at issue here.                  The relevant subsection
    says this:
    Each agency shall promulgate as a rule each statement of
    general policy and each interpretation of a statute
    which it specifically adopts to govern its enforcement
    or administration of that statute. A statement of policy
    or an interpretation of a statute made in the decision
    of a contested case . . . or in an agency decision upon
    or disposition of a particular matter as applied to a
    specific set of facts does not render it a rule or
    constitute specific adoption of a rule and is not
    required to be promulgated as a rule.
    Wis. Stat. § 227.10(1).           The Department concentrates on the second
    sentence, arguing that the Order represents the application of
    Wis. Stat. § 84.30(11) to a specific set of facts in the resolution
    of   a    particular     matter.         Therefore,      it    concludes,      its   new
    interpretation      was    not    a   "rule"     within       the   meaning    of    this
    provision.
    ¶18   The Department's argument requires us to determine the
    meaning of a statute, specifically the second sentence of Wis.
    Stat. § 227.10(1).         The process for doing so is well-known and
    "'begins with the language of the statute.                    If the meaning of the
    statute is plain, we ordinarily stop the inquiry.'"                    State ex rel.
    Kalal     v.   Circuit    Court    for    Dane   Cty.,    
    2004 WI 58
    ,    ¶45,    
    271 Wis. 2d 633
    , 
    681 N.W.2d 110
    (quoted source omitted).                         "Statutory
    language is given its common, ordinary, and accepted meaning,
    except that technical or specially-defined words or phrases are
    given their technical or special definitional meaning." 
    Id. (cited 10
                                                                          No.    2017AP1823
    source omitted).          But sometimes a statute does not have a plain
    meaning.       "[A] statute is ambiguous if it is capable of being
    understood by reasonably well-informed persons in two or more
    senses." 
    Id., ¶47. We
    do not, however, look for ambiguity because
    "[s]tatutory interpretation involves the ascertainment of meaning,
    not a search for ambiguity."               
    Id. (quoted source
    omitted); see
    also    Daniel       R.   Suhr,    Interpreting       Wisconsin       Statutes,      100
    Marq. L. Rev. 969,         985    (2017)    ("[T]he    court    must    do   its   own
    independent work to determine whether a statute is ambiguous.                         It
    cannot take the easy road, throwing up its hands and declaring,
    'the parties disagree,' or 'the lower courts disagree,' or even
    'the dissenters disagree.'").
    ¶19     The    Department     did     not   extensively         discuss       its
    understanding of the meaning of the second sentence of Wis. Stat.
    § 227.10(1).         Indeed, it gave us only a few sentences-worth of
    explanation to guide our application of its terms.                      The gist of
    the argument seems to be that the Department is free to adopt any
    reasonable statutory interpretation it wishes——sans rulemaking——
    so long as it does so in a contested case or disposition of a
    particular matter.          Because the Department adopted its no-cure
    position in the process of ordering Lamar to remove the Billboard,
    it concludes that § 227.10(1) exempted it from promulgating a rule.
    ¶20     The Department's argument, however, requires that we
    read into Wis. Stat. § 227.10(1) two alternative pathways by which
    an agency may adopt a new interpretation of an ambiguous statute.
    The    first    pathway     requires       promulgation    of     a    new   rule,    a
    requirement found in the first sentence of § 227.10(1) ("Each
    11
    No.    2017AP1823
    agency shall promulgate as a rule each statement of general policy
    and each interpretation of a statute which it specifically adopts
    to govern its enforcement or administration of that statute.").
    The Department says the second pathway, found in the second
    sentence of § 227.10(1), allows it to adopt a new interpretation
    of an ambiguous statute simply by announcing it in a contested
    case or in the resolution of a specific matter.
    ¶21    If the second pathway allowed the Department to change
    its interpretation of an ambiguous statute, it would place Wis.
    Stat. § 227.10(1) in unresolvable conflict with itself under such
    circumstances.      While the first sentence requires a rule for each
    statutory interpretation, the Department's position would allow it
    to   regularly     engage    in    ad     hoc   interpretations     of   ambiguous
    statutes.     According to the Department, it is of no consequence
    that, until a few years ago, it interpreted Wis. Stat. § 84.30(11)
    as allowing the owner of a "legal, nonconforming" sign to cure a
    violation, while today it interprets the same statue as foreclosing
    that opportunity.       And nothing in its explanation of the operation
    of § 227.10(1) would prevent it from returning to the original
    interpretation tomorrow. Nor would it even preclude the Department
    from employing the "cure" interpretation with respect to one sign
    while       simultaneously         applying       the    contrary        "no-cure"
    interpretation against another.
    ¶22    All   of   this      would    be   consistent   with    Wis.   Stat.
    § 227.10(1), according to the Department's rationale, but only if
    it surprises a sign-owner with the new interpretation of an
    12
    No.    2017AP1823
    ambiguous statute.8              That is, to escape the rulemaking mandate of
    the first sentence, it must wait for a contested case or some other
    resolution          of    a    specific     matter    before      announcing      the    new
    interpretation.9              If it instead announced the interpretation prior
    to a contested case or resolution of a specific matter, presumably
    even       the    Department      would     agree    it   would    need   to    engage    in
    rulemaking.10            The Department does not describe how, in the context
    of an ambiguous statute, its understanding of the second sentence
    of § 227.10(1) could possibly coexist with the first sentence's
    mandate          that    it   engage   in    rulemaking     when    it    adopts    a    new
    interpretation.
    ¶23        The plain meaning of Wis. Stat. § 227.10(1), the meaning
    that makes sense of both sentences, is that it describes only one
    pathway by which an agency can adopt a new interpretation of an
    ambiguous statute:               The agency must adopt a rule.                  The second
    That appears to be what happened here. When asked if the
    8
    Department had ordered other signs removed based on the no-cure
    policy, Ms. Brucaya testified that "this is the only instance that
    [she] was aware of where a sign removal order was issued on [this]
    basis."
    Wis. Stat. § 227.10(1) ("A statement of policy or an
    9
    interpretation of a statute made in the decision of a contested
    case, in a private letter ruling under s. 73.035 or in an agency
    decision upon or disposition of a particular matter as applied to
    a specific set of facts does not render it a rule or constitute
    specific adoption of a rule and is not required to be promulgated
    as a rule.").
    Wis. Stat. § 227.10(1) ("Each agency shall promulgate as a
    10
    rule each statement of general policy and each interpretation of
    a statute which it specifically adopts to govern its enforcement
    or administration of that statute.").
    13
    No.        2017AP1823
    sentence, the one on which the Department relies, neither provides
    an alternative path by which to announce a new interpretation of
    an    ambiguous         statute,      nor    excuses    the   Department      from      the
    requirement imposed on it by the first sentence.                              It merely
    recognizes that, in resolving specific matters, agency decisions
    will often contain——but not create——a statement of policy, or
    interpretation of a statute as applied to the matter at hand, and
    that they need not adopt a new rule for each specific matter they
    resolve.11 However, the second sentence does not say that an agency
    need not promulgate a rule embodying the new interpretation of an
    ambiguous statute before implementing it in a specific case. There
    is nothing in § 227.10(1) that authorizes the Department to adopt
    its   "no-cure"         interpretation        through   the   simple   expedient         of
    ordering Lamar to remove the Billboard.
    B.       Correcting Erroneous Statutory Applications
    ¶24    The Department also said it could implement its "no-
    cure"       interpretation            of    Wis.   Stat.      § 84.30(11)          without
    promulgating a new rule because it was simply conforming its
    practice      to    the       statute's      requirements.       The     Department's
    statement      of       the    principle      is   correct——we    have       previously
    explained that when an agency corrects a previously erroneous
    application        of    a    plain    and    unambiguous     statute,       it    is   not
    interpreting the statute, but merely conforming its practice to
    the law. Schoolway Transp. 
    Co., 72 Wis. 2d at 228
    ("When a statute
    We need not determine the significance or operation of the
    11
    second sentence of Wis. Stat. § 227.10(1) in the context of an
    unambiguous statute, and so offer no opinion on that topic.
    14
    No.    2017AP1823
    is plain and unambiguous, no interpretation is required[.]"); 
    id. at 236
    ("[T]he duty of the Department [is] to administer the
    statute according to its plain terms and to correct its error.").
    So when an agency brings its practice into conformity with the
    plain meaning of an unambiguous statute, "there is no requirement
    that the department comply with the filing procedures mandated in
    connection with promulgation of administrative rules[,]" even
    though the new statutory application contradicts its previous
    practice.   Id.12   But when an agency changes its interpretation of
    an ambiguous statute, it is engaging in rulemaking.         
    Id. at 237
    ("[W]hen the Department changed its interpretation of [Wis. Stat.
    §] 341.26(2)(h) [which the court had determined to be ambiguous],
    it was engaging in administrative rule making.").       Under those
    circumstances, "[t]hose who are or will be affected generally by
    this interpretation should have the opportunity to be informed as
    to the manner in which the terms of the statute regulating their
    12Schoolway Transp. Co. v. DMV, 
    72 Wis. 2d 223
    , 
    240 N.W.2d 403
    (1976) should not be understood as giving agencies a
    mechanism for adopting new statutory interpretations without
    promulgating a new rule. The principle enunciated in that case
    arises from an agency's obligation to follow the law as enacted by
    the legislature——an obligation that supersedes any contrary
    interpretations it may have previously adopted. When an agency
    discovers its interpretation is out of step with plain and
    unambiguous statutory commands, it must conform itself to those
    commands as a matter of course. Only in such a circumstance may
    the agency change a prior interpretation without promulgating a
    new rule.     Indeed, in such a circumstance the agency must
    immediately   conform   its  interpretation   to   the   statute's
    requirements.    
    Id. at 229
    ("In view of the clear statutory
    requirements, the Department was duty-bound to cease its prior
    practice of allowing dual registration.").
    15
    No.       2017AP1823
    operations will be applied."       
    Id. The agency
    informs those
    affected by the changed interpretation by promulgating a new rule.
    
    Id. ("This is
    accomplished by the issuance and filing procedures
    established by ss. 227.01(4) and 227.023(1).").13
    ¶25    Whether the Department needed to adopt its "no-cure"
    position as a rule, therefore, depends on whether Wis. Stat.
    § 84.30(11)    unambiguously   prevents   the   owner   of    a    "legal,
    nonconforming" sign from recovering the sign's pre-existing status
    by curing the status-altering violation.          So our goal is to
    determine whether there is a clear and plain meaning of § 84.30(11)
    as it relates to this question. Kalal, 
    271 Wis. 2d 633
    , ¶45.             We
    use the same process for doing so as we did in discovering the
    meaning of Wis. Stat. § 227.10(1), above.
    ¶26    The Department says there are two ways we could conclude
    that its "no-cure" interpretation is the natural and inevitable
    result of unambiguous statutory commands.       The first is that Wis.
    Stat. § 84.30(11)——the provision containing the right to cure——
    does not apply at all to signs that were lawfully erected (like
    the Billboard).14     Alternatively, the Department says that if
    13Wis. Stat. § 227.023(1), as cited in Schoolway Transp. Co.,
    was repealed in 1986 and renumbered as Wis. Stat. § 227.20 in 1985
    Wis. Act 182.
    14   This subsection says:
    16
    No.   2017AP1823
    § 84.30(11) does apply to signs like the Billboard, the cure option
    is available only to those who can conform their signs to the
    applicable laws as they apply to current circumstances.         We will
    address each basis in turn.
    1.     Applicability of Wis. Stat. § 84.30(11) to "legal,
    nonconforming" signs
    ¶27    In the space of this one case, the Department has been
    of both minds with respect to whether Wis. Stat. § 84.30(11)
    applies to the Billboard.      Its Order——the one requiring Lamar to
    remove the Billboard——says § 84.30(11) is the underlying source of
    the Department's statutory authority.          See Order ("Under the
    authority    provided   in   Wisconsin   Statutes,   [§] 84.30(11)   and
    Wisconsin Administrative Code, [§] TRANS 201.09[15], you are hereby
    ordered to remove the above-described outdoor advertising sign
    within 60 days of the date of this notice.").            But here, the
    Any sign erected in an adjacent area after March
    18, 1972, in violation of this section or the rules
    promulgated under this section, may be removed by the
    department upon 60 days' prior notice by registered mail
    to the owner thereof and to the owner of the land on
    which said sign is located, unless such sign is brought
    into conformance within said 60 days. No notice shall be
    required to be given to the owner of a sign whose name
    is not stated on the sign or on the structure on which
    it is displayed, or whose address is not stated thereon
    or is not on file with the department.
    Wis. Stat. § 84.30(11).
    15 "Any sign erected after October 1, 1972, without a permit
    having been granted therefor, and any nonconforming sign which
    subsequently violates s. 84.30, Stats., or these rules, shall be
    subject to removal as an illegal sign." Wis. Admin. Code § Trans
    201.09.
    17
    No.     2017AP1823
    Department says § 84.30(11) does not apply to the Billboard because
    its provisions contemplate only signs that, when erected, were in
    violation of controlling law.        It notes that the statute applies
    to "[a]ny sign erected in an adjacent area after March 18, 1972,
    in violation of this section or the rules promulgated under this
    section . . . ."       § 84.30(11)     (emphasis    added).         Because   the
    Billboard complied with all applicable laws when it was built, the
    Department argues, it is outside the universe of signs subject to
    the terms of § 84.30(11). The Department says this latter position
    (that § 84.30(11) does not apply to the Billboard) means Lamar has
    no statutory source of authority for its claimed right to cure the
    status-altering modification.
    ¶28    The Department's conflicting positions with respect to
    whether Wis. Stat. § 84.30(11) applies to the Billboard suggests
    we need to decide which one is correct.            But as it turns out, it
    hardly matters.    If we agree with the position the Department took
    when it issued the Order (that § 84.30(11) does apply to the
    Billboard), our analysis would simply progress to the Department's
    alternative argument, to wit, determining what it means for a sign
    to have been "brought into conformance."           But if we agree with the
    Department's current interpretation of § 84.30(11), the one it
    advanced here, then it wins the battle over the inapplicability of
    § 84.30(11) while losing the war over whether it was required to
    promulgate a new rule embodying its "no-cure" interpretation.
    ¶29    This is necessarily so because, as the parties agree, we
    are addressing this part of the Department's argument under the
    Schoolway    Transp.   Co.   rubric,      which   excuses     the    rulemaking
    18
    No.      2017AP1823
    requirement only if the no-cure interpretation is consistent with
    plain     and   unambiguous   statutory       commands.16          But     if     the
    Department's     current   position    is     correct,      that    Wis.        Stat.
    § 84.30(11) does not apply to the Billboard, then it must follow
    that this statute cannot command the Department to adopt a no-cure
    policy with respect to such signs.          That is to say, a statute that
    does not apply to the subject under consideration is entirely
    incapable of plainly and unambiguously commanding the Department
    to adopt a specific policy with respect to that subject.                        So if
    the Department wishes to rely on the Schoolway Transp. Co. rubric,
    it must look elsewhere for a plain and unambiguous statutory
    command.    It has not done so.
    ¶30    Instead,   because   the       Department   could      point    to     no
    statute (other than Wis. Stat. § 84.30(11)) requiring adoption of
    its no-cure policy, it referred us to Wis. Admin. Code §§ Trans
    201.09 and 201.10 as the operative authorities.17                  The first of
    16This also means we have no need to disambiguate the statute
    to reach our conclusion. Under the Schoolway Transp. Co. rubric,
    we have a binary decision before us: Is the statute, or is it
    not, clear and unambiguous? The answer dictates how the remainder
    of the analysis proceeds. But no part of that analysis requires
    us to resolve ambiguities, and we express no opinion on which of
    the interpretations of Wis. Stat. § 84.30(11) is correct.
    17We determine the meaning of a rule in the same way we
    determine the meaning of a statute. "These rules of interpretation
    apply with equal force to administrative regulations:        'When
    interpreting administrative regulations the court uses the same
    rules of interpretation as it applies to statutes.'" Kieninger v.
    Crown Equip. Corp., 
    2019 WI 27
    , ¶14 n.6, 
    386 Wis. 2d 1
    , 
    924 N.W.2d 172
    (quoting United Food and Commercial Workers Union Local
    1473 v. Hormel Foods Corp., 
    2016 WI 13
    , ¶30, 
    367 Wis. 2d 131
    , 
    876 N.W.2d 99
    ).
    19
    No.   2017AP1823
    these provisions says that "[a]ny sign erected after October 1,
    1972, without a permit having been granted therefor, and any
    nonconforming sign which subsequently violates s. 84.30, Stats.,
    or these rules, shall be subject to removal as an illegal sign."
    § Trans 201.09.        The second provision says that "[i]n order to
    lawfully maintain and continue a nonconforming sign . . . the
    following conditions apply . . . [t]he sign must have been lawful
    on the effective date of the state law and must continue to be
    lawfully maintained." § Trans 201.10(2)(d). These are, of course,
    rules.     And rules cannot function in the Schoolway Transp. Co.
    rubric inasmuch as it is nonsensical to say that an agency need
    not promulgate a rule to change a prior practice so long as it has
    promulgated a rule adopting the new practice.
    ¶31    So   the    Department's      reliance    on   Wis.    Admin.    Code
    §§ Trans 201.09 and 201.10 boils down to a simple matter of
    determining whether the rules adopted the Department's "no-cure"
    policy.     They did not.          No one disputes that when a "legal,
    nonconforming" sign (such as the Billboard) violates Wis. Stat.
    § 84.30 it becomes illegal and subject to removal.                      But the
    Department's argument depends on the rule precluding Lamar from
    curing the status-altering violation.                 And § Trans 201.09 is
    completely silent on that subject.             Similarly, § Trans 201.10
    requires a nonconforming sign to be lawfully maintained, upon pain
    of losing its status.        But it says nothing about whether curing a
    status-altering        violation   can    recapture    the   sign's     previous
    status.    Finally, not even the Department thought these rules said
    anything about the right to cure——until, that is, it issued the
    20
    No.   2017AP1823
    Order. These rules have existed in their current form since 1976,18
    a span of time that encompasses the era in which the Department's
    interpretation       of   § 84.30(11)       allowed     owners     of    "legal,
    nonconforming" signs to cure status-altering violations.                  It was
    not until 2012 (when the Department ordered Lamar to remove the
    Billboard) that it suddenly discovered that these rules required
    it to adopt its current no-cure interpretation.               So while these
    rules remained as a fixed point of reference, the Department's
    understanding of what they require fluctuated.             The Department did
    not explain how the rules' unchanging text could engender changing
    interpretations.      For that reason, and because nothing in the text
    of § Trans 201.09 or § Trans 201.10 suggests a no-cure policy,
    these provisions do not answer the question before us.
    ¶32   In sum, the Department's argument that its adoption of
    the   no-cure   policy    falls    within    the      Schoolway    Transp.    Co.
    rulemaking exemption because Wis. Stat. § 84.30(11) does not apply
    to the Billboard must fail inasmuch as it identified no plain and
    unambiguous statutory command necessitating that policy.                The most
    this argument could have accomplished was the undoing of Lamar's
    position that it has a statutory right to cure violations.                    But
    eliminating support for Lamar's argument is not the same as
    identifying     an   unambiguous    statutory      command       requiring    the
    Department's new policy.      Further, the Department may not rely on
    Wis. Admin. Code §§ Trans 201.09 or 201.10 as a substitute for a
    The rules were renumbered from Wis. Admin. Code §§ Hy 19.09
    18
    and 19.10 to Wis. Admin. Code §§ 201.09 and 201.10, respectively,
    in 1980.
    21
    No.   2017AP1823
    plain and unambiguous statute in the Schoolway Transp. Co. rubric.
    Finally, nothing in those rules indicates the Department had
    adopted      a    no-cure      policy     prior    to   issuance     of    the    Order.
    Therefore,        we    will    proceed    to     the   Department's       alternative
    argument, to wit, that § 84.30(11) does apply to the Billboard,
    and   that       it    unambiguously      precludes       Lamar    from    curing    the
    Billboard's status-altering violation.
    2.     The meaning of "conformance"
    ¶33        The   Department       argues    that,     even    if     Wis.    Stat.
    § 84.30(11) applies to the Billboard, the statute's terms make the
    cure option unavailable to owners of "legal, nonconforming" signs.
    So, it concludes, it could adopt its no-cure interpretation without
    a rule (under the Schoolway Transp. Co. rubric) because it was
    just aligning itself with the statute's plain and unambiguous
    requirements.          The provision on which it relies says:
    Any sign erected in an adjacent area after March 18,
    1972, in violation of this section or the rules
    promulgated under this section, may be removed by the
    department upon 60 days' prior notice by registered mail
    to the owner thereof and to the owner of the land on
    which said sign is located, unless such sign is brought
    into conformance within said 60 days.
    § 84.30(11). Specifically, the Department directs us to the phrase
    "unless such sign is brought into conformance within said 60 days."
    
    Id. Lamar cannot
    bring the Billboard "into conformance," according
    to the Department, because current law prohibits the erection or
    maintenance of signs like the Billboard in that location.                         Indeed,
    the Department says that "conformance" under these circumstances
    actually requires Lamar to remove the Billboard.
    22
    No.       2017AP1823
    ¶34    Whether the Department is correct depends on what the
    Billboard must be "in conformance" with. Unfortunately, Wis. Stat.
    § 84.30(11) does not provide an immediately obvious answer.                                We
    can readily determine that the conformity requirement refers to
    the phrase "this section or the rules promulgated under this
    section," which appears in the first clause of the subsection.
    
    Id. But circumstances
    have changed, and the way the statutory
    section and rules apply to the Billboard is different now.                              When
    the permit issued, the Billboard was in conformance because it was
    located in a business area.              But once the adjacent portion of U.S.
    Highway 51 became Interstate 39, the lot on which the Billboard
    resides      lost    its    status      as   a   business    area.      So      after      the
    redesignation,        the     Billboard       obtained      something      of    a   hybrid
    status——it was legal because it was in conformance with the laws
    as    they   applied       when   the    permit     issued,     but   it    was      not    in
    conformance         with    the   same       laws   as   they   applied         after      the
    redesignation.             Lamar says that, with respect to such signs,
    "conformance" in § 84.30(11) refers to the first part of the sign's
    hybrid status, meaning that if the Billboard can be brought "into
    conformance" with the laws as they applied when the permit issued,
    then it has the right to cure the violation.                     The Department, on
    the other hand, says "conformance" refers to the second part of
    the Billboard's hybrid status, meaning that there can be no right
    to cure unless the Billboard can be made to comply with the laws
    as they apply today.
    ¶35    The Billboard obviously cannot comply with the laws as
    they apply to today's circumstances.                     The property on which the
    23
    No.    2017AP1823
    Billboard is located no longer qualifies as a "business area," and
    there is nothing Lamar can do to remedy that infirmity.                But the
    Billboard can comply with the laws as they applied when the permit
    issued.    Therefore, we need to know which part of the Billboard's
    hybrid status the "conformance" language of Wis. Stat. § 84.30(11)
    implicates. Under the Schoolway Transp. Co. rubric, the Department
    would not have needed to promulgate a rule only if the statute
    plainly and unambiguously applies to the latter part of the
    Billboard's hybrid status.
    ¶36   The language of Wis. Stat. § 84.30(11) does not provide
    any obvious clues as to which part of the Billboard's status it
    implicates,   and   so   we   must   go    beyond   Kalal's   first   step   in
    determining the statute's meaning.            Kalal, 
    271 Wis. 2d 633
    , ¶45
    ("[W]e have repeatedly held that statutory interpretation 'begins
    with the language of the statute. If the meaning of the statute is
    plain, we ordinarily stop the inquiry.'") (quoted source omitted).
    The next step in a plain meaning analysis is looking to the
    statute's scope, context, structure, and purpose to see if they
    provide any helpful direction.19
    19We have previously recognized                the   following   aids   in
    determining a statute's meaning:
    24
    No.    2017AP1823
    ¶37     The Department says its new interpretation of Wis. Stat.
    § 84.30(11) furthers the general policy objective of eliminating
    nonconforming signs.       It points to § 84.30(5)(b), which says that
    "[a]    sign    lawfully   erected   after   March   18,   1972    and   which
    subsequently does not conform to this section shall be removed by
    the end of the 5th year after it becomes nonconforming."20               That,
    however, is only part of the general policy——the other part
    requires payment of just compensation for the removal of such
    signs:
    The department shall pay just compensation upon the
    removal or relocation on or after March 18, 1972, of any
    of the following signs which are not then in conformity
    with this section, regardless of whether the sign was
    removed because of this section:
    Context is important to meaning. So, too, is the
    structure of the statute in which the operative language
    appears. Therefore, statutory language is interpreted in
    the context in which it is used; not in isolation but as
    part of a whole; in relation to the language of
    surrounding or closely-related statutes; and reasonably,
    to   avoid  absurd   or   unreasonable   results . . . .
    [S]cope, context, and purpose are perfectly relevant to
    a plain-meaning interpretation of an unambiguous statute
    as long as the scope, context, and purpose are
    ascertainable from the text and structure of the statute
    itself, rather than extrinsic sources, such as
    legislative history.
    State ex rel. Kalal v. Circuit Court for Dane Cty., 
    2004 WI 58
    ,
    ¶¶46, 48, 
    271 Wis. 2d 633
    , 
    681 N.W.2d 110
    (citations omitted).
    See also State ex rel. Peterson v. Burt, 
    42 Wis. 2d 284
    ,
    20
    291, 
    166 N.W.2d 207
    (1969) ("'The spirit of zoning is to restrict
    rather than increase a non-conforming use and to eliminate such
    uses as speedily as possible.'") (quoted source omitted).
    25
    No.     2017AP1823
    . . . .
    (b) Signs lawfully in existence on land adjoining
    any highway made an interstate or primary highway after
    March 18, 1972.
    § 84.30(6).       So § 84.30(11) operates in the context of a policy
    favoring    the    expeditious      removal   of     nonconforming       signs   with
    compensation.       But     there   is   no   such    policy    with     respect   to
    uncompensated removal of nonconforming signs.                  In fact, as far as
    the statutes are concerned, unless and until the Department pays
    just compensation, the law allows a "legal, nonconforming" sign to
    exist     indefinitely.21        Consequently,       Wisconsin's       policy    with
    respect to the maintenance of non-conforming signs provides no
    guidance     on   whether    a   status-altering        violation      results     in
    permanent illegality as opposed to only a temporary illegality
    that can be remedied by curing the violation.
    21We recognize that the court of appeals has previously said
    that, in the context of a zoning dispute, a status-altering
    violation of a "legal, nonconforming" use cannot be remedied, which
    furthers the elimination of such uses.       See Waukesha Cty. v.
    Pewaukee Marina, Inc., 
    187 Wis. 2d 18
    , 31, 
    522 N.W.2d 536
    (Ct.
    App. 1994) ("The violation of the nonconforming use by expansion
    or enlargement which changes the use invalidates the legal
    nonconforming use as well as the illegal change."); 
    Peterson, 42 Wis. 2d at 291
    ("'The spirit of zoning is to restrict rather than
    increase a non-conforming use and to eliminate such uses as
    speedily as possible.'") (quoted source omitted).
    But this is not particularly instructive here because we are
    doing a plain meaning analysis of one part of Wisconsin's sign
    control laws to determine if it unambiguously prevents an owner
    from curing a status-altering violation. Although Peterson and
    Pewaukee Marina, Inc. may be indicative of a general approach to
    nonconforming uses, they do not instruct us on whether the plain
    meaning of Wis. Stat. § 84.30(11) requires the Department's
    current interpretation.
    26
    No.     2017AP1823
    ¶38    We     conclude      that     the     "language        [of     Wis.      Stat.
    § 84.30(11)] reasonably gives rise to different meanings" with
    respect    to    whether   it    prevents       the   owner   of    a    "legal,      non-
    conforming" sign from curing a status-altering violation.                          Kalal,
    
    271 Wis. 2d 633
    , ¶47.            Specifically, the phrase "brought into
    conformance" could mean that the Billboard must conform to the
    laws either:       (a) as they applied to the circumstances when the
    permit issued (the "legal" part of the sign's hybrid status); or
    (b) as they apply to current circumstances (the "nonconforming"
    part of the hybrid status).             According to our canons of statutory
    construction, that makes it ambiguous.                    
    Id. ("[A] statute
    is
    ambiguous if it is capable of being understood by reasonably well-
    informed persons in two or more senses.") (citations omitted).
    Therefore, because § 84.30(11) does not plainly and unambiguously
    require the Department's no-cure interpretation, Schoolway Transp.
    Co. does not provide an exemption from the rulemaking requirement.
    * * *
    ¶39    We conclude it was necessary for the Department to have
    promulgated its no-cure interpretation as a rule, pursuant to Wis.
    Stat. § 227.10(1), before applying it in this matter.                          And should
    the Department promulgate this interpretation as a rule, it may
    not apply it retroactively to cured violations that existed before
    the rule was created. "A fundamental principle in our legal system
    is that laws which regulate persons or entities must give fair
    notice of conduct that is forbidden or required."                              FCC v. Fox
    Television       Stations,      Inc.,    
    567 U.S. 239
    ,     253        (2012);      
    id. ("[R]egulated parties
    should know what is required of them so they
    27
    No.   2017AP1823
    may act accordingly.").             It is axiomatic that a new rule cannot
    reach     back    into    history    to   give   a   sign   owner   notice    of   a
    requirement the Department has not yet adopted.
    ¶40   Our statutes tell us we must "set aside or modify the
    agency action if [the court] finds that the agency has erroneously
    interpreted a provision of law and a correct interpretation compels
    a particular action, or [the court] shall remand the case to the
    agency for further action under a correct interpretation of the
    provision of law."            Wis. Stat. § 227.57(5).           The Department
    erroneously interpreted Wis. Stat. § 227.10(1) as allowing it to
    implement its no-cure interpretation without first promulgating it
    as   a    rule.     And    because    the    no-cure   interpretation     was   the
    Department's operative justification for denying the Application
    and issuing the Order, those administrative actions are erroneous
    and must be vacated.           Schoolway Transp. 
    Co., 72 Wis. 2d at 237
    ("Since this change          [in statutory interpretation] constituted
    promulgation of an administrative rule, failure to so file renders
    the rule invalid . . . .").           Consequently, to the extent Lamar has
    cured the status-altering modification to the Billboard pursuant
    to the Department's then-existing "cure" policy, it is once again
    a "legal, nonconforming" sign.
    28
    No.    2017AP1823
    ¶41     Lamar raised other issues for our review,22 but because
    we conclude that Wis. Stat. § 227.10(1) required the Department to
    engage       in   formal   rulemaking    when   it   adopted    its    no-cure
    interpretation of Wis. Stat. § 84.30(11), we need not address them
    now.        The failure to engage in rulemaking is dispositive.             See
    Gross v. Hoffman, 
    227 Wis. 296
    , 300, 
    277 N.W. 663
    (1938) ("As one
    sufficient ground for support of the judgment has been declared,
    there is no need to discuss the others urged."); see also Barrows
    v. Am. Family Ins. Co., 
    2014 WI App 11
    , ¶9, 
    352 Wis. 2d 436
    , 
    842 N.W.2d 508
    ("An appellate court need not address every issue raised
    by the parties when one issue is dispositive.").
    IV.   CONCLUSION
    ¶42     We reverse the court of appeals and remand this matter
    to the circuit court for entry of judgment setting aside the Order
    and remanding the matter to the Department for further proceedings
    on the Application not inconsistent with this opinion.
    By the Court.—The decision of the court of appeals is reversed
    and the cause is remanded to the circuit court.
    Lamar
    22      raised   four   additional   issues  unrelated   to
    rulemaking: (1) whether the DHA erred in finding that Wis. Stat.
    § 84.30 and Wisconsin Administrative Code Trans. § 201.10 prohibit
    the enlargement of nonconforming, off-premise signs erected after
    March 18, 1972; (2) whether the DHA misinterpreted and misapplied
    common law authorities relating to nonconforming uses; (3) whether
    the DHA erred as a matter of law by finding that the right to cure
    provision in § 84.30(11) does not apply to Lamar's sign; and (4)
    whether § 84.30(5)(br)(4) applies to this sign.
    29
    No.   2017AP1823
    1