Natural Resources Forest Conservation Act – Whether the Act Permits Forest Mitigation Banks that Merely Preserve Existing Forest, Rather than Create or Restore Forest ( 2020 )


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  • 66                                                   [105 Op. Att’y
    NATURAL RESOURCES
    FOREST CONSERVATION ACT – WHETHER THE ACT PERMITS
    FOREST MITIGATION BANKS THAT MERELY PRESERVE
    EXISTING FOREST, RATHER THAN CREATE OR RESTORE
    FOREST
    October 26, 2020
    The Honorable Steuart Pittman
    County Executive, Anne Arundel County
    You have asked us a question about the provisions of the
    Forest Conservation Act (the “Act”), Md. Code Ann., Nat. Res.
    (“NR”) § 5-1601 et seq., that govern forest mitigation banking,
    which is one of the measures that a developer may use to offset a
    project’s effects on forest in the State when the developer has
    exhausted all techniques for retaining forest on the project site. See
    NR §§ 5-1610.1, 5-1607(a)(3)(iii). Specifically, you ask whether
    the Act “allow[s] forest mitigation banks that preserve existing
    forest but do not afforest or reforest.”
    The Anne Arundel County Attorney has advised that, in his
    view, preservation of existing forest does not meet the Act’s
    definition of “forest mitigation banking,” namely, “the intentional
    restoration or creation of forests undertaken expressly for the
    purpose of providing credits.” Memorandum from Gregory J.
    Swain, County Attorney, to Matt Johnston, Environmental Policy
    Director (May 31, 2019) (quoting NR § 5-1601(o)). As a caveat
    to his conclusion, however, the County Attorney noted that some
    local jurisdictions seem to allow mitigation banking through the
    placement of protective easements on already-existing forest
    located off site and that “tree preservation in certain areas that is
    directly done by a developer through acquisition of an easement
    (not through a bank) is an accepted mitigation practice.”
    Id. As we explain
    below, we agree with the County Attorney’s
    conclusion that already-forested land does not qualify for treatment
    as a “mitigation bank” unless the land had been intentionally
    afforested or reforested for the express purpose of creating a
    mitigation bank, as defined by NR § 5-1601(o). Thus, the
    placement of a protective easement on already-existing forest, as
    opposed to intentionally-created-or-restored forest, would not
    qualify as mitigation banking under the Act.
    Gen. 66]                                                           67
    As to the County Attorney’s caveat, the Act indeed permits
    the acquisition of a protective easement for existing forested areas
    in municipalities and certain designated areas as a forest
    conservation measure. See NR § 5-1607(b)(2)(ii). However, the
    Act expressly provides that a mitigation bank may not consist of
    existing forest, NR § 5-1601(o), so the acquisition of such an
    easement under NR § 5-1607(b)(2) is not, and cannot be, the
    acquisition of a “mitigation banking” credit for purposes of that
    method of offsetting a project’s impact on the forest of the State.
    In other words, although the Act allows for the off-site retention of
    existing forest to be used as a mitigation technique under certain
    circumstances and although that technique may have elements in
    common with mitigation banking, the two methods are not
    interchangeable. For example, unlike mitigation banking, the
    method of preserving existing forest provided for by NR § 5-
    1607(b)(2) is permissible as a mitigation technique only in
    municipalities with a tree management plan, existing population
    centers as designated in a county’s master plan, and other
    designated areas that are approved by the Department of Natural
    Resources (“DNR”) as part of a local program. 1
    I
    Background
    We have described Maryland’s statutory scheme for the
    conservation, preservation, and enhancement of forests in four
    earlier opinions. See 100 Opinions of the Attorney General 120
    (2015) (concluding that local jurisdictions may adopt local
    programs that are more stringent than those prescribed by the Act);
    98 Opinions of the Attorney General 60, 79-80 (2013)
    (summarizing the statutory scheme); 86 Opinions of the Attorney
    General 72 (2001) (giving the history of the Act and describing the
    relative roles of the State and local jurisdictions in implementing
    it); 77 Opinions of the Attorney General 127 (1992) (same). In this
    opinion, we will focus on the statutes and DNR regulations directly
    applicable to the use of forest mitigation banks and protective
    1
    As is our practice with questions that may pertain to local
    government matters, we circulated your request and memorandum to the
    Maryland Association of Counties and the Maryland Municipal League.
    Also, as with all requests for which we expect to issue an opinion, we
    posted it on our website. We did not receive any comments on your
    request.
    68                                                    [105 Op. Att’y
    easements as measures for offsetting the impact of development on
    forest cover in Maryland.
    A.   The Act’s Afforestation and Reforestation Provisions: The
    Basic Framework for Offsetting the Effect of a Development
    Project on the Forest Cover in the State
    The Forest Conservation Act sets requirements designed to
    mitigate the impact of development on forests in Maryland. A
    developer (known under the Act as an “applicant”) who wishes to
    develop a site subject to the Act must first submit to either the State
    or relevant local jurisdiction (the “approving authority”) a forest
    stand delineation that denotes the existing forest and other
    environmental features on the site. NR § 5-1604. After that
    submission is approved, see NR § 5-1604(c), the applicant must
    then submit for further approval a forest conservation plan that
    shows the measures that the applicant will use to offset the loss of
    forest. NR § 5-1605. Your question implicates the mitigation
    measures that an approving authority may allow when reviewing a
    forest conservation plan.
    Under the Act, a forest conservation plan must show the forest
    that the applicant proposes to retain on site, the forested areas that
    the applicant proposes to clear and, if “all techniques for retaining
    existing forest cover on-site have been exhausted,” the particular
    “afforestation or reforestation” measure or measures by which the
    applicant proposes to offset the loss of trees. NR §§ 5-1605, 5-
    1607; see also 98 Opinions of the Attorney General at 79-80
    (explaining the Act).
    “Retention,” “afforestation,” and “reforestation” are defined
    terms. “Retention” means “the deliberate holding and protecting of
    existing trees, shrubs, or plants on the site according to established
    standards.” NR § 5-1601(hh). “Afforestation” means “the
    establishment of a tree cover on an area from which it has always
    or very long been absent, or the planting of open areas which are
    not presently in forest cover.” NR § 5-1601(b). The most technical
    term, “[r]eforestation,” means “the creation of a biological
    community dominated by trees and other woody plants containing
    at least 100 trees per acre with at least 50% of those trees having
    the potential of attaining a 2 inch or greater diameter measured at
    4.5 feet above the ground, within 7 years.” NR § 5-1601(gg)(1).
    Reforestation can also include linear wooded areas under
    transmission lines as well as landscaping, under an approved plan,
    that “establishes a forest that is at least 35 feet wide and covering
    2,500 square feet of area.” NR § 5-1601(gg)(2), (3).
    Gen. 66]                                                                  69
    The Act prioritizes “retention” of on-site forest when an
    applicant seeks to develop land for a project subject to the Act. NR
    § 5-1607. Only when the applicant has exhausted “all techniques”
    for on-site retention may “afforestation or reforestation” measures
    be approved, and, even then, such measures may only be approved
    in certain areas, under certain circumstances, and in the order of
    priorities set by NR § 5-1607. As a general rule, that order requires
    the applicant to afforest or reforest on the project site before turning
    to off-site measures. 2 When off-site measures are permitted, they
    “may include the use of forest mitigation banks which have been
    so designated in advance by the State or local forest conservation
    program which is approved by the Department.” NR § 5-
    1607(a)(3)(iii).
    B.       Permissible Methods and             Locations      for    Off-site
    Afforestation or Reforestation
    Under the statute, the “method” of off-site afforestation and
    reforestation “shall be selected in accordance with subsection (b),”
    and “the location shall be selected in accordance with subsection
    (d)[.]” NR § 5-1607(a)(3). As to the “method[s]” of off-site
    afforestation and reforestation, subsection (b) permits three:
    (1) Forest creation in accordance with a forest
    conservation plan using one or more of the
    following:
    2
    That general rule has exceptions. For example, under NR § 5-
    1607(a)(3)(i), the approving authority may permit “[o]ff-site
    afforestation or reforestation in the same watershed or in accordance
    with an approved master plan” when the applicant can meet either of two
    conditions. The first condition requires the applicant to “demonstrate[]
    that no reasonable on-site alternative exists.” NR § 5-1607(a)(3)(i). The
    second condition requires the applicant to show not only that on-site
    “priority areas for afforestation or reforestation”—such as areas adjacent
    to streams, bays, and critical habitats—have been planted in accordance
    with the conservation goals set forth in NR § 5-1607(d) but also that the
    proposed off-site afforestation or reforestation would yield
    “environmental benefits . . . [that] would exceed those derived from on-
    site planting.”
    Id. Another exception to
    the general sequence is that the
    approving authority “may allow an alternative sequence for a specific
    project if necessary to achieve the objectives of a local jurisdiction’s land
    use plans or policies or to take advantage of opportunities to consolidate
    forest conservation efforts.” NR § 5-1607(a)(4).
    70                                                   [105 Op. Att’y
    (i) Transplanted or nursery stock;
    (ii) Whip and seedling stock; or
    (iii) Natural regeneration . . . .
    (2) The use of street trees in a municipal
    corporation with a tree management plan, in
    an existing population center designated in a
    county master plan that has been adopted to
    conform with the Economic Growth,
    Resource Protection, and Planning Act of
    1992, or in any other designated area
    approved by the Department as part of a local
    program, under criteria established by the
    local program, subject to the approval of the
    Department, using:
    (i) Street trees as a permissible step in the
    priority sequence for afforestation or
    reforestation and, based on a mature canopy
    coverage, may grant full credit as a mitigation
    technique; and
    (ii) Acquisition as a mitigation technique of
    an off-site protective easement for existing
    forested areas not currently protected in
    perpetuity, in which case the afforestation or
    reforestation credit granted may not exceed
    50% of the area of forest cover protected.
    (3) When all other options, both on-site and
    off-site, have been exhausted, landscaping as
    a mitigation technique, conducted under an
    approved landscaping plan that establishes a
    forest at least 35 feet wide and covering at
    least 2,500 square feet of area.
    NR § 5-1607(b).
    As to the selection of the “location” of off-site afforestation
    and reforestation, subsection (d) sets priorities that primarily
    express “location” in terms of environmental features and goals,
    including “[e]stablish[ing] or enhanc[ing] forest buffers” that are
    adjacent to streams, bays, and critical habitats; “[e]stablish[ing] or
    increas[ing] existing forested corridors” at a width to “facilitate
    wildlife movement”; “[e]stablish[ing] plantings” to stabilize steep
    slopes; “[e]stablish[ing] buffers . . . adjacent to highways”;
    “[e]stablish[ing] forest areas adjacent to existing forests so as to
    increase the overall area of contiguous forest cover”; and “[u]s[ing]
    Gen. 66]                                                                 71
    native plant materials . . . when appropriate.” NR § 5-1607(d).
    Most of those specified areas correspond to the “sensitive area[s]”
    that local jurisdictions must identify in their comprehensive plans.
    See Md. Code Ann., Land Use (“LU”) § 1-101(o) (defining
    “sensitive area”). 3 The Act thus directs forest creation to the areas
    where forest cover would yield the most environmental benefits.
    C.       Mitigation Banking
    Under the Act, “[o]ff-site afforestation or reforestation may
    include the use of forest mitigation banks which have been so
    designated in advance by the State or local forest conservation
    program.” NR § 5-1607(a)(3)(iii). “Forest mitigation banking” is
    defined as “the intentional restoration or creation of forests
    undertaken expressly for the purpose of providing credits for
    afforestation or reforestation requirements with enhanced
    environmental benefits from future activities.” NR § 5-1601(o).
    The Act and DNR’s regulations, including the Model Forest
    Conservation Ordinance that DNR issued for local governments,
    then further elaborate on the concept.
    NR § 5-1610.1 sets out the broad mechanics of a mitigation
    banking program. Mitigation banks are permissible only in the
    priority areas listed in NR § 5-1607(d) or as identified in a local
    jurisdiction’s comprehensive plan, and they may not be used to
    “alter the sequence for retention, reforestation, or afforestation on
    a development site” set forth in NR § 5-1607. NR § 5-1610.1(c),
    (d). For example, forest mitigation bank credits may not be used
    to offset loss of forest when on-site forest can be retained. NR § 5-
    3
    Under the Land Use Article, local jurisdictions must include a
    “sensitive area element” in their comprehensive plans that includes
    “standards designed to protect sensitive areas from the adverse effects of
    development.” LU §§ 1-408 (generally applicable to home rule
    counties), 3-104 (generally applicable to municipalities and commissioner
    counties). As defined in the Land Use Article, “sensitive areas” include
    five specific types of areas that overlap with the priority areas identified
    in NR § 5-1607(d)—streams, wetlands, floodplains, critical wildlife
    habitat, steep slopes—as well as “agricultural or forest land intended for
    resource protection or conservation” and “any other area in need of
    special protection, as determined in a plan.” LU § 1-101(o). Before a
    local jurisdiction may adopt its comprehensive plan, DNR and the
    Department of the Environment must review the proposed plan to
    “determine whether [it] is consistent with the programs and goals of the
    departments.” LU §§ 1-408(c), 3-104(c).
    72                                                    [105 Op. Att’y
    1607(a). Credits also “may not be approved for debiting until
    construction of the mitigation bank is complete,” and the mitigation
    bank must “maintain sufficient credits in reserve to cover
    anticipated expenses of completion of the mitigation bank.” NR
    § 5-1610.1(g). A local or State program that establishes criteria
    “for the use and establishment of forest mitigation banks shall
    include protection and conservation in perpetuity of forest
    mitigation banks consistent with reasonable management plans,
    through methods that include easements, covenants, or similar
    mechanisms that shall be in place at the time credits are
    withdrawn.” NR § 5-1610.1(e).
    The Act further requires DNR to “develop standards and
    adopt regulations for the creation and use of forest mitigation
    banks, including criteria for tracking, crediting, maintaining,
    bonding, and reporting mitigation bank activities.” NR § 5-
    1610.1(a). DNR has done that by regulation. Under those
    regulations, a person who wishes to establish a mitigation bank
    must submit a forest mitigation bank plan to the approving
    authority for its approval. COMAR 08.19.04.09-1A; see also
    08.19.01.03B (defining a “forest mitigation bank plan” as a plan
    submitted to DNR or a local government with an approved local
    program). Additionally, persons seeking to create a mitigation
    bank must provide DNR with a maintenance agreement, a “bond or
    other alternate form of security to ensure that the trees will be cared
    for and maintained for 2 years or until sufficiently established,
    whichever is longer,” and “[t]he draft easement, covenants, or deed
    restrictions which will be sold to the developer when credits are
    withdrawn from the bank.” COMAR 08.19.04.09-1D. The “area
    of land on which the bank is planted shall be a minimum of 1 acre,”
    COMAR 08.19.04.09-1B, and credits may not be withdrawn “until
    the trees planted in the bank have successfully survived for 2 years
    from the date of planting unless the bank has planted 25 percent
    more trees than is required for the project,” COMAR 08.19.04.09-
    1F.
    DNR’s regulations also require mitigation banks to advance
    one or more of the eight “priorit[ies]” identified in NR § 5-1607(d).
    See COMAR 08.19.04.09-1E (listing the priorities by reference to
    particular areas, including, for example, to “[e]stablish or enhance
    forest buffers adjacent to intermittent and perennial streams and
    coastal bays to widths of at least 50 feet” or “[e]stablish forested
    areas adjacent to existing forests to increase the overall area of
    contiguous forest cover, when appropriate”). Thus, DNR’s
    regulations, like the Act, direct afforestation or reforestation
    Gen. 66]                                                            73
    through mitigation banking to the areas where the creation of forest
    would most benefit the environment.
    D.   The Model Forest Conservation Ordinance
    By regulation, DNR has issued a Model Forest Conservation
    Ordinance (“Model Ordinance”). See COMAR 08.19.03.01. The
    Model Ordinance gives local jurisdictions a template of the
    minimum State standards and requirements that they must include
    in their programs. It, like the statute, defines a “[f]orest mitigation
    bank” as “an area of land which has been intentionally afforested
    or reforested for the express purpose of providing credits for
    reforestation requirements.”
    Id., Model Ordinance Art.
    II, § 2.24-
    1. A “[f]orest mitigation bank agreement” means “an agreement
    entered into by an individual owning a forest mitigation bank and
    the Department or local government which commits the banker to
    certain procedures and requirements when creating and operating
    the forest mitigation bank.”
    Id., Model Ordinance Art.
    II, § 2.24-
    2. Under the model language, forest mitigation banks must
    “[a]fforest or reforest an area of land in accordance with a forest
    mitigation agreement,” “[u]se native plant materials for
    afforestation or reforestation unless inappropriate,” and “[c]ause
    trees to be planted” to “establish” or “enhance” certain buffers or
    “stabilize” certain slopes.
    Id., Model Ordinance Art.
    X-2,
    § 10.1.2B.
    The Model Ordinance also provides language regarding the
    three methods of afforestation or reforestation specified in NR § 5-
    1607(b). Regarding protective easements for already-existing
    forest, the Ordinance re-words § 5-1607(b) slightly. The Model
    Ordinance provides:
    In a municipal corporation with a tree
    management plan and in an existing
    population center designated in a county
    master plan that has been adopted to conform
    with the Economic Growth, Resource
    Protection, and Planning Act of 1992, or in
    any other designated area approved by the
    Department, the use of:
    (a) Street trees as a permissible step in the
    priority sequence for afforestation or
    reforestation and with a mature canopy
    coverage may be granted full credit as a
    mitigation technique; and
    74                                                        [105 Op. Att’y
    (b) Acquisition of an off-site protection
    easement on existing forested areas not
    currently protected in perpetuity as a
    mitigation technique, in which case the
    afforestation or reforestation credit granted
    may not exceed 50 percent of the area of forest
    cover protected[.]
    Art. IX, § 9.1A(2); see also COMAR 08.19.02.02O (elaborating on
    the afforestation and reforestation methods in the statute and
    allowing, in particular areas, for the “[u]se of street trees . . . or . . .
    [a]cquisition of protective easements on existing forested areas” as
    mitigation techniques).
    II
    Analysis
    A.    May a “Forest Mitigation Bank” Be Established from
    Already-existing Forest?
    In construing the Forest Conservation Act, we apply “the
    standard principles of statutory construction” articulated by the
    Court of Appeals:
    [O]ne looks first to the text of a statute, giving
    the text its ordinary meaning in context. The
    plain meaning of the text may be confirmed—
    or ambiguities in the text resolved—by an
    examination of the legislative history and a
    consideration of the consequences of
    alternative interpretations. The ultimate goal
    is to discern and implement the legislative
    purpose without reading into the statute what
    is not there and without reading out of the
    statute what is.
    Rodriguez v. Cooper, 
    458 Md. 425
    , 442 (2018). Thus, statutory
    language is not to be read “in a vacuum.” Lockshin v. Semsker, 
    412 Md. 257
    , 275 (2010) (internal citations omitted). Instead, “the
    plain language must be viewed within the context of the statutory
    scheme to which it belongs, considering the purpose, aim, or policy
    of the Legislature in enacting the statute.”
    Id. at 276.
         Here, you ask whether the Act “allow[s] forest mitigation
    banks that preserve existing forest but do not afforest or reforest.”
    In answering that question, we start with the text of the statute. The
    Gen. 66]                                                          75
    most relevant text on this point is the Act’s definition of “forest
    mitigation banking” to “mean[] the intentional restoration or
    creation of forests undertaken expressly for the purpose of
    providing credits for afforestation or reforestation requirements
    with enhanced environmental benefits from future activities.” NR
    § 5-1601(o). That text, read in accordance with its “plain
    meaning,” 
    Rodriguez, 458 Md. at 442
    , requires the would-be
    mitigation banker to meet two requirements. First, the banker must
    intend to create or restore a forest. Second, the banker must create
    or restore the forest “expressly for the purpose of providing credits
    for afforestation or reforestation requirements with enhanced
    environmental benefits from future activities.” It thus seems clear
    that a forest that already existed before its owner formed the
    intention to establish a mitigation bank—and that the owner merely
    intends to preserve—could not meet the definition of a “mitigation
    bank.”
    Nonetheless, because we are not to read statutory text in a
    vacuum, see 
    Lockshin, 412 Md. at 275-76
    , we will analyze the
    language of NR § 5-1601(o) in the context of the statutory scheme
    within which it falls to make sure that the broader context does not
    create any ambiguity. We will start with the most relevant statutory
    context—the mitigation banking scheme—and then look at the
    statute’s legislative purpose, as discernible from the legislative
    history. In the interest of completeness, we will also look at a now-
    abrogated provision of the Act that is instructive on the terms used
    (and not used) in NR § 5-1601(o), and, finally, at DNR’s
    regulations and model ordinance.
    1.    The Broader Mitigation Banking Scheme
    The mitigation banking scheme, set forth in NR § 5-1610.1,
    reinforces our reading of “forest mitigation bank” as excluding the
    mere preservation of existing forest. That section requires DNR to
    adopt regulations for the “creation and use” of mitigation banks,
    authorizes local jurisdictions to “develop procedures for
    establishing [the banks],” provides that mitigation bank credits
    “may not be approved for debiting until construction of the
    mitigation bank is complete,” and requires banks to “maintain
    sufficient credits in reserve to cover anticipated expenses of
    completion[.]” NR § 5-1610.1. The General Assembly’s use of
    the words “creation,” “establishing,” “construction,” and
    “completion” confirms that mitigation banks must be made up of
    76                                                   [105 Op. Att’y
    forest that is intentionally created or restored expressly to provide
    credits. See NR § 5-1601(o).
    2.   Legislative Purpose and Legislative History
    For additional context, we look next to the “purpose, aim, or
    policy of the Legislature” in enacting the mitigation banking
    scheme, 
    Lockshin, 412 Md. at 276
    , as may be evidenced by the
    legislative history, see 
    Rodriguez, 458 Md. at 442
    . Those
    considerations, too, confirm the Act’s plain-language requirement
    that mitigation banks be forest that is intentionally created or
    restored expressly for the purpose of providing credits, as opposed
    to already-existing forest.
    There is plenty of legislative history to consult, because the
    legislation that culminated in the enactment of the forest mitigation
    banking provisions was introduced in three successive years—
    1994, 1995, and 1996—before its eventual enactment in 1997. The
    scheme was modeled on the mitigation banking scheme for
    nontidal wetlands that the General Assembly had adopted in 1993,
    and it also followed the recommendations of an advisory group that
    the General Assembly had created in 1993 to suggest improvements
    to the Forest Conservation Act. See, e.g., Floor Report of the Senate
    Econ. and Envtl. Affairs Comm. on H.B. 1124, 1994 Leg., Reg.
    Sess. (explaining that the bill was “modeled on the wetlands
    mitigation banks” created by the 1993 legislation and “principally
    consist[ed] of” the Advisory Group’s recommendations).
    We begin with the nearly contemporaneous wetlands banking
    law. Maryland’s addition of mitigation banking to its nontidal
    wetlands statute followed a 1990 federal memorandum of
    agreement that instructed that mitigation banking could be used to
    offset a project’s impact on those wetlands. See Environmental
    Law Institute, Banks and Fees: The Status of Off-Site Wetland
    Mitigation in the United States 13 (Sept. 2002),
    https://www.eli.org/sites/default/files/eli-pubs/d12_08.pdf.  The
    agreement set forth a “sequence” of mitigation steps: “avoiding
    impacts, minimizing impacts, rectifying impacts, reducing impacts
    over time, and compensating for impacts.” Memorandum of
    Agreement Between the Environmental Protection Agency and the
    Department of the Army Concerning the Determination of
    Mitigation Under the Clean Water Act Section 404(b)(1)
    Guidelines, at 2 (1990). Under that agreement, the “[s]imple
    purchase or ‘preservation’ of existing wetlands resources,” could
    “in only exceptional circumstances be accepted as compensatory
    mitigation.”
    Id. at 4.
    Gen. 66]                                                             77
    Although Maryland eventually included mitigation banking
    in its wetlands statute, it did not include the mere off-site
    “preservation” of existing wetlands as a banking method. Rather,
    Maryland’s 1993 wetlands banking law precluded the use of
    existing wetlands as mitigation banks by defining “mitigation
    banking” as “wetland restoration, creation, or enhancement
    undertaken expressly for the purpose of providing compensation
    credits for wetland losses from future activities.” 1993 Md. Laws,
    ch. 347; see also Md. Code Ann., Envir. (“EN”) § 5-901(l). Thus,
    in 1993, the General Assembly apparently viewed mitigation
    banking as an offset measure whereby an applicant could purchase
    credits in a bank of new, restored, or enhanced wetlands as a
    substitute for the loss of wetlands caused by the applicant’s project,
    not as a measure whereby an applicant could rely on the
    preservation of existing wetlands to offset that loss.
    That same year, the General Assembly made changes to the
    Forest Conservation Act. As relevant here, the 1993 law created a
    Forest Conservation Advisory Group to recommend further
    changes before the 1994 session. 1993 Md. Laws, ch. 489. The
    Advisory Group recommended that mitigation banking be added to
    the Act as an offset measure and proposed the definition that, with
    some changes in format, is now codified at NR § 5-1601(o): “the
    intentional restoration or creation of forests undertaken expressly
    for the purpose of providing credits for afforestation or
    reforestation requirements with enhanced environmental benefits
    from future activities.” Report of the Advisory Group on Forest
    Conservation (Dec. 1, 1993) (“Advisory Group Report”) at 19. In
    doing so, the Advisory Group explained that the “purpose[s]” of
    mitigation banking would be the “creation of forest cover to meet
    mitigation requirements in advance of impacts,” “the combination
    of mitigation plantings for separate projects into a single receiving
    area,” and the “encourage[ment of] the creation of new forest areas
    in advance of forest removal,” particularly in environmentally
    sensitive areas where the new or restored forest areas would do the
    most good.
    Id. The Advisory Group
    did not propose the use of
    mitigation banking credits for the mere preservation or retention of
    existing forest. 4 Thus, the Advisory Group’s concept of mitigation
    4
    The Advisory Group’s minutes of its November 15, 1993 meeting
    state that “[s]ome discussion . . . centered on the concept of banking
    credit for protection of existing forested area.” Advisory Group Report,
    Appendix D. However, “[n]o consensus was reached,” and the members
    78                                                      [105 Op. Att’y
    banking—as a mechanism for the “restoration” or “creation” of the
    natural resource in an environmentally-useful way—largely
    reflected the similar concept that the General Assembly had
    adopted in the wetlands banking law. See EN § 5-901(l).
    The General Assembly took up the Advisory Group’s
    recommendations in 1994. See H.B. 1124, 1994 Leg., Reg. Sess.
    Like the Advisory Group, the General Assembly focused on the
    creation and restoration of forests for mitigation banks. For
    example, the Floor Report on House Bill 1124 explained that forest
    mitigation banking would “allow[] forests to be created and
    acreage to be held in reserve until ‘credits’ are withdrawn,
    compensating for an authorized loss of forests elsewhere” and that
    such banking would “reduce the impact on the State’s forests over
    time by compensating for impacts through replacement or the
    provision of substitute forest resources.” Floor Report for H.B.
    1124, 1994 Leg., Reg. Sess. The Floor Report further explained
    that the bill had been “modeled on the wetland mitigation banks
    created [in 1993].”
    Id. The Floor Report
    did not mention the mere
    “preservation” or “retention” of forests.
    After the bill did not pass that year, similar legislation was re-
    introduced every year until a bill was finally enacted in 1997. We
    have examined the bill files for each of these bills, and none of the
    history that we have seen suggests that the General Assembly
    contemplated “retention” as a permissible form of mitigation
    banking. Thus, based on what we have been able to find, the
    legislative history confirms that the General Assembly did not
    intend to authorize the retention of existing forest as a mitigation
    banking technique.
    3.    The Pilot Program for Retention Banking
    Also instructive is a now-abrogated provision that had created
    a separate banking program for the retention of certain forested
    land, because it further highlights the distinction, as understood by
    the General Assembly, between the mere retention of already-
    existing forest and forest created through afforestation or
    “agreed to review the banking proposal in greater detail and revisit it at
    the next meeting.”
    Id. Although various mitigation
    banking topics were
    addressed at the next meeting, the issue of awarding credits for existing
    forest apparently was not.
    Id., Minutes of November
    22, 1993 Meeting
    at 3. The Advisory Group’s final report did not include any
    recommendation that existing forests should qualify for treatment as
    “mitigation bank[s].”
    Gen. 66]                                                               79
    reforestation. Enacted in 2002 and abrogated two years later, that
    provision created a pilot program for “forest retention banks.”
    2002 Md. Laws, ch. 551 (emphasis added); see also former NR § 5-
    1610.2. As introduced, the bill would have amended NR § 5-
    1610.1—then, as now, the mitigation banking provision—to add a
    pilot program permitting landowners to bank already-existing areas
    planted with funds from the federal Conservation Reserve
    Enhancement Program (“CREP”). H.B. 895, 2002 Leg., Reg.
    Sess. 5 More specifically, the original bill would have required
    DNR to “establish a 2-year pilot program in Carroll and Frederick
    Counties that allows a person to use funds from [CREP] to create a
    forest mitigation bank.”
    Id. At DNR’s request,
    however, the bill was amended to refer to
    a “retention” bank instead of a “mitigation” bank and to be codified
    separately from the mitigation banking provision, as NR § 5-
    1610.2. See 2002 Md. Laws, ch. 551. DNR explained that the
    amendments were “needed” because the proposed banking of
    existing forest could not be “mitigation banking” within the Act’s
    definition of the term:
    The Forest Conservation Act’s forest
    mitigation banking provisions specifically
    allow for the intentional creation or
    restoration of forests expressly for the purpose
    of providing credits to meet mitigation
    requirements under the Forest Conservation
    Act (FCA). HB 895, as currently written,
    does not meet the condition of the tree
    planting occurring specifically to create a
    mitigation bank.
    5
    CREP, a joint federal-state program, pays farmers who enroll in the
    program “to voluntarily remove marginally productive and
    environmentally sensitive croplands and pasturelands from production
    to address targeted federal and state agricultural-related environmental
    concerns.” Dep’t of Nat. Res., “Conservation Has Its Rewards – CREP,”
    https://dnr.maryland.gov/wildlife/Documents/CREP_Start-to-Finish.
    pdf. The goal of the program has been to enable farmers to “protect
    water quality and create wildlife habitat without sacrificing income.”
    Id. Maryland’s CREP targets
    eligible lands in the Chesapeake Bay
    watershed for various measures, including restoring riparian buffers.
    80                                                       [105 Op. Att’y
    DNR Bill Report on H.B. 895 (March 13, 2002). 6 Thus, in 2002,
    DNR interpreted the definition of a “forest mitigation bank” to
    exclude an existing forest.
    Although this retention banking provision was automatically
    abrogated in 2005 based on a sunset provision in the law, see 2002
    Md. Laws, ch. 551, the provision informs our interpretation of NR
    § 5-1601(o) because it confirms what the definitions section of the
    Act already shows: The General Assembly gave “retention” a
    meaning distinct from that of “afforestation” and “reforestation.”
    To include “existing forest” in the definition of “forest mitigation
    banking,” we would thus have to add the word “retention” to NR
    § 5-1601(o)—a revision that would conflict with the fundamental
    principle of statutory interpretation that statutes should be read as
    enacted, without adding words. See 
    Rodriguez, 458 Md. at 442
    .
    4.   DNR’s Regulations
    Finally, DNR’s regulations confirm that a mitigation bank is
    created only by “afforesting” or “reforesting” an area in accordance
    with a plan that DNR has first approved. See COMAR
    08.19.04.09-1A (“A person may create a forest mitigation bank
    from which applicants may purchase credits by afforesting or
    reforesting an area of land in accordance with a forest mitigation
    bank plan which has been approved by the Department.”);
    COMAR 08.19.02.02Q(2) (“A local program shall require a forest
    mitigation bank to: (a) Afforest or reforest an area of land in
    accordance with an approved forest mitigation bank agreement; . . .
    and (e) Cause trees to be planted which [establish or enhance
    certain forestation or stabilize steep slopes].”).
    Those regulations do not provide that an existing forest may
    be converted to a mitigation bank simply by retaining the forest
    through an easement. To the same effect, DNR’s Model Ordinance
    6
    DNR further stated that the amendment to reflect “retention” would
    allow the bill to “dovetail[] more closely to the existing statute that
    allows for the offsite retention of existing forest (In other words, the
    forested stream buffer created under CREP is considered an existing
    forest).”
    Id. Although it is
    not clear exactly what DNR meant, it may be
    that DNR was observing that the retention of existing CREP buffers on
    agricultural lands would be more similar to the preservation of existing
    forest that is allowed in municipalities and certain other designated areas
    under NR § 5-1607(b)(2), which we will discuss further below, than to
    the intentional afforestation or reforestation required for mitigation
    banking.
    Gen. 66]                                                               81
    requires mitigation banks to “[a]fforest or reforest an area of land
    in accordance with a forest mitigation bank agreement,” “[u]se
    native plant materials for afforestation or reforestation unless
    inappropriate,” and “[c]ause trees to be planted” to “establish” or
    “enhance” certain buffers or “stabilize” certain slopes. COMAR
    08.19.03.01; Model Ordinance Art. X-2, § 10.1.2B. None of these
    provisions refers to “retention” as a way to establish a mitigation
    bank.
    We thus conclude that the Act means what it says when it
    defines “forest mitigation banking” to mean “the intentional
    restoration or creation of forests undertaken expressly for the
    purpose of providing credits for afforestation or reforestation
    requirements with enhanced environmental benefits from future
    activities.” NR § 5-1601(o). That definition precludes the use of
    pre-existing forest for mitigation banking. Instead, to be eligible
    for treatment as a “forest mitigation bank,” a forest must have been
    “intentional[ly]” created or restored “expressly” for that purpose.
    Id. B. Does the
    Separate Statutory Authorization for the
    Acquisition of a Protective Easement for Existing Forest in
    Certain Areas Implicitly Permit Mitigation Banking of
    Existing Forest?
    The only remaining question is whether NR § 5-1607(b)(2),
    which permits the use of a protective easement for existing forest
    as a method for offsetting the loss of forest under certain
    circumstances, authorizes the functional equivalent of mitigation
    banking for existing forest. As the County Attorney has noted,
    some local jurisdictions, in ordinances approved by DNR, may be
    interpreting that provision to allow existing forested areas to be
    treated like “mitigation banks.” 7 For the reasons explained below,
    7
    For example, an explanation of Montgomery County’s mitigation
    banking program posted on its Planning Department’s website states:
    “Banks may be created by planting a new forest or by protecting an area
    where forest is already established. . . . Developers who buy credits from
    a bank that protects an established forest must buy twice the mitigation
    requirement shown on their forest conservation plan worksheet.”
    Montgomery County Dep’t of Planning, Forest Mitigation Banks,
    https://montgomeryplanning.org/planning/environment/forest-conser-
    vation-and-trees/ forest-conservation-banks/.         Frederick County’s
    program also seems to permit the creation of a “bank” from “existing
    82                                                      [105 Op. Att’y
    we conclude that the protective-easement method that is authorized
    under NR § 5-1607(b)(2) in certain areas is distinct from mitigation
    banking. Thus, although the protective-easement method might
    have elements and standards in common with mitigation banking,
    the elements and standards for this separate method must be
    consistent with the language and purpose of NR § 5-1607(b)(2),
    including that provision’s express limitation on the areas in which
    the method is permissible as a mitigation technique.
    Section 5-1607(b) requires programs to establish “[s]tandards
    for meeting afforestation or reforestation requirements” and
    requires them to use at least one of three “methods.” See Part 
    I.B, supra
    . The second permissible method is the most relevant here
    because one of its elements pertains to protective easements for
    existing forests. That method is:
    The use of street trees in a municipal
    corporation with a tree management plan, in
    an existing population center designated in a
    county master plan that has been adopted to
    conform with the Economic Growth,
    Resource Protection, and Planning Act of
    1992, or in any other designated area
    approved by the Department as part of a local
    program, under criteria established by the
    local program, subject to the approval of the
    Department, using:
    (i) Street trees as a permissible step in the
    priority sequence for afforestation or
    reforestation and, based on a mature canopy
    coverage, may grant full credit as a mitigation
    technique; and
    (ii) Acquisition as a mitigation technique of
    an off-site protective easement for existing
    forested areas not currently protected in
    perpetuity, in which case the afforestation or
    reforestation credit granted may not exceed
    50% of the area of forest cover protected.
    NR § 5-1607(b)(2).
    forest.” See Frederick County Ordinance § 1-21-29 (“The Frederick
    County Forest Banking Program allows a person to create new forest
    areas or designate certain existing forest areas to be held in reserve (or
    ‘banked’), in order to be used to meet future forestation requirements
    imposed on regulated activities by this chapter.”).
    Gen. 66]                                                            83
    As a first step, we consider what NR § 5-1607(b)(2) means.
    At first glance, it seems hopelessly ambiguous; paragraph (i)
    contains one verb without any subject, and the introductory clause
    contains a series of nested modifying phrases without clearly
    identifying the antecedent for each. But once the initial series of
    prepositional phrases (all relating to the areas in which the method
    is permissible) is fenced off, and once the references to the credit
    formulas are recognized as parentheticals relating only to credits,
    the overall structure of the provision emerges. Boiled down that
    way, NR § 5-1607(b)(2) provides, in essence, for the following
    method based on “standards” adopted by the local government:
    The use of street trees [in certain areas] under
    criteria established by the local program,
    subject to the approval of the Department,
    using:
    (i) Street trees as a permissible step in the
    priority sequence for afforestation or
    reforestation [which gets full credit for
    afforestation]; and
    (ii) Acquisition as a mitigation technique of
    an off-site protective easement for existing
    forested areas not currently protected in
    perpetuity, [which gets only half credit].
    Id. The statute also
    provides that this method is only available “in
    a municipal corporation with a tree management plan, in an
    existing population center designated in a county master plan that
    has been adopted to conform with the Economic Growth, Resource
    Protection, and Planning Act of 1992, or in any other designated
    area approved by the Department as part of a local program.” NR
    § 5-1607(b)(2).
    Even boiled down in this way, however, there remains
    ambiguity in the provision. Although subparagraph (i) means that
    afforesting or reforesting using street trees will be given full credit
    (if conducted in any of the permissible locations and in accordance
    with the approving authority’s established standards), it is less than
    clear whether the acquisition of a protective easement under
    subparagraph (ii) also somehow requires “[t]he use of street trees.”
    On one hand, purely as a grammatical matter, the entirety of
    paragraph (b)(2), including the protective-easement provision, is
    conditioned on “[t]he use of street trees.” On the other hand, the
    protective-easement technique in (b)(2)(ii) allows for the acquisition
    84                                                           [105 Op. Att’y
    of a protective easement “for existing forested areas,” a phrase that
    seems inconsistent with “[t]he use of street trees.” NR § 5-
    1607(b)(2). The term “street trees,” although not defined in the
    statute, is ordinarily understood to refer to trees planted in the
    narrow strip, or “tree lawn,” between a street or roadway and a
    sidewalk or other infrastructure. See Dep’t of Nat. Res., State
    Forest Conservation Technical Manual (3d ed. 1997) at 3-41
    through 3-42 (setting the minimum widths of a tree lawn needed
    for trees of various sizes). And such a “tree lawn” would not rise
    to the level of a “forested area” under any ordinary understanding
    of those words.
    Moreover, DNR has never read the provision to require the
    “use of street trees” for the protective-easement technique in
    (b)(2)(ii). Instead, the agency has long read the provision as a
    separate method. See COMAR 08.19.02.02O (providing in the
    disjunctive for the “[u]se of street trees . . . or . . . [a]cquisition of
    protective easements on existing forested areas” (emphasis
    added)). Indeed, when what is now NR § 5-1607(b)(2) was
    originally enacted in 1993—before the mitigation banking
    provisions were enacted—it was a free-standing provision that
    could not possibly have been read to condition the protective-
    easement method on the use of street trees. 8 Then, as part of the
    8
    At the time, it provided:
    In a municipal corporation with a tree
    management plan, in an existing population
    center designated in a county master plan that has
    been adopted to conform with the Economic
    Growth, Resource Protection, and Planning Act
    of 1992, as enacted by chapter 437 of the Acts of
    the General Assembly of 1992, or in any other
    designated area approved by the Department as
    part of a local program, a local program may,
    subject to the approval of the Department,
    establish criteria for the use of:
    (i) Street trees as a permissible step in the
    priority sequence for afforestation or reforestation
    and, based on a mature canopy coverage, may
    grant full credit as a mitigation technique; and
    (ii) The acquisition of an off-site protective
    easement for existing forested areas not currently
    protected as a mitigation technique, but the
    afforestation or reforestation credit granted may
    Gen. 66]                                                            85
    same 1997 legislation that created the mitigation banking program,
    NR § 5-1607(b)(2) was moved to its current location, and the
    words “street trees” were added at the beginning to modify the
    entire paragraph, not just (b)(2)(i). 1997 Md. Laws, ch. 559.
    Because there was no explanation for that change in the legislative
    history, DNR has apparently viewed the addition of the phrase
    “[t]he use of street trees” at the beginning of (b)(2) as a drafting
    error. The agency retained the original structure—street trees as
    one option and protective easements over existing forests as
    another—when it proposed regulations to update the Model
    Ordinance to comply with the 1997 amendments. See 25 Md. Reg.
    630 (April 10, 1998); see also 25 Md. Reg. 946 (June 15, 1998)
    (adopting the proposed regulation).
    Although it is generally not permissible to read language out
    of a statute, Kushell v. Department of Natural Res., 
    385 Md. 563
    ,
    576-577 (2005), there is an exception to that general rule when the
    words in question “appear to have been inserted through
    inadvertence or mistake” and “are incapable of any sensible
    meaning or are repugnant to the rest of the statute and tend to
    nullify it,” Pressman v. State Tax Comm’n, 
    204 Md. 78
    , 88 (1954);
    see also Kaczorowski v. Mayor & City Council of Baltimore, 
    309 Md. 505
    , 520 (1987) (declining to read a “drafting error to
    frustrate” the Legislature’s intent). Here, given that the phrase
    “[t]he use of street trees” does not appear to have any “sensible
    meaning,” 
    Pressman, 204 Md. at 88
    , as applied to the protective-
    easement method for existing “forested areas,” we think that a court
    would likely defer to DNR’s longstanding interpretation that “[t]he
    use of street trees” does not modify the protective-easement
    method in (b)(2)(ii).
    In addition, the only legislative history that we have found on
    this point supports DNR’s interpretation. In both the House and
    Senate floor reports, the authorization for “street trees” and
    “protective easements” as mitigation methods describes them as
    separate things, despite the language in the bill adding “[t]he use of
    street trees” to the beginning of (b)(2). See, e.g., Report of the
    Senate Econ. and Envtl. Affairs Comm. on S.B. 33, 1997 Leg.,
    not exceed 50% of the area of the forest cover
    protected.
    1993 Md. Laws, ch. 489. As we will explain below, this language
    reflected DNR’s interpretation of the Act, as set forth in a Memorandum
    of Understanding with the Maryland Municipal League in January 1993.
    86                                                      [105 Op. Att’y
    Reg. Sess., at 3 (“In certain municipal areas and designated growth
    areas, street trees, the acquisition of a protective easement for
    existing forested areas, and certain landscaping techniques will
    now be allowed under the Act.”); Report of the House Envtl.
    Matters Comm. on S.B. 33, 1997 Leg., Reg. Sess., at 2 (“In
    municipal areas and designated growth areas, street trees, the
    acquisition of off-site easements for existing forested areas, and
    certain landscaping will now be allowed under the Act.”). Thus, it
    appears from the legislative history that the Legislature would have
    understood the two methods as separate alternatives.
    In any event, even if the protective-easement method in
    (b)(2)(ii) is not limited to the “use of street trees,” that does not
    mean that it authorizes the functional equivalent of mitigation
    banking. Instead, we conclude from both the purpose and the
    legislative history of NR § 5-1607(b)(2) that the provision neither
    alters, nor even bears on, the plain meaning of the mitigation
    banking provisions in NR §§ 5-1601(o) and 5-1610.1. 9 Thus, in
    our view, § 5-1607(b)(2) does not authorize the owner of an
    existing forest to place an easement on that forested land in order
    to sell “mitigation banking” credits to developers. We reach that
    conclusion for two reasons. One has to do with timing; the other
    has to do with the purpose of each provision.
    The timing of the two bills is particularly informative on the
    General Assembly’s intent when it enacted the first version of what
    is now NR § 5-1607(b)(2). The original version of NR § 5-
    1607(b)(2) was enacted in 1993, four years before the Act included
    mitigation banking in any form. See 1993 Md. Laws, ch. 489. The
    legislative history of that original version shows that it was
    primarily intended to address the difficulties local governments
    were having in applying the Act’s afforestation and reforestation
    requirements in municipalities, where there is little open space
    available for planting, and in areas planned for cluster
    development. See, e.g., Written Testimony of the Maryland
    Municipal League (“MML”) on S.B. 915 (March 23, 1993)
    9
    Due to the COVID-19 pandemic, we have not been able to access
    the recordings of the floor debates over either the 1993 legislation that
    created the predecessor of NR § 5-1607(b)(2) or the 1997 legislation that
    authorized mitigation banking. We therefore provide our opinion on
    these matters with the caveat that there is a possibility that those floor
    debates could shed additional light on the Legislature’s understanding of
    these provisions.
    Gen. 66]                                                                87
    (referring to municipalities’ need for guidance in applying the Act
    “in the largely developed and frequently urbanized settings that are
    found within municipal corporate limits”). 10
    In early 1993, DNR had attempted to address those problems
    and other questions about the implementation of the 1991 Act by
    entering into a Memorandum of Understanding (“MOU”) with
    MML. See, e.g., id.; see also Written Testimony of Maryland
    Association of Counties (“MACo”) on S.B. 915 (April 1, 1993)
    (describing the MOU). In the MOU, DNR “agree[d] to” five
    “interpretations of the Act and its associated regulations.”
    Memorandum of Understanding between Department of Natural
    Resources and Maryland Municipal League (Jan. 13, 1993). As
    relevant here, the first “interpretation” addressed the use of street
    trees and existing forested areas “within municipal corporate
    limits”:
    The use of (a) off-site easements at a two-for-
    one retention to clearance ratio to protect
    existing forested areas, (b) street trees and (c)
    on-site landscaping are acceptable steps in the
    priority sequence for afforestation and
    reforestation    techniques      used      within
    municipal corporate limits and use of street
    trees and on-site landscaping may include full
    credit as a mitigation technique based on
    projected mature canopy coverage[.]
    Id. Shortly thereafter, Senate
    Bill 915 was introduced partly to
    codify provisions of the MOU. See Written Testimony of MACo
    on S.B. 915 (April 1, 1993). As the Floor Report explained:
    The bill further provides that for a
    municipality with a tree management plan and
    designated in a county master plan as an
    10
    Pre-amendment, the Act had set out a fairly rigid afforestation or
    reforestation sequence that gave local jurisdictions little discretion—
    when addressing applications for clustered development—to approve
    off-site afforestation that would be more beneficial than on-site planting.
    See Lawrence R. Liebesman & Karen M. Singer, Maryland Growth and
    Chesapeake Bay Protection Act: The View from the Development
    Community, 1 U. Balt. J. Envtl. L. 43, 61 (1991).
    88                                                     [105 Op. Att’y
    existing population center in conformance
    with the Economic Growth, Resource
    Protection, and Planning Act of 1992, or in
    any other area designated by the Department
    as part of a local program, the program may
    establish criteria for using street trees for full
    credit as a mitigation technique; and for using
    the acquisition of an off-site protective
    easement for existing forested areas not
    currently protected as a mitigation technique
    (for credit not to exceed 50% of the area of the
    forest cover protected).
    Floor Report on S.B. 915, 1993 Leg., Reg. Sess.; see also
    Written Testimony of MML on S.B. 915 (March 23, 1993) (noting
    that the bill “clarifies the permissive authority for local
    governments to use as mitigation techniques street trees and also
    off-site protective easements in municipal corporate limits,
    unincorporated urban centers, and other areas approved by
    [DNR]”). The 1993 legislation was thus enacted to address a
    specific problem for projects in urbanized locations and other
    specially designated areas as approved by DNR, not to broadly
    authorize applicants to purchase easements in existing forest
    instead of creating new forest to offset the effects of their
    development projects.
    Four years later, the General Assembly amended the Act to
    establish mitigation banking as an offset measure and, in the course
    of doing so, also revised NR § 5-1607(b), among other provisions.
    See 1997 Md. Laws, ch. 559. The new law directed mitigation
    banking to environmentally sensitive “priority areas,” such as
    stream buffers, floodplains, and critical wildlife habitats, as well as
    to areas where afforestation or reforestation would create larger
    blocks of contiguous forest. See NR §§ 5-1607(d) (listing the
    priority areas and goals), 5-1610.1(c) (permitting mitigation banks
    only in priority areas identified in § 5-1607(d) or the local
    jurisdiction’s comprehensive plan). In the same legislation, the
    General Assembly also restructured and amended NR § 5-
    1607(b)(2) to preface it with the phrase “[t]he use of street trees.”
    1997 Md. Laws, ch. 559. Although that provision, as enacted,
    retained the reference to “[a]cquisition as a mitigation technique of
    an off-site protective easement,” the provision then, as now, did not
    mention mitigation banking credits and was not codified with the
    separate provisions on mitigation banking.
    Gen. 66]                                                             89
    In short, nothing in the legislative history of the 1993
    precursor to NR § 5-1607(b)(2)(ii) suggests that the General
    Assembly viewed those “protective easements” as part of the not-
    yet-existent mitigation banking scheme. And nothing in the 1997
    revisions that created the mitigation banking scheme suggests that
    the General Assembly believed that NR § 5-1607(b)(2) already
    authorized the use of existing forests as mitigation banks. Instead,
    the 1997 law separately created mitigation banks and expressly
    stipulated that mitigation banks must be created or restored
    expressly for the purpose of providing mitigation-bank credits.
    This lack of overlap between NR § 5-1610.1—the mitigation-
    banking approach—and NR § 5-1607(b)(2)—the protective-
    easement approach—makes sense in light of the different purposes
    of the two provisions. The purpose of the mitigation banking
    provision was to provide landowners with incentives to create
    forest in “priority areas”—the areas where forest would provide the
    most environmental benefits—as a way to meet afforestation and
    reforestation requirements and to encourage the creation of large
    blocks of conserved forest. See NR § 5-1610.1. 11 By contrast, the
    primary purposes of the protective-easement provision were, first,
    to provide flexibility for local governments to cluster development
    so as to conserve open spaces and, second, to enable existing
    afforestation and reforestation requirements to be met in densely-
    populated areas without sufficient space in which to afforest or
    reforest.
    Put another way, although the two methods may be
    implemented through similar types of protective instruments, they
    are separate, and each has its own set of requirements. The most
    obvious difference is that the retention of off-site existing forest
    under NR § 5-1607(b)(2)(ii) is entitled only to half-credit as a
    mitigation technique, while mitigation banking is entitled to full
    credit. But another important difference is that the preservation-
    11
    The General Assembly has created various incentives to encourage
    landowners to preserve and maintain existing forests, including tax
    incentives. See, e.g., Md. Code Ann., Tax-Prop. § 8-211 (generally
    providing for the freezing of the assessed value of forest land managed
    under a Forest Conservation and Management Program agreement with
    DNR); Md. Code Ann., Tax-Gen. § 10-208(i) (providing an income tax
    modification for certain reforestation and timber stand improvements).
    We see no indication from the legislative history or the text of NR § 5-
    1601(o) that mitigation banking was intended to be one of those
    incentives.
    90                                                   [105 Op. Att’y
    of-existing-forest method is permissible only for developments in
    certain specified areas, namely, “in a municipal corporation with a
    tree management plan, in an existing population center designated
    in a county master plan that has been adopted to conform with the
    Economic Growth, Resource Protection, and Planning Act of 1992,
    or in any other designated area approved by the Department as part
    of a local program.” NR § 5-1607(b)(2); see also COMAR
    08.19.02.02O (noting that this method may be used only “for specific
    development projects which are located in: (a) Municipalities which
    adopt a tree care protection ordinance or master plan for trees
    planted in public rights-of-way or planted in accordance with this
    regulation; (b) An existing area as designated under an adopted
    local land use plan which meets the standards of Article 66B,
    §§ 3.05–3.06, Annotated Code of Maryland; or (c) Specific areas
    designated in a local program subject to approval by the
    Department.”).
    Although the method is not limited solely to municipalities or
    existing population centers (because the method may be used in
    “other designated area[s],” if approved by DNR), the General
    Assembly presumably did not intend “other designated area[s]” to
    include an entire county or anywhere in that county, without limit.
    See COMAR 08.19.02.02O (providing that the method applies in
    “[s]pecific areas designated in a local program,” subject to DNR’s
    approval (emphasis added)). Rather, “when general words in a
    statute follow the designation of particular things or classes of
    subjects or persons, the general words will usually be construed to
    include only those things or persons of the same class or general
    nature as those specifically mentioned.” In re Wallace W., 
    333 Md. 186
    , 190 (1993) (quoting Giant of Md. v. State’s Attorney, 
    274 Md. 158
    , 167 (1975)). That is particularly true when, as here, the final
    term in the list is “preceded by the word ‘other,’ which is a standard
    grammatical cue that a term is meant to encompass what came
    before it.” Harleysville Preferred Ins. Co. v. Rams Head Savage
    Mill, LLC, 
    237 Md. App. 705
    , 728-29 (2018).
    Application of those principles here suggests that any “other
    designated area” must be “of the same class or general nature,” In
    re Wallace 
    W., 333 Md. at 190
    , as municipalities and existing
    population centers, the areas that are specifically designated in the
    statute. At the least, that means that a “designated area” must be a
    specific, identifiable area within the county, not the county as a
    whole. See COMAR 08.19.02.02O. And, in our view, it also
    means that, as with municipalities and existing population centers,
    there must be a special need—particular to that area—for the street-
    trees and protective-easement methods to apply there, such as, for
    Gen. 66]                                                           91
    example, the jurisdiction’s decision to prioritize the area for
    clustered development or a lack of space there to meet afforestation
    requirements using other methods. Thus, although identifying the
    types of areas that DNR may approve is beyond the scope of this
    opinion, one example of an area that might qualify as an “other
    designated area” is a planned growth area that is outside of an
    existing population center. See Report of the Senate Econ. and
    Envtl. Affairs Comm. on S.B. 33, 1997 Leg., Reg. Sess., at 3
    (noting that the method would apply “[i]n certain municipal areas
    and designated growth areas” (emphasis added)); Report of the
    House Envtl. Matters Comm. on S.B. 33, 1997 Leg., Reg. Sess., at
    2 (noting that the method would apply “[i]n municipal areas and
    designated growth areas” (emphasis added)).
    That reading is also consistent with the apparent purposes of
    this method, which were to allow existing afforestation and
    reforestation requirements to be met in densely-populated areas
    and to allow for cluster development that preserved open space, as
    well as with the conditional flexibility that NR § 5-1607(a)(4)
    affords local jurisdictions to alter the sequence of mitigation
    measures “if necessary to achieve the objectives of a local
    jurisdiction’s land use plans or policies or to take advantage of
    opportunities to consolidate forest conservation efforts.” By
    contrast, interpreting the method to apply anywhere in a county,
    without limit, would threaten to undermine the broader goals of the
    Act, which we have described as a “comprehensive effort to stem
    the loss of the State’s forest cover.” 86 Opinions of the Attorney
    General 72, 74 (2001).
    Whatever the phrase “other designated area” means, however,
    it is clear that any such area must actually be “designated” by the
    jurisdiction and approved by DNR before the method can apply
    there. Although the Act does not specify exactly how that approval
    process is to work, the context and history of that provision, as well
    as DNR’s role in reviewing local jurisdictions’ forest conservation
    programs and land use plans, suggest that the General Assembly
    expected the “designat[ion]” to be done through formal planning
    processes, not on an ad hoc basis for each development project.
    The term “designate,” after all, connotes a formal adoption of some
    sort. See, e.g., Foley v. K. Hovnanian at Kent Island, LLC, 
    410 Md. 92
                                                         [105 Op. Att’y
    128, 133 (2009) (referring to categories of development areas that
    have been “designated” in county’s critical area plan). 12
    Of course, in the specially designated areas where this method
    is permissible, a local jurisdiction has some discretion to determine
    the applicable “standards” and “criteria,” subject to DNR approval.
    See NR § 5-1607(b) (providing that “[s]tandards for meeting
    afforestation or reforestation requirements” using the listed
    methods, including the protective-easement method, “shall be
    established by the State or local program”); NR § 5-1607(b)(2)
    (providing that the local jurisdiction is to adopt the method “under
    criteria established by the local program, subject to the approval of
    the Department”). Local jurisdictions also generally may adopt
    “requirements or standards” for their programs that are “more
    stringent” than those in the Act. 100 Opinions of the Attorney
    General at 125 (quoting NR § 5-1603). Taken together, those
    provisions suggest that local jurisdictions may be able to import
    certain requirements, standards, and mechanisms that apply to
    mitigation banking into this separate method for the preservation
    of existing forest under NR § 5-1607(b)(2).
    In our opinion, however, a local jurisdiction’s discretion to
    establish “standards” and “criteria” for the protective-easement-
    for-existing-forest method provided by NR § 5-1607(b)(2)(ii) does
    not include the authority to turn that method into “mitigation
    banking” as defined by NR § 5-1601(o) and provided by NR § 5-
    1610.1. Although comprehensive guidance about the limits of a
    local program’s discretion under NR § 5-1607(b)(2) is again
    beyond the scope of your request, the requirements for that method
    in a local program must, at a minimum, be as stringent as those in
    the statute. That is, the method must be limited to developments in
    permissible areas and to “[a]cquisition as a mitigation technique of
    an off-site protective easement for existing forested areas not
    currently protected in perpetuity.” NR § 5-1607(b)(2)(ii).
    To be clear, as long as the method is limited to permissible
    areas, the language in NR § 5-1607(b)(2)(ii) might be broad enough
    to allow a local jurisdiction to adopt a program under which an
    applicant (i.e., the developer) can pay another property owner to
    put that other owner’s existing forest under a protective easement
    and to do so using vocabulary, standards, and criteria that might be
    similar to those used in mitigation banking. However, a local
    jurisdiction should take care not to simply import the mitigation
    banking scheme into this method wholesale without first
    12
    It is not clear to us whether DNR has actually been asked to approve
    (or has been approving) any such designated areas.
    Gen. 66]                                                           93
    determining whether each of the elements is consistent with the
    statutory requirements for this separate method. For example, there
    is a serious question as to whether an applicant’s purchase of a
    “credit” in existing forest that had already been placed under a
    permanent protective easement in advance (as is permissible for
    mitigation banking), rather than as a direct result of the applicant’s
    development project, could qualify as an offset measure under this
    method. That is because, by the time the developer is seeking to
    “acqui[re]” such an interest in existing forest “as a mitigation
    technique,” the forested area would already have been “protected
    in perpetuity,” which seems to conflict with the requirement in NR
    § 5-1607(b)(2)(ii) that the area not already be protected.
    We thus conclude that while NR § 5-1607(b)(2)(ii) may under
    certain circumstances permit the use of protective easements for
    existing forested land as an offset measure in municipalities,
    existing population centers, and certain other areas designated by
    the local government and approved by DNR, that method is not
    “mitigation banking” as defined by the Act.
    III
    Conclusion
    In our opinion, the plain language of the Forest Conservation
    Act makes clear that the only forests in Maryland that are eligible
    for treatment as “forest mitigation banks” from which developers
    may buy credits for that offset method are forests that were
    “intentional[ly]” created or restored “expressly” for that purpose
    and located in accordance with the Act’s “priority” location
    provisions. NR §§ 5-1601(o), 5-1601.1(c). Although existing trees
    that are preserved and protected in accordance with NR § 5-
    1607(b)(2)(ii) might meet the Act’s requirements in a municipality,
    existing population center, or other designated area that a local
    jurisdiction has designated with DNR’s approval as part of a
    program approved by DNR—and although a local program’s
    implementation of that method might have elements in common
    with mitigation banking—the preservation of those trees would not
    qualify for treatment as a “mitigation bank.”
    Brian E. Frosh
    Attorney General of Maryland
    Ann MacNeille
    Assistant Attorney General
    Patrick B. Hughes
    Chief Counsel, Opinions & Advice