Philip Morris USA, Incorporated v. Thomas Vilsack , 736 F.3d 284 ( 2013 )


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  •                                 PUBLISHED
    UNITED STATES COURT OF APPEALS
    FOR THE FOURTH CIRCUIT
    No. 12-2498
    PHILIP MORRIS USA, INCORPORATED,
    Plaintiff - Appellant,
    v.
    THOMAS J. VILSACK, Secretary of Agriculture; UNITED STATES
    DEPARTMENT OF AGRICULTURE,
    Defendants – Appellees,
    CIGAR ASSOCIATION OF AMERICA, INCORPORATED,
    Intervenor/Defendant – Appellee.
    Appeal from the United States District Court for the Eastern
    District of Virginia, at Richmond.  Henry E. Hudson, District
    Judge. (3:11-cv-00087-HEH)
    Argued:   September 19, 2013                 Decided:   November 20, 2013
    Before DUNCAN and THACKER, Circuit Judges, and Gina M. GROH,
    United States District Judge for the Northern District of West
    Virginia, sitting by designation.
    Affirmed by published opinion. Judge Duncan wrote the opinion,
    in which Judge Thacker and Judge Groh joined.
    ARGUED: Lauren R. Goldman, MAYER BROWN, LLP, New York, New York,
    for Appellant.    Sydney Foster, UNITED STATES DEPARTMENT OF
    JUSTICE, Washington, D.C.;   Daniel Gordon Jarcho, MCKENNA, LONG
    & ALDRIDGE, LLP, Washington, D.C., for Appellees. ON BRIEF: Dan
    Himmelfarb, Richard P. Caldarone, MAYER BROWN LLP, Washington,
    D.C., for Appellant. Neil H. MacBride, United States Attorney,
    OFFICE OF THE UNITED STATES ATTORNEY, Alexandria, Virginia;
    Stuart F. Delery, Acting Assistant Attorney General, Mark B.
    Stern, Civil Division, UNITED STATES DEPARTMENT OF JUSTICE,
    Washington, D.C., for Appellees.
    2
    DUNCAN, Circuit Judge:
    Philip Morris brings this appeal seeking review of a United
    States    Department          of    Agriculture         decision        regarding      the
    implementation        of     the   Fair   and      Equitable    Tobacco       Reform   Act
    (“FETRA”).       Pub. L. 108-357 § 601, 
    118 Stat. 1418
    , 1521 (2004)
    (codified at 
    7 U.S.C. §§ 518
     et seq.).                      FETRA instructs USDA to
    levy certain assessments against manufacturers and importers 1 of
    tobacco products.            Philip Morris challenges USDA’s decision to
    use 2003 tax rates instead of current tax rates in calculating
    how these assessments are to be allocated across manufacturers
    of different tobacco products.                     The district court concluded
    that USDA’s decision was based upon a reasonable interpretation
    of FETRA and granted USDA’s motion for summary judgment.                               For
    the reasons that follow, we affirm.
    I.
    In 2004, Congress enacted FETRA to end the system of quotas
    and   other     price      supports    that       tobacco    growers    in    the   United
    States    had    enjoyed       since      the      passage    of   the       Agricultural
    Adjustment      Act     of    1938.       It      chose,     however,    to     ease   the
    transition from the old quota system by replacing it with a
    1
    For brevity’s sake, we will refer solely to manufacturers.
    “Manufacturers” may therefore be taken to mean “manufacturers
    and importers.”
    3
    temporary system of periodic payments to tobacco growers and
    other holders of tobacco quotas.                  The payments began in 2005 and
    are to cease in 2014.              See 7 U.S.C. §§ 518a & 518b.                       FETRA
    created the Tobacco Trust Fund to fund these payments.                             The fund
    is administered by the Commodity Credit Corporation (“CCC”), a
    government corporation administered by USDA, and funded with CCC
    assets   as    well    as    assessments          imposed        on    manufacturers     of
    tobacco products.        7 U.S.C. § 518e.                 At issue in this case is
    the   permissibility        of   USDA’s      chosen       method      for   making    those
    assessments.
    A.
    Each    year,    FETRA     requires         USDA     to    determine     the    total
    amount   of    funds   that      must   be       raised        through   the   assessment
    process in order to make the payments required for that year
    under 7 U.S.C. §§ 518a & 518b and to cover other fund expenses.
    7   U.S.C.    § 518d(b)(2).         Then,        USDA     is    to    follow   a   two-step
    procedure to determine what portion of that total amount is to
    be paid by each manufacturer of tobacco products.
    In the first step of that procedure, USDA is instructed to
    calculate the percentages of the total national assessment to be
    paid collectively by the manufacturers of each class of tobacco
    product:      cigarettes,        cigars,         snuff,        roll-your-own       tobacco,
    chewing tobacco, and pipe tobacco.                      7 U.S.C. § 518d(c).           Then,
    at step two, USDA is to determine each manufacturer’s individual
    4
    liability by multiplying its market share within each class by
    that class’s total assessment burden as calculated in step one.
    7 U.S.C. §§ 518d(e),(f).            USDA performs these calculations in an
    initial determination at the beginning of each year, and then
    collects the resulting amounts from manufacturers in quarterly
    payments.       Described at this level of abstraction, the procedure
    seems       simple,   but   this   veneer         of   simplicity   dissolves    under
    closer examination.
    1.
    Congress’s instructions for determining each class’s total
    assessment       burden     are     sparse.             FETRA   provides       specific
    percentages of the assessment burden to be allocated to each of
    the six classes of tobacco product in fiscal year 2005.                              7
    U.S.C.      § 518d(c)(1).         But   for       subsequent    years,   the    statute
    instructs only that these percentages are to be adjusted “to
    reflect changes in the share of gross domestic volume” held by
    each class of product.             7 U.S.C. § 518d(c)(2).            “Gross domestic
    volume,” in turn, is defined as the volume of product “removed
    into commerce” 2 and subject to federal excise taxes or import
    tariffs at the time of removal.               7 U.S.C. § 518d(a)(2)(A).
    2
    FETRA uses the Internal Revenue Code                         definition for
    “removal”: “the removal of tobacco products or                      cigarette papers
    or tubes, or any processed tobacco, from the                        factory or from
    internal revenue bond . . . , or release from                       customs custody,
    and shall also include the smuggling or                              other unlawful
    (Continued)
    5
    Volumes    of    different      classes            of     tobacco           product     are
    measured in different units.                Volumes of cigarettes and cigars
    are     measured    in     sticks,    but    volumes            of       all     other       tobacco
    products are measured in pounds.                       See 7 U.S.C. § 518d(g)(3)
    (prescribing       units    of    measurement         to    be       used      in    calculating
    “volume    of     domestic       sales”);    
    26 U.S.C. § 5701
          (prescribing
    excise tax rates per stick for cigars and cigarettes, and per
    pound     for     the    other     classes       of     tobacco           product).            USDA
    determined      that,     in     arriving    at       the       initial        allocations          in
    § 518d(c)(1),       Congress      converted       these         volumes        into      a    common
    unit--dollars--by multiplying each class’s volume by the maximum
    excise    tax     rate   applicable     to       that      class.           To      arrive     at    a
    percentage for each class, the resulting dollar amount for each
    class was then divided by the sum of all dollar amounts across
    all six classes.           See Tobacco Transition Assessments, 
    70 Fed. Reg. 7007
    -01, 7007 (February 10, 2005) (codified at 7 C.F.R. pt.
    1463).     The statute itself, however, does not explain that this
    is how the initial allocations were determined or explicitly
    indicate that future allocations are to be arrived at in this
    way.
    importation of such articles into the United States.”                                  
    26 U.S.C. § 5702
    (j).
    6
    2.
    Step    two    of       the     FETRA    allocation               procedure      deals     with
    subdividing           the        step-one         inter-class                allocation           among
    manufacturers         of       tobacco       products       within         each    class.         As    a
    starting point, FETRA provides that the total assessment for
    each    class    of    tobacco          product       is    to       be    allocated       among    the
    manufacturers of that class “based on” each manufacturer’s share
    of     gross    domestic             volume.       7       U.S.C.         § 518d(e)(1).            More
    specifically, this allocation is to be calculated by multiplying
    each manufacturer’s market share within a class by that class’s
    total    allocation            from     step     one.            7    U.S.C.      § 518d(f).            A
    manufacturer’s market share, in turn, is to be its “share” of
    the “volume of domestic sales” for that class of product.                                               7
    U.S.C. § 518d(a)(3).
    Compared       to       its     skeletal        treatment           of     “gross    domestic
    volume,”       FETRA        provides         considerable             detail       about     how       to
    calculate       “volume          of     domestic       sales.”              FETRA       devotes    two
    subsections to the latter, one for “determining” it and another
    for     “measuring”            it.       7     U.S.C.       §§       518d(g),(h).           USDA       is
    instructed      to     calculate          volume       of    domestic           sales    based     upon
    gross domestic volume, forms relating to a manufacturer’s volume
    of     removals        and           taxes     paid,        and       “any        other     relevant
    information.”              7    U.S.C.       §§ 518d(g)(1),(g)(2),(h)(2).                         Thus,
    while     § 518(e)(1)            instructs        USDA       to       base       its     intra-class
    7
    allocations on gross domestic volume, § 518(g) indicates that
    other factors are to be considered as well.
    B.
    In     February       of      2005,    USDA         promulgated             a    final       rule
    implementing     the        FETRA    assessment           methodology             codified        at   7
    U.S.C. § 518d.             Tobacco Transition Assessments, 
    70 Fed. Reg. 7007
    -01    (February        10,     2005)    (codified          at     7    C.F.R      pt.       1463).
    That rule provided that USDA would determine each year’s inter-
    class allocation on the basis of “each class’s share of the
    excise taxes paid . . . . [b]ased upon the reports filed by
    domestic manufacturers and importers of tobacco products with
    the Department of the Treasury and the Department of Homeland
    Security.”     
    7 C.F.R. § 1463.5
    (a) (2005). 3
    With    this    interpretation          in        place,       Congress         incorporated
    the FETRA methodology into another statute, the Family Smoking
    Prevention and Tobacco Control Act (“FSPTCA”), Pub. L. 111-31,
    
    123 Stat. 1776
        (2009).         That           statute       relies    upon         the    FETRA
    methodology      to        determine        the        “user        fee”     to       be    paid       by
    manufacturers         of     tobacco        products           to     the     Food         and     Drug
    Administration        to     fund    the     exercise           of    its     newly        conferred
    3
    USDA reiterated this language--that it would use “excise
    taxes paid”--in its briefs in an unrelated case before the
    Eleventh Circuit. Swisher Int’l, Inc. v. Schafer, 
    550 F.3d 1046
    (11th Cir. 2008).
    8
    jurisdiction to regulate them.              
    Id.
     § 919(b)(2)(B)(ii) (codified
    at 21 U.S.C. § 387s(b)(2)(B)(ii)).
    Congress      also       passed     the     Children’s     Health     Insurance
    Program Reauthorization Act of 2009 (“CHIPRA”).                        Pub. L. No.
    111-3,    
    123 Stat. 8
    .      As    well     as   expanding    federal    health
    insurance programs for children, that bill also increased the
    excise taxes on every class of tobacco product.                       CHIPRA § 701.
    The cigar industry, through the Cigar Association of America,
    mounted a lobbying campaign to persuade Congress not to increase
    excise taxes on cigars on the grounds that the tax itself would
    be burdensome and that the change in rates would increase the
    cigar industry’s FETRA assessment burden.                  This campaign reached
    “a   great   many    congressional         members.”       J.A.    167.       But    the
    lobbying     effort,      it     would    seem,    did   not     succeed.      CHIPRA
    equalized    the    tax    rates    for    cigarettes 4    and     small    cigars    at
    $50.33 per thousand.            CHIPRA §§ 701(a)(1), (b)(1).
    Though the rates were equalized, the relative change in
    rates was much larger for cigars than cigarettes.                           While the
    4
    The Internal Revenue Code defines two categories of
    cigarette, large and small.      For the years at issue here,
    however, no large cigarettes were actually removed. See, e.g.,
    Alcohol and Tobacco Tax and Trade Bureau, Department of the
    Treasury, Statistical Report: Tobacco (Dec. 2005) (indicating
    that no large cigarettes were removed in 2004 or 2005). (Reports
    for other years also show that no large cigarettes were
    removed.)   We will therefore use “cigarette” to refer only to
    small cigarettes.
    9
    rate   for    cigarettes      was    increased        to   $50.33    from       $19.50   per
    thousand, 
    26 U.S.C. § 5701
    (b)(1) (2000); CHIPRA § 701(b)(1), the
    rate for small cigars increased to $50.33 from only $1.828 per
    thousand, 
    26 U.S.C. § 5701
    (a)(1) (2000); CHIPRA § 701(a)(1).
    The tax rate for large cigars was also greatly increased: the
    rate increased from $48.75 per thousand cigars to $402.60 per
    thousand     cigars. 5        
    26 U.S.C. § 5701
    (a)(2)        (2000);       CHIPRA   §
    701(a)(3).
    C.
    As    described      above,     the       FETRA      inter-class          allocation
    calculates each class’s share of the burden by multiplying the
    removed      volume    of     each    class      of    product       by     the    maximum
    applicable     excise    tax       rate.     USDA’s        regulations      at    the    time
    CHIPRA was enacted provided that inter-class allocations would
    be determined on the basis of “each class’s share of the excise
    taxes paid,” which implied that USDA would use current tax rates
    in   performing       these    calculations. 6             Therefore      the     tax    rate
    changes in CHIPRA would have substantially reduced the burden
    5
    The act expresses this rate as “40.26 cents per cigar.”
    CHIPRA § 701(a)(3).
    6
    Beyond this implication, however, USDA never explicitly
    took a position on how future changes in the excise tax rates
    would be reflected in the inter-class allocation process.  The
    tobacco excise tax rates had remained constant during the life
    of the FETRA program until the enactment of CHIPRA.
    10
    allocated    to   the    cigarette    industry   and   shifted   it   to
    manufacturers of other types of tobacco products.            The cigar
    industry in particular would have seen a marked increase in its
    liability.
    After the passage of CHIPRA, however, USDA promulgated a
    technical amendment to 
    7 C.F.R. § 1463.5
     to make clear that it
    would continue to use the 2003 tax rates--the rates applied by
    Congress in setting the fiscal year 2005 allocations.            Tobacco
    Transition Payment Program; Tobacco Transition Assessments, 
    75 Fed. Reg. 76921
    -01 (Dec. 10, 2010) (to be codified at 7 C.F.R
    pt. 1463).    This amendment altered the text of the regulation
    such that USDA would calculate each class’s share of the year’s
    assessment on the basis of “each class’s share of the excise
    taxes paid using for all years the tax rates that applied in
    fiscal year 2005.”      
    7 C.F.R. § 1463.5
    (a)(2010) (emphasis added).
    USDA published an extensive explanation of the amendment, 75
    Fed. Reg. at 76921-01, which it summarized as follows:
    [USDA] is modifying the regulations for the Tobacco
    Transition   Payment   Program  (TTPP)   to   clarify,
    consistent with current practice and as required by
    the Fair and Equitable Tobacco Reform Act of 2004
    (FETRA), that the allocation of tobacco manufacturer
    and importer assessments among the six classes of
    tobacco products will be determined using constant tax
    rates so as to assure that adjustments continue to be
    based solely on changes in the gross domestic volume
    of each class.   This means that [USDA] will continue
    to determine tobacco class allocations using the
    Federal excise tax rates that applied in fiscal year
    2005. These are the same tax rates used when TTPP was
    11
    implemented and must be used to ensure, consistent
    with FETRA, that changes in the relative class
    assessments are made only on the basis of changes in
    volume, not changes in tax rates.       This technical
    amendment does not change how the TTPP is implemented
    by [USDA], but rather clarifies the wording of the
    regulation to directly address this point.
    Id.
    D.
    The    technical         amendment      first       had    an    effect    in    USDA’s
    allocation of the fiscal year 2011 national assessment.                                 Philip
    Morris      contends      that,    because          USDA   used     the    pre-CHIPRA        tax
    rates, it calculated that the cigarette industry would pay 91.6%
    of the national assessment instead of 78.5%, the maximum that
    would have been allocable to it had the then-current rates been
    applied.      The cigar class was allocated 7.1% instead of 19.5%.
    In    the    first   quarterly          assessment         of    that   year,     therefore,
    manufacturers        of    cigarettes          paid    approximately           $219    million
    instead of $188 million.                Of this $219 million, $99 million was
    assessed to      Philip         Morris    by    virtue      of    its     cigarette     market
    share.       Had USDA allocated only $188 million to the cigarette
    class,      Philip   Morris’s       individual         assessment         would   have       been
    significantly lower.
    Philip    Morris     appealed        this      assessment,         as   well     as   the
    assessments      for      the    next    two    quarters,          to   the    Secretary      of
    Agriculture      under      7    U.S.C.     518d(i).             USDA   denied    all    three
    appeals on the basis that the appeal process could only be used
    12
    to assert mathematical or factual errors, not to challenge the
    assessment formula itself.
    Philip Morris also petitioned USDA for a rulemaking that
    would,       in     effect,          repeal     the      December       10,    2010    technical
    amendment         to    
    7 C.F.R. § 1463.5
    ,        
    75 Fed. Reg. 76921
    -01,          and
    require USDA to always use current tax rates.                                   USDA rejected
    that petition.               See 
    76 Fed. Reg. 71934
    -02 (Nov. 21, 2011).
    Finally, Philip Morris brought this lawsuit, arguing that
    USDA’s December 10, 2010 technical amendment was inconsistent
    with       FETRA.            It   sought      an    order      vacating       that    amendment,
    restraining USDA from collecting assessments in excess of what
    Philip       Morris          would     have     paid     had    current       tax     rates    been
    applied, and directing USDA to refund the excessive payments
    Philip Morris had already made.                          At summary judgment, however,
    the district court concluded that USDA’s methodology “faithfully
    adjust[s]         the    percentage        of      the    total   amount       required       to    be
    assessed against each class of tobacco product . . . as directed
    by     7     U.S.C.          § 518d(c)(2)”          and     “reasonably         reflects           the
    congressional intent underlying FETRA.”                           Philip Morris USA Inc.
    v.     Vilsack,         
    896 F. Supp. 2d 512
    ,     524    (E.D.       Va.   2012).
    Accordingly,            it    granted      USDA’s        motion   for     summary       judgment.
    This appeal followed.
    13
    II.
    In determining whether USDA’s decision to use only the tax
    rates applicable in 2005 is permissible, we conduct the two-step
    analysis      articulated             in       Chevron,       U.S.A.,       Inc.       v.    Natural
    Resources Defense Council, Inc., 
    467 U.S. 837
     (1984).                                       We first
    ask    whether       “Congress            has     directly         spoken    to       the    precise
    question at issue.”                 
    Id. at 842
    .              At step one, we employ “the
    traditional rules of statutory construction.”                                    Elm Grove Coal
    Co.    v.   Dir.,     O.W.C.P,           
    480 F.3d 278
    ,      293-94    (4th      Cir.     2007)
    (quoting      Brown & Williamson Tobacco Corp. v. FDA, 
    153 F.3d 155
    ,
    162 (4th Cir. 1998)).                     In so doing, we consider “the overall
    statutory scheme, legislative history, the history of evolving
    congressional regulation in the area, and . . . other relevant
    statutes.”         
    Id.
        At this stage, the court gives no weight to the
    agency’s interpretation.                   Mylan Pharm., Inc. v. FDA, 
    454 F.3d 270
    ,    274    (4th       Cir.        2006).        If       the    court     determines        that
    Congress’s intent is clear, then the inquiry ends and Congress’s
    intent is given effect.                  See Chevron, 
    467 U.S. at 843
    .
    If we conclude that Congress has not clearly answered the
    question      at     issue,         we     then     consider         whether       the      agency’s
    interpretation           of     the      statute        is    based    upon       a    permissible
    construction        of        the     governing         statute.           
    Id. at 843
    .      To
    elucidate the gaps and ambiguities in the programs created by
    Congress      is    one       of    the    core     functions         of    an    administrative
    14
    agency,    a    function      that   we    presume     Congress     intentionally
    invokes    in    drafting     such   a    statute.      
    Id. at 843-44
    .       We
    therefore will not usurp an agency’s interpretive authority by
    supplanting      its    construction      with   our   own,   so    long    as   the
    interpretation         is   not   “arbitrary,    capricious,       or    manifestly
    contrary to the statute.”             
    Id. at 844
    .        A construction meets
    this standard if it “represents a reasonable accommodation of
    conflicting policies that were committed to the agency’s care by
    the statute.”        Id. at 485 (quoting United States v. Shimer, 
    367 U.S. 374
    , 383 (1961)).
    When an agency’s decision constitutes a change in position,
    the court must be satisfied that such a change in course was
    made as a genuine exercise of the agency’s judgment.                        Such a
    change does not, however, require greater justification than the
    agency’s initial decision.           See FCC v. Fox Television Stations,
    Inc., 
    556 U.S. 502
    , 515 (2009).                We defer to the agency’s new
    position no less than the old, so long as we are satisfied that
    the agency’s change in position was intentional and considered.
    It is not the court’s role to evaluate whether the agency’s
    reasons for its new position are better than its reasons for the
    old one.       
    Id.
       We review the district court’s factual and legal
    conclusions on an administrative record de novo.                        Ohio Valley
    Envtl. Coal. v. Aracoma Coal Co., 
    556 F.3d 177
    , 189 (4th Cir.
    2009).
    15
    A.
    We begin our Chevron step one analysis with this most basic
    observation:      nowhere    does    FETRA       explicitly    say    that   USDA    is
    required to use any tax rate at all in computing an inter-class
    assessment allocation, much less that it must use the rates that
    were   applicable    in     any   particular       year.      The    statute’s    only
    overt references to taxes or tax rates can be found in 7 U.S.C.
    §§ 518d(a)(2)(B) & (h)(2)(B).                   Section 518d(a)(2)(B) requires
    that gross domestic volume only include tobacco product that is
    taxable    when    removed.         Section       518d(h)(2)(B)      requires     that
    manufacturers of tobacco products submit copies of forms related
    to their excise tax payments.               Significantly, neither of these
    provisions   deal    directly       with    the    computation       of   inter-class
    assessment allocations.
    Instead it was USDA that discovered, through mathematical
    reverse engineering, that Congress had used the excise tax rates
    applicable in 2003 to compute the initial assessment allocation
    in § 518d(c)(1).          USDA determined that it could reproduce the
    numbers in that paragraph by obtaining volume information from
    publically     available      statistical          reports    published      by     the
    Treasury Department 7 and multiplying those volumes by the maximum
    7
    See, e.g., Alcohol and Tobacco Tax and Trade Bureau,
    Department of the Treasury, Statistical Report: Tobacco (Dec.
    2005).
    16
    excise    tax   rate   applicable   to      each   class   of    product.     This
    process generated dollar amounts that, when taken as percentages
    of the total dollar amount across all six classes, corresponded
    with the percentages in § 518d(c)(1).
    But even at Chevron step one, we must not confine ourselves
    to a merely superficial reading of the statute.                       We must also
    make use of our traditional tools of statutory construction to
    determine whether Congress’s intent is revealed in more subtle--
    though still unambiguous--ways.                Elm Grove Coal, 
    480 F.3d at 293-94
    .
    Notwithstanding     the   lack     of     any   overt     reference    to   a
    current-tax-rate requirement, Philip Morris argues that such a
    requirement is implied from the overall structure of the statute
    and by subsequent congressional action.                It does so by cobbling
    together    various    provisions      relating       to   FETRA’s     intra-class
    allocation procedure and by speculating about the policy goals
    of   Congress’s    chosen   method       for    performing      the    inter-class
    allocation calculations.        Philip Morris’s reading of FETRA may
    be a plausible one, but its burden is far higher than showing
    plausibility.      To disturb USDA’s decision at Chevron step one,
    it must persuade us that USDA’s decision is contrary to the
    unambiguously expressed intent of Congress.                     This it has not
    done.
    17
    1.
    Philip    Morris    argues       that       “Congress     commanded       USDA    to
    adjust    the    class     shares      based    upon     changes      in   the   share    of
    currently taxable removals” in § 518d(a)(2)(B).                            Therefore, it
    argues, “it follows that Congress intended USDA to use current
    rates.”      Appellants’         Br.    at     27   (emphasis      omitted).        Philip
    Morris’s     premise       is    correct,       but      its    conclusion       does    not
    necessarily follow.             It might have made sense to use the same
    edition of the Internal Revenue Code to determine what products
    are to be included in gross domestic volume and to determine how
    volumes are to be translated into percentages.                             But there is
    nothing incoherent about taking a different approach.
    To conclude otherwise would invert the standard we apply
    under    Chevron    step        one:    we    vacate     an    agency’s     decision      if
    Congress clearly manifested a contrary intent, not when Congress
    could have but did not clearly manifest its approval.                             In this
    light, congressional silence might actually cut the other way.
    Section 518d(a)(2)(B) exemplifies language that Congress could
    have used in § 518d(c), but conspicuously did not, to make clear
    that    current    tax     rates       were    to   be   used    in    calculating       the
    assessment allocations.
    2.
    Philip Morris argues that Congress clearly indicated that
    it expected USDA to always use current rates in the inter-class
    18
    allocations     by   requiring   manufacturers   to   submit    forms   “that
    relate to . . . the payment of [tobacco product excise taxes].”
    But FETRA only instructs USDA to use these forms as a part of
    the intra-class allocation process.
    The   requirement    that    manufacturers      submit    these   forms
    appears in § 518d(h), which is entitled “Measurement of volume
    of   domestic   sales.”     Consistent    with   this    characterization,
    FETRA only requires that USDA actually use the forms in one
    place: § 518d(g)(1).        This paragraph directs USDA to compute
    volume of domestic sales, not gross domestic volume, “based on
    information provided by the manufacturers and importers . . . as
    well as any other relevant information. . . .”            Id.    And, as we
    have noted, FETRA only instructs USDA to use volume of domestic
    sales for one purpose: computation of a manufacturer’s market
    share to determine the intra-class allocations at step two of
    the FETRA assessment procedure.       §§ 518d(a)(3),(f). 8
    8
    Philip Morris also points out that “the forms relate to
    calculations concerning ‘all manufacturers and importers [within
    a class] as a group.’”    Appellants’ Brief at 35.   But this is
    quite a selective quotation of § 518d(g)(1).    What the statute
    actually says is that the forms are to be used in calculating
    “the volume of domestic sales of a class of tobacco product . .
    . by all manufacturers and importers as a group.”       Id.  The
    obvious purpose of this is to form the denominator of the
    fraction contemplated by § 518d(f)(2) in calculating market
    share.
    19
    Philip Morris argues that Congress cannot have intended to
    require       the    use     of      these       forms      only     for    the     intra-class
    allocation because information about taxes paid is unnecessary
    for those calculations.                This is so, it contends, because intra-
    class market share calculations will always be apples-to-apples
    (or cigar-to-cigar, etc.) comparisons.                              Therefore, unlike the
    inter-class         allocation         that      deals       with     differing         units      of
    measurement, there is no need to use the excise tax rates as a
    conversion factor for intra-class calculations.
    This    overlooks,            however,      the      possibility       that       Congress
    intended for USDA to use these forms for some purpose other than
    unit    conversion.             They       could    be      valuable,       for    example,        in
    determining the volume of taxable products actually removed by
    each manufacturer.              Indeed, the record indicates that USDA uses
    the forms in exactly this way.                           But even if Philip Morris’s
    assumption      were       correct,        the     forms’     irrelevance         would       be   an
    infirmity in FETRA, not in USDA’s interpretation of it.                                         That
    the    data    might       be    superfluous          in    the     calculation         for   which
    Congress      directed          it    be    used      does    not     amount       to    a    clear
    articulation        that     it      should      actually      be    used    for    some      other
    purpose.
    3.
    Philip Morris’s remaining step one arguments presuppose the
    existence      of    a     textual         basis      for    concluding       that       Congress
    20
    intended for USDA to always use current rates under 518d(c).
    But, for the reasons discussed above, we conclude otherwise.
    The only direct evidence of Congress’s intent in this regard is
    its actual use of the then-current 2003 rates, in establishing
    the initial allocation under § 518d(c)(1).                     But this provides no
    basis for determining whether Congress intended that USDA would
    always use current rates or that it would always use 2003 rates.
    The minimal textual evidence is equally consistent with both
    methodologies.
    This    conclusion       dooms    Philip    Morris’s      remaining     Chevron
    step one arguments.             Most basically, Philip Morris argues that
    USDA must follow the methodology Congress used in establishing
    its initial allocation, and that this methodology was to use the
    excise taxes that applied in the year the products were removed.
    But,   as     we   have   just    pointed       out,   there    is   no     independent
    textual support for this contention.
    Philip Morris also argues that, in adjusting for changes in
    each class’s share of gross domestic volume, Congress decided to
    use each class’s then-current excise tax burden as the factor
    with which to convert volumes to shares.                   But this argument begs
    the same question.
    Likewise, we are not persuaded by Philip Morris’s argument
    that Congress intended to further the policies underlying its
    choice   of    excise     tax    rates    by    building    them     into    the   FETRA
    21
    assessment allocation.             There is no evidence in the text of
    FETRA or elsewhere to indicate that Congress intended to use
    FETRA as a vehicle to further tax policy writ large.                             The record
    equally    supports      the   conclusion       that     Congress         used     the   2003
    excise tax rates only because they were a useful mathematical
    expedient.           Therefore,    having      found     no     clear       statement     of
    Congressional        intent,    we   turn      to    step      two    of     the    Chevron
    analysis.
    B.
    The Chevron step two analysis brings us closer to the heart
    of this dispute.           Here we examine whether USDA’s decision is
    based   upon     a    permissible     reading       of   FETRA,       a     reading      that
    reflects    a    reasonable       balancing    of    the      policy       considerations
    that Congress entrusted to USDA’s care.                        Chevron, 
    467 U.S. at 843-45
    .     We do not evaluate which interpretation of FETRA is
    best.     That is a responsibility delegated by Congress to USDA.
    Our task is simply to determine whether USDA’s interpretation is
    reasonable in light of all we know about Congress’s intent in
    passing it.
    Many       of   Philip    Morris’s     arguments         at     step    two    of   the
    Chevron    analysis      are   reiterations         of   its    step-one         arguments.
    They are equally unavailing in the context of Chevron step two.
    In particular, as it did under Chevron step one, Philip
    Morris contends that USDA was entrusted with all of the complex
    22
    and    important       policy    considerations      that   drive     tax     law
    generally.        USDA’s interpretation is unreasonable, it argues,
    because      it   disregards    the   considerations    reflected     in    other
    statutes involving tobacco excise taxes.               But as we concluded
    above, there is no evidence that Congress intended for FETRA to
    do anything more than provide a workable methodology for the
    allocation        of   assessments    across   manufacturers    of     tobacco
    product.
    Philip Morris does, however, present some independent step-
    two arguments.         It argues that USDA’s decision is based upon an
    interpretation of FETRA at odds with the text of the statute, 9
    that USDA’s decision is inconsistent with its previous position,
    and that Congress subsequently entrenched this prior position,
    rendering it immune to further modification by the USDA.                       We
    consider each of these arguments in turn, and conclude that, as
    at    step    one,     Philip   Morris    presents   nothing   more    than     a
    plausible alternative reading of FETRA.
    9
    We consider this under Chevron step two because Philip
    Morris’s argument targets not the consistency of USDA’s decision
    itself with the text of FETRA, but the permissibility of the
    statutory interpretation that underlies it.     See Chevron, 
    467 U.S. at 843
     (“[I]f the statute is silent or ambiguous with
    respect to the specific issue, the question for the court is
    whether   the  agency's   answer is   based  on    a permissible
    construction of the statute.”).
    23
    1.
    Philip Morris argues that USDA’s decision to continue using
    2003    rates     rests      on   an   impermissible    interpretation     of   the
    phrase “share of gross domestic volume” in § 518d(c)(2).                        USDA
    has interpreted that term to mean a given class’s “contribution
    to the total” such that the share changes only in response to
    changes in actual volume produced.                 Philip Morris presents two
    arguments.        First it argues that USDA’s interpretation defines
    “share of gross domestic volume” as a volume and, thus, makes it
    synonymous with a different statutory term, “volume of domestic
    sales.”      In the alternative, Philip Morris argues that USDA’s
    interpretation         has    defined      the   term   as   a   percentage     but
    impermissibly         uses   different     conversion   rates    for   calculating
    this percentage at the two steps of the assessment process--2003
    tax rates for the inter-class allocation, but current tax rates
    for the intra-class allocation. 10
    These arguments are, however, unavailing.                 A volume is an
    actual number of objects in an absolute sense.                   But a share, as
    USDA has interpreted it, is an abstract relationship between a
    volume      and   a    larger      total   volume.      USDA’s    interpretation
    10
    It also argues that USDA is obliged to use the same
    conversion factor as Congress did in arriving at the initial
    class allocations in § 518d(c)(1). This argument fails for the
    reasons explained in part II.A.3 supra.
    24
    therefore defines “share of gross domestic volume” differently
    from “volume of domestic sales.”
    “Share of gross domestic volume,” as USDA has interpreted
    the term, also need not be a percentage.                           A percentage is a
    numerical        representation       of    a     share,    not    the     share    itself.
    Therefore        “share     of   gross       domestic        volume”       as    USDA    has
    interpreted it, need not incorporate any conversion factor at
    all.    Philip Morris argues that USDA does, in fact, use taxes
    actually     paid    (and    thus     current       tax     rates)    as    a    conversion
    factor in the intra-class allocation procedure.                            But USDA uses
    taxes paid as a proxy for the volume of product removed, not as
    a   conversion        factor     to        relate        volumes     to    one     another.
    Therefore, although USDA’s interpretation may not be the most
    natural reading of the statute, it is a reasonable one, and that
    is all that Chevron requires.
    2.
    As   we    noted   earlier,     prior        to    USDA’s     December      10,   2010
    technical amendment, many members of Congress were informed that
    under USDA’s        regulations       at    the     time,    changes       in   excise    tax
    rates would affect the FETRA assessment calculations.                                Philip
    Morris argues that Congress, in effect, legislated that view,
    rendering it impervious to modification by USDA, when it did two
    things.      First, Congress passed CHIPRA, with its dramatic tax
    increase on cigar manufacturers, over the protestations of the
    25
    cigar industry that this change would increase its assessment
    burden under FETRA.             Second, Congress passed FSPTCA, which gave
    the   Food      and    Drug    Administration            the     authority       to     regulate
    tobacco and, to fund these new duties, imposed user fees on
    manufacturers of tobacco products.                         In allocating these fees
    across “users,” it provides that “[t]he applicable percentage of
    each class of tobacco product . . . for a fiscal year shall be
    the percentage determined under [FETRA] for each such class of
    product for such fiscal year.”                 21 U.S.C. § 387s(b)(2)(B)(ii).
    Therefore, Philip Morris argues, because Congress was aware
    of    USDA’s     original       interpretation,            and     took       action       without
    disturbing      that     interpretation,            it    sub    silentio        ratified       and
    entrenched       it.         Thus,   Philip     Morris          contends,       USDA’s        prior
    interpretation now has, in effect, the force of a statute and
    USDA cannot deviate from it without congressional action.
    But    we     have     never      articulated           such      a     standard        for
    entrenchment, and for good reason: it is far too low.                                  If Philip
    Morris’s        formulation          were      the       standard,        Congress            would
    inadvertently           entrench        agency           interpretations              much      too
    frequently,           resulting      in     extensive            ossification           of     our
    regulatory          system--the        signal        virtue        of         which     is     its
    flexibility.           Such a standard would therefore contravene the
    axiom    that    agencies       “must     be   given       ample    latitude          to     ‘adapt
    their     rules        and     policies        to        the     demands        of      changing
    26
    circumstances.’”      FDA v. Brown & Williamson Tobacco Corp., 
    529 U.S. 120
    , 156-57 (2000) (quoting              Motor Vehicle Mfrs. Assn. v.
    State Farm Mut. Auto. Ins. Co., 
    463 U.S. 29
    , 42 (1983)).
    Brown & Williamson provides a useful model of what sort of
    congressional action would be required to entrench an agency’s
    interpretation.      In Brown & Williamson the question was whether
    congressional    action    had     ratified    the   FDA’s    prior    conclusion
    that it lacked jurisdiction to regulate tobacco products.                        In
    concluding that it had, the Court devoted thirteen pages in the
    U.S. Reports to narrating the 35-year pattern of congressional
    action on the issue, 
    id. at 143-156
    , of which the following is
    merely a summary:
    Congress has enacted several statutes addressing the
    particular subject of tobacco and health, creating a
    distinct    regulatory    scheme   for    cigarettes  and
    smokeless tobacco.     In doing so, Congress has been
    aware    of    tobacco’s    health   hazards     and  its
    pharmacological effects.      It has also enacted this
    legislation    against   the   background    of   the FDA
    repeatedly and consistently asserting that it lacks
    jurisdiction under the [Food, Drug, and Cosmetic Act]
    to regulate tobacco products as customarily marketed.
    Further, Congress has persistently acted to preclude a
    meaningful role for any administrative agency in
    making policy on the subject of tobacco and health.
    Moreover, the substance of Congress’ regulatory scheme
    is, in an important respect, incompatible with FDA
    jurisdiction.
    
    Id. at 155-56
    .       We are not aware of, and Philip Morris has not
    directed us to, any case where a court has found congressional
    entrenchment    of   an   agency    decision    on   the     basis    of   anything
    27
    less.     The   circumstances     surrounding      Congress’s    enactment     of
    CHIPRA and FSPTCA fall far short of this standard.
    3.
    Finally, Philip Morris argues that USDA’s current position-
    -that it will continue to use 2003 rates in the inter-class
    allocation--is unreasonable because it is inconsistent with its
    prior    position.       Before    the    December     10,   2010     technical
    amendment, USDA’s regulations indicated that it would use taxes
    paid under current rates.
    A mere change in position, however, would not in itself
    render   USDA’s      current   position    unreasonable.         It   is     well
    established     that   “[a]n   initial    agency     interpretation     is   not
    instantly carved in stone.”         Chevron, 
    467 U.S. at 863
    .           Indeed,
    a change in an agency’s position in itself is not even subject
    to a heightened level of scrutiny.               Fox Television Stations,
    Inc., 
    556 U.S. at 514
     (2009); E.E.O.C. v. Seafarers Int'l Union,
    
    394 F.3d 197
    , 201 (4th Cir. 2005).          Thus, without more, it is of
    little significance whether USDA’s current position is the same
    as its original one.
    Philip     Morris   argues   that    USDA   has   denied    changing    its
    position, but it misconstrues USDA’s argument.                  USDA has only
    argued that, prior to the December 10, 2010 technical amendment,
    it had never taken a position on whether future changes in tax
    rates would affect the FETRA assessment calculations.                 There was
    28
    no need to have done so because, before that point, the excise
    tax rates had not changed during the life of the FETRA program.
    This    is    a   plausible        interpretation,          and    because      it    is    an
    agency’s interpretation of its own regulation, we defer to it.
    See Auer v. Robbins, 
    519 U.S. 452
    , 461 (1997).
    USDA has not argued that the decision at issue in this
    case, the technical amendment’s insertion of the words “using
    for all years the tax rates that applied in fiscal year 2005,” 
    7 C.F.R. § 1463.5
    (a)(2010),           made     no   difference        in    the     FETRA
    calculations.         Quite the opposite: USDA’s recognition of the
    difference between the original regulation and the amended one
    is precisely why it issued the technical amendment.                              Moreover,
    in response to Philip Morris’s rulemaking petition, USDA issued
    a detailed determination explaining why it would continue to use
    2003   rates      instead     of    current        rates,    as    Philip       Morris     had
    proposed--an       act    quite     inconsistent        with      the    view    that      USDA
    regarded the two approaches as equivalent.
    We     defer      to   an        agency’s    interpretation--even              if     it
    constitutes       a   change       of    position--so       long    as    that    decision
    resulted from a deliberate exercise of the agency’s judgment and
    expertise.        Fox Television Stations, Inc., 
    556 U.S. at
    514–15.
    There can be no dispute on this record that the decision under
    review is a product of just that process.
    29
    III.
    We therefore conclude that USDA’s decision to make use of
    only   2003    tax    rates      in    computing            the   inter-class          assessment
    allocation         under     7    U.S.C.          518d(c)(2)          is     a     permissible
    interpretation of FETRA.                   There is no clear indication in the
    text   of     the    statute,     or       in    Congress’s          prior    or       subsequent
    action,     that    Congress      intended            for   USDA     to    take    a    different
    course.       There is similarly no basis for concluding that USDA
    filled      that    gap    with       an    unreasonable           interpretation.            The
    district     court’s       decision        granting         USDA’s    motion       for    summary
    judgment is
    AFFIRMED.
    30