City of Great Falls v. Young by Con ( 1984 )


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  •                               No. 84-38
    IN THE SUPREME COURT OF THE STATE OF MONTANA
    IN THE MATTER OF UNFAIR LABOR
    PRACTICE :
    CITY OF GREAT FALLS, MONTANA,
    Defendant/Petitioner and Appellant,
    -vs-
    BRUCE YOUNG BY CONSTRUCTIOlJ AND
    GENERAL LABORERS' LOCAL NO. 1334
    AFL-CIO,
    Complainant and Respondent,
    and
    MONTAXA BOARD OF PERSONNEL APPEALS,
    Intervenor.
    APPEAL FROM:    District Court of the Eighth Judicial District,
    In and for the County of Cascade,
    The Honorable H. William Coder, Judge presiding.
    COUNSEL OF RECORD:
    For Appellant:
    David V. Gliko, City Attorney, Great Falls, Flontana
    For Respondent :
    D. Patrick McKittrick, Great Falls, Montana
    For Intervenor:
    James E. Gardner, Board of Personnel Appeals, Helena,
    Montana
    --                      ---.
    -.--     -
    Submitted on Briefs:   March 30, 1984
    Decided:   June 19, 1984
    -                        --
    Clerk
    Mr. Justice L.C.        Gulbrandson delivered the Opinion of the
    Court.
    The City of Great Falls (City) appeals from an order
    of   the District           Court    of    the Eighth Judicial District,
    Cascade County, affirming an order of the Board of Personnel
    Appeals        (Board) awarding backpay and restoring certain
    contractual benefits to complainant Bruce Young on account
    of an unfair labor practice committed against Young by the
    City.     We affirm.
    This is the third instance in which this Court has
    been petitioned to resolve matters arising out of a labor
    dispute between the City and Young and his union.                     In Young
    v.   City      of   Great    Falls    (Mont. 1981), 632 P.2d /Ill, 38
    *
    St.Rep. 1317 (Young I), this Court addressed the propriety
    of joining the Board as a necessary party to any judicial
    review in District Court of a Board order.                   A year later, in
    Young v. City of Great Falls (Mont. 1982), 
    646 P.2d 512
    , 39
    St.Rep.     1047 (Young 11), this Court affirmed a judgment by
    the District Court affirming a Board decision that the City
    had committed an unfair labor practice in its dealings with
    Young.      Subsequent to that appeal, on September 30, 1982, a
    bearings examiner for the Board conducted a hearing for the
    purpose of designing an appropriate remedial order.                          The
    examiner's recommended order, dated January 7, 1983, was
    appealed by the City to the Board.                     The Board adopted the
    order     without     alteration          on   March   9,   1983.     The    City
    appealed this decision to the District Court, but the court
    affirmed.       The City's challenge to the remedial order is now
    before this Court.
    The    remedial. order           fashioned    by   the   examiner   and
    affirmed        by    the     Board      and      the    District          Court        has        three
    essential         components:            (1) t h a t      the City tender                t o Young
    back p a y i n t h e amount o f              $9,633.66           ( l e s s amounts d e d u c t e d
    by    s t a t e and     federal       agencies          for     contribution            to     Social
    Security,         Public      Employees'          Retirement,           and    other         similar
    o b l i g a t i o n s ) p l u s i n t e r e s t of $4,628.09,         f o r t h e time p e r i o d
    O c t o b e r 3 1 , 1978 t o J u l y 20, 1 9 7 9 ; ( 2 ) t h a t t h e C i t y r e s t o r e
    t o Young       a l l s e n i o r i t y and l o n g e v i t y       r i g h t s d u e him u n d e r
    the    collective          bargaining          agreement          between      the       City        and
    Young's       union;        (3) that       the City           c r e d i t Young w i t h            other
    b e n e f i t s d u e him u n d e r t h e a g r e e m e n t .
    The       City     contests        the     findings          in    support           of     the
    hack p a y component and t h e s p e c i f i c t e r m s o f                  t h e component.
    D u r i n g and s i n c e t h e S e p t e m b e r 3 0 ,         1982, h e a r i n g ,    the City
    h a s r e s i s t e d a n y award o f back p a y o n t h e g r o u n d t h a t Young
    failed       to      mitigate       his     financial            losses       by   exercising
    r e a s o n a b l e d i l i g e n c e t o o b t a i n i n t e r i m employment.          Assuming
    t h a t Young is e n t i t l e d t o back p a y , t h e C i t y h a s c h a l l e n g e d
    t h e t i m e p e r i o d f o r which t h e award i s t o b e c a l c u l a t e d and
    t h e method used by t h e Board t o c a l c u l a t e b o t h t h e amount o f
    back p a y and i n t e r e s t d u e on t h a t amount.
    On a p p e a l , t h e C i t y r a i s e s t h e f o l l o w i n g i s s u e s :
    ( 1 ) Whether        t h e r e is s u b s t a n t i a l    evidence        t o support
    the     Board         finding        that       Young         exercised            "reasonable
    d i l i g e n c e " i n o b t a i n i n g i n t e r i m employment d u r i n g t h e p e r i o d
    i n which         h e was l a i d o f f by t h e C i t y ?
    ( 2 ) Whether t h e r e m e d i a l p e r i o d a d o p t e d by t h e h e a r i n g
    e x a m i n e r and a f f i r m e d by t h e Board i s p r o p e r ?
    ( 3 ) Whether        t h e Woolworth           formula used           to      calculate
    t h e amount o f          b a c k p a y owed Young i s a p p r o p r i a t e f o r t h i s
    case?
    (3) Whether   the    Florida Steel    formula       used   to
    calculate the amount of       interest awarded on back pay         is
    appropriate in light of Montana law respecting interest on
    judgments?
    Our analysis of these issues is guided by reference to
    National Labor Relations Board (NLRB) decisions and federal
    judicial interpretation of the National Labor Relations Act
    (NLRA).    Because of the similarity between the NLRA and the
    Montana Public Employees' Collective Bargaining Act, (PECBA)
    Sections 39-31-101 to       -409, MCA, we    have   found    federal
    administrative and     judicial construction        of   the   NLRA
    instructive and often persuasive regarding the meaning of
    our own labor relations law.     See, e.g., Teamsters Local #45
    v. State ex rel. Bd. of Personnel Appeals (Mont. 1981), 
    635 P.2d 1310
    , 1312, 38 St.Rep. 1841, 1844; State ex rel. Bd. of
    Personnel Appeals v. District Court (1979), 
    183 Mont. 223
    ,
    THE ISSUE OF "REASONABLE DILIGENCE"
    Following federal precedent, all of the parties agree
    that back pay is not always an appropriate remedy for an
    aggrieved employee:
    "A worker who has been the victim of an
    unfair labor practice is not entitled to
    simply await reimbursement from his or
    her employer for wages lost, for 'the
    [law] was not intended to encourage
    idleness. ' [citations omitted]  .
    " 'Mitigation [of an employer Is liability
    for backpay] will result not only where
    the worker has taken in earnings from
    another source after discharge, but also
    for 'losses willfully incurred1-- such as
    when the discriminatee fails to secure
    comparable employment without excuse.
    [citations omitted] A discharged worker
    is not held to the highest standard of
    diligence in his or her efforts to secure
    comparable    employment;   I reasonable'
    exertions are sufficient. [citations
    omitted]."   N.L.R.B. v. Mercy Peninsula
    Ambulance Serv. (9th Cir. 1979), 
    589 F.2d 1014
    , 1017-18.
    See also McCann Steel Co. v. N.L.R.B.                     (6th Cir. 1978), 
    570 F.2d 652
    , 656; N.L.R.B.              v.    Arduini Mfg.     Corp.    (1st Cir.
    1968), 
    394 F.2d 420
    , 423; N.L.R.B.          v.    Armstrong Tire and
    Rubber    Co.       (5th Cir.     1959), 
    263 F.2d 680
    , 683; Airport
    Service Lines (1977), 
    231 N.L.R.B. 137
    , 96 L.R.R.M.         (BNA)
    The    City maintains              that Young     did   not    exercise
    "reasonable diligence"                 in seeking       interim employment.
    According to the City, the record demonstrates that Young
    made minimal         efforts      to   secure other        employment between
    October 31, 1978, the day he was laid off, and July 20,
    1979, the day he was reinstated.                   The City likens Young's
    efforts        to   those    of   the       aggrieved     employee     in lllercy
    Penninsula, supra.           In that case, back pay was denied to the
    victim of an unfair labor practice upon a finding that he
    made but a few, insincere attempts during his nine months of
    unemployment to seek other work.                   589 F.2d      at 1018.      See
    also Alfred M. Lewis, Inc. v. N.L.R.B.                    (9th Cir. 1982), 
    681 F.2d 1154
    , 1156 (explaining facts of Mercy Peninsula);
    Arduini, supra         ( court    found lack of reasonable diligence
    where discriminatee did not apply for job with company he
    knew   was      hiring      and   where      he   visited    only     four   other
    companies and registered with employment office).
    Our    review is confined to the question of whether
    there is substantial evidence to support the finding of the
    Board that Young had exercised reasonable diligence.                        See
    section 2-4-704(2)(e), MCA; Slater v. Emp. Sec. Div. (Mont.
    1984), 
    676 P.2d 220
    , 222, 41 St.Rep. 247, 249-50.
    The record indicates that, following his termination,
    Young made weekly contacts with the union hall and with the
    local Job Service regarding prospective employment.                   Through
    the union, Young obtained a job of one-week's duration with
    a    local construction company.          Upon obtaining this job,
    Young's name was placed at the bottom of the union hall's
    hiring    list, and, consequently, was                unable       to obtain
    additional work through the union              in part because of his
    low position on the list.         However, he was able to secure,
    through his own initiative, another week's worth of work
    with a construction firm in Shelby, Montana, approximately
    eighty miles from Great Falls.         Young also contacted several
    other    individuals and      companies about job prospects, but
    could not remember all of their names or the specific number
    of individuals and companies approached.              There was evidence
    that    job   opportunities    were   hampered       by     winter    weather
    conditions and a slow economy.
    The hearing    examiner       found    that Young's           efforts
    amounted      to reasonable diligence, considering                   all the
    attendant circumstances.        The Board concurred, and we find
    no   reason to disturb this finding.                Once the Board has
    established     the amount of back            pay    owed    an otherwise
    wrongfully     discharged     employee,   the       burden    is     upon   the
    employer to produce evidence           to mitigate          its liability.
    Mercy Peninsula, supra, at 1017 (citing cases).                    Here, the
    evidence of Young's job-hunting efforts and the detrimental
    effect of weather and economic conditions on the job market
    were uncontraverted.             Furthermore, the facts of this case
    are clearly distinguishable from those in Mercy Peninsula
    and -  -
    Arduini.             The City has        not   demonstrated     how   the
    available         evidence      can     reasonably    be   interpreted     as
    indicative of indifference, insincerity or slothfulness on
    Young's part in his search for employment.
    THE ISSUE OF THE REMEDIAL PERIOD
    The period for calculating back pay typically begins
    to run at the time of the illegal discharge and ends when
    the aggrieved employee's reinstatement becomes effective.
    Bob Maddox Plymouth,             Inc.    (1981), 
    256 N.L.R.B. 813
    , 107
    L.R.R.M.     (BNA) 1325.        However, this remedial period can be
    reduced if there is proof of mitigating circumstances.                    The
    burden of proof          is on the employer to establish that it
    would      not    have    had    work     available    for   an   illegally
    discharged employee due to economic or other                        factors.
    N.L.R.B.     v.    Midwest Hanger Co.         (8th Cir. 1977), 
    550 F.2d 1101
    , 1104-1105, cert. den. 
    434 U.S. 830
    , 
    98 S. Ct. 112
    , 
    54 L. Ed. 2d 90
    ; N.L.R.B.         v.   Maestro Plastics Corp.        (2d Cir.
    1965), 
    354 F.2d 170
    , 176, cert. den. (1966), 
    384 U.S. 972
    ,
    
    86 S. Ct. 1862
    , 
    16 L. Ed. 2d 682
    .
    The hearing examiner found, and the Board concurred,
    that the appropriate remedial period for Young extended from
    October 31, 1978, the day of his termination, to July 20,
    1979, the day of his reinstatement.                The City maintains that
    the relevant period             should end    January 5, 1979, because
    Harold Spilde, the employee who had been wrongfully retained
    after October 31, had been laid off on January 5, with no
    hiring     taking place         until Young was reinstated July 20.
    Because      of        "budget constraints"        in   effect    at    the    time
    immediately following Spilde's termination, the City reasons
    that there would have been no work for Young to perform.
    The essence of the City's argument was presented to
    this Court             in Young I1 and     rejected as contrary           to    the
    available evidence:
    In
    I'     addition     to    Spilde,    CETA
    [Comprehensive Employment and Training
    Act] employees with less seniority than
    Young continued to do laborer's work
    after Young's discharge [on October 31,
    19781. Furthermore, 7 or 8 new employees
    were   hired   by   the   [City] Street
    Department in April 1979, but not Young.
    It was in this period that [Bob] Duty,
    [Superintendent of the Department ,] said
    in effect, 'I don't care what happens. I
    won't hire Bruce Young back in the Street
    Department.'"     646 P.2d at 514, 39
    St.Rep. at 1049.
    We find no evidence to dispute our original finding.
    Indeed, as the hearing examiner noted                    in his recommended
    remedial      order,        there   is     evidence     that     the   City    had
    laborer's work available after January 5, 1979.                        Moreover,
    it appears that the CETA employees used to perform this work
    may have been used              illegally, because CETA jobs may not
    result in displacement of regular employees and may                            not
    impair existing labor contracts.                 41 Fed.Reg. No. 124 (1981)
    (since repealed).           Had Young not been wrongfully discharged,
    he   would    have        had   standing    to   challenge     any     subsequent
    substitution of CETA workers                 for    regular    union    contract
    employees after January 5, 1979.                 Finally, we note that the
    City did not offer evidence at the hearing about any budget
    constraints.             In short, we      find no      reason to alter        the
    prescribed remedial period.
    THE APPROPRIATENESS OF THE WOOLWORTH FORMULA
    In calculating the amount of back pay due an illegally
    discharged      employee,     the    Board    utilizes     a   method     first
    developed and used by the N.L.R.B.                  in F.W.    Woolworth Co.
    (1950), 
    90 N.L.R.B. 289
    , 26 L.R.R.M.            (BNA) 1185.       This
    method, commonly referred to as the "Woolworth" formula, has
    been approved by the United States Supreme Court. N.L.R.B.
    v. Seven-Up Bottling Co. (1953), 
    344 U.S. 344
    , 
    73 S. Ct. 287
    ,
    Under this formula, the N.L.R.B.            and the Board compute
    back pay "on the basis of each separate calendar quarter or
    portion thereof" from the time of the illegal discharge to
    the time of a proper offer of reinstatement.                    The quarters
    begin    with   the   first    day    of     January,    April,    July    and
    October.     See Woolworth, 90 N.L.R.B.             at 293, 26 L.R.R.M.     at
    1185-86.     See also 8 F.R.E.S.       Section 63:74 (1978).            In the
    instant    case, Young's       back    pay    was    calculated    for    four
    quarters or portions thereof as follows:
    QTR.            COMPENSABLE                 RATE PER                    GROSS
    ENDING              HOURS                      HOUR                       PAY
    Gross pay for the first two quarters listed above was then
    reduced by $194.70          and     $200, respectively, to reflect
    Young's earnings from the two brief jobs with construction
    firms.     Thus, his total back pay is $9,633.66 for the four
    quarters, subject to further reductions for contributions to
    Social Security, PERS, and other obligations.
    Gi
    wcoC1~~'0.17.t
    Prior to using the P e A & formula, the N.L.R.B.
    ?c w A
    typically computed back pay by subtracting the total amount
    earned in other employment from the earnings the employee
    would have made had he or she not been terminated.                       This
    straight subtraction method was ultimately rejected because
    many employees could conceivably find work that paid more
    during the duration of their absence from the first job than
    what they would have earned had they still been employed in
    that position.         "This," according to the N.L.R.B.,            "resulted
    in     the    progressive   reduction or      complete   liquidation of
    backpay due."          90 N.L.R.B.    at 292, 26 L.R.R.M.            at 1185.
    Consequently, the N.L.R.B.            concluded that some employers
    might knowingly delay offers of reinstatement in order to
    reduce their hack pay liability.            Aggrieved employees would
    counter by waiving the right to reinstatement and thus toll
    the running of back pay to preserve any amounts then owing.
    90 N.L.R.B      at 292, 26 L.R.R.M.    at 1185.
    To    maintain     the   effectiveness     of     reinstatement
    policies and restore industrial peace, the quarterly method
    of computation or "Woolworth formula" was adopted.                      Under
    this approach:
    "[tlhe liability for each quarter may be
    determined by reference to factors then
    current, and not subject to subsequent
    fluctuation.    Thus, both employee and
    employer will be in a position to know
    with some precision the amount that will
    be due at the end of each 3-month period,
    if discrimination should ultimately be
    found." 90 N.L.R.B.   at 293, 26 L.R.R.M.
    at 1186.
    This formula also protects an employee's right to Social
    Security       benefits, which        are   based   on   the    number     of
    quarterly       contributions     from wages.       Thus,      the    formula
    serves the remedial purposes of labor law and retirement
    law.     90 N.L.R.B.    at 293, 26 L.R.R.M.     at 1186.
    We emphasize that this method has been approved by the
    United States Supreme Court as a proper exercise of informed
    discretion.        Seven-up Bottling, supra, 344 U.S.               at 346-48,
    73 S.Ct.    at 288-89, 97 L.Ed.          at 381-83.       The only caveat
    expressed    by    the Court was         that the N.L.R.B.          could      not
    "apply a remedy it has worked               out on       the basis of          its
    experience, without regard to circumstances which may make
    its application to a particular situation oppressive and
    therefore not       calculated      to   effectuate      a policy        of    the
    [National Labor Relations] Act."             344 U.S.     at 349, 73 S.Ct.
    at 290, 97 L.Ed. at 383.
    The City objects to the use of the Woolworth formula
    in the immediate case, primarily because Young allegedly did
    not exercise reasonable diligence in obtaining                           interim
    employment during the quarterly periods that he would have
    been working for the City.           This is not so much a criticism
    of    the   formula      for   calculating       back    pay   as    it       is    a
    reiteration of the already rejected argument that Young did
    not     exercise    reasonable      diligence       in    seeking        interim
    employment.
    Nevertheless, the City makes an additional argument,
    i.e.,    that     Woolworth    is   somehow      inapplicable       to    public
    sector employment.        We disagree.       The City's arguments here
    are presented       in   the   form of     conclusions as opposed                  to
    reasoned arguments.        The Woolworth formula has been applied
    in other states to public sector unfair labor practices.
    See e.g.,    Golden Cab. Co., 1 Nat'l             Pub. Empl. Rep.             (Lab.
    Rel. Press) 438 (Pa.Lab. Rel. Bd. Nov. 1, 1979).                     The City
    has     offered    no    reasons why       the    formula works           in       an
    "oppresive" manner         contrary to the goals of the Montana
    Public Employees' Collective Bargaining Act.                   See Seven-Up
    Bottling,       supra,         3 4 4 U.S.     a t 349, 73 S.Ct.              a t 290,      97 L.Ed
    a t    383.      Moreover,            we     note    that     the       alternative        formula
    p r o p o s e d by t h e C i t y ,      which i s b a s e d on a method used i n a
    sex     discrimination            case,       E.E.O.C.        v.     Ford     Motor       Co.    (4th
    Cir.    1 9 8 1 ) , 
    645 F.2d 183
    , r e v ' d on o t h e r g r o u n d s ( 1 9 8 2 ) , 
    458 U.S. 219
    ,     
    102 S. Ct. 3
     0 5 7 , 7 
    3 L. Ed. 2d 721
    , would,        i f applied
    to     this    case,      result        in    the    same a m o u n t o f        back      pay    due
    Young.          The      Board        did     not    act     erroneously            by    applying
    Woolworth t o t h i s case.
    ...............................................E L
    THE A P P R O P R I A T E N E S S OF THE F L O R I D A S T E                      FORMULA FOR
    CALCULATING INTEREST O BACKPAY
    N
    In     addition         to     awarding          Young     back     pay,        the    Board
    granted       i n t e r e s t on t h a t award,            using a formula f i r s t used
    b y t h e N.L.R.B.         i n F l o r i d a S t e e l Corp.         ( 1 9 7 7 ) , 2 3 
    1 N.L.R.B. 651
    ,     96    L.R.R.M.         (BNA)        1070.        This     formula e s t a b l i s h e s    a
    variable        rate      of     interest,           taken        from     Internal        Revenue
    S e r v i c e methods o f        interest calculation.                     The F l o r i d a S t e e l
    formula replaces a f i x e d s i x percent i n t e r e s t standard f i r s t
    applied        in     Isis      Plumbing            and    Heating         Co.     (1962),       
    138 N.L.R.B. 716
    ,       51     L.R.R.M.           (BNA)         112   and      accepted         as
    reasonable          by   the     federal courts.                 See,    e.g.,      N.L.R.B.       v.
    I n t ' l Union o f O p e r a t i n g E n g i n e e r s ( 6 t h C i r .       1 9 6 7 ) , 
    380 F.2d 244
    .      The       reasons       for       rejecting       a fixed         interest       rate i n
    favor of       a v a r i a b l e rate are c l e a r l y set f o r t h i n F l o r i d a
    Steel:
    "Taking i n t o c o n s i d e r a t i o n [ i n f l a t i o n a r y
    t r e n d s a n d t h e r e m e d i a l p u r p o s e s of t h e
    NLRA,]         . . .  t h e f l a t 6-percent i n t e r e s t
    r a t e no l o n g e r e f f e c t u a t e s t h e p o l i c i e s
    o f t h e [NLRA].          A r a t e o f i n t e r e s t more
    a c c u r a t e l y keyed t o t h e p r i v a t e s e c t o r
    money m a r k e t w o u l d h a v e t h e e f f e c t o f
    encouraging             timely        compliance           with
    [N.L.R.B.]         orders,        discouraging              the
    commission of u n f a i r l a b o r p r a c t i c e s , and
    more f u l l y c o m p e n s a t i n g d i s c r i m i n a t e e s
    f o r t h e i r economic l o s s e s . "   2 3 1 N.L.R.B.
    a t 6 5 1 , 9 6 L.R.R.M.    a t 1072.
    These      views      were     recently        reaffirmed          in    Olympic       Medical
    Corp.     (1980),       250    M.L.R.B.        146,        1 0 4 L.R.R.M.         (BNA)   1325.
    The     Montana       Board     of     Personnel        Appeals         finds     these    same
    c o n s i d e r a t i o n s r e l e v a n t t o remedying u n f a i r l a b o r p r a c t i c e s
    i n Montana.
    The C i t y o b j e c t s t o t h e i n t e r e s t award o f $4,628.09              on
    grounds t h a t t h e v a r i a b l e rates used by t h e h e a r i n g examiner
    and t h e Board exceed t h e s t a t u t o r y l i m i t a t i o n on i n t e r e s t o n
    judgments,       a n d b e c a u s e t h e i n t e r e s t was c o m p o u n d e d .   Section
    29-9-205(1),          MCA,    provides that,            e x c e p t i n cases w h e r e t h e
    interest       t o be     recovered          on a     judgment       is s p e c i f i e d i n a
    contract,       i n t e r e s t is payable "at a rate of                     10% p e r    annum
    and no g r e a t e r r a t e        [,and]    . . . must         n o t be c o m p o u n d e d i n
    any nanner o r form."                 Furthermore,           the City maintains t h a t
    t h e r a t e on judgments s h o u l d be t h e s i x p e r c e n t r a t e used i n
    I n t ' l Union of O p e r a t i n g E n g i n e e r s ,    supra.
    There       is n o q u e s t i o n    that     t h e v a r i a b l e rate formula
    used     by    the     hearing       examiner        and      approved       by    the    Board
    r e s u l t s i n an e f f e c t i v e i n t e r e s t rate exceeding t e n p e r c e n t .
    The     following        c a l c u l a t i o n s are       taken     from       the    hearing
    e x a m i n e r ' s recommended o r d e r a s a f f i r m e d b y t h e B o a r d :
    QUARTER                   NET BACK                      INTEREST                     INTEREST
    ENDING                       PAY                         RATE                     DUE 1-1-83
    The c h o i c e of      i n t e r e s t r a t e s and method o f c a l c u l a . t i o n was
    e x p l a i n e d b y t h e h e a r i n g e x a m i n e r i n h i s recommeded o r d e r :
    " T h e NLRB R e g i o n a l O f f i c e i n S e a t t l e
    reported t h e following adjusted prime
    interest             rates     which      it       used     in
    c a l c u l a t i n g back pay award i n t e r e s t i n
    t h e p r i v a t e s e c t o r : 1979-6%; 1980-12%;
    1981-12%; 1982-20%.               To d e t e r m i n e simple
    i n t e r e s t d u e , t h e NLRB t o t a l s t h e r a t e s
    f o r t h e y e a r s i n which t h e i n t e r e s t was
    due and owing t h e n a p p l i e s t h a t r a t e ( 6 %
    + 1 2 % + 1 2 % + 20% i n t h i s c a s e ) t o t h e
    amount t h e employee would h a v e e a r n e d ,
    minus i n t e r i m e a r n i n g s , as o f t h e end o f
    t h e f i r s t q u a r t e r h e was t e r m i n a t e d . To
    a r r i v e a t i n t e r e s t due i n subsequent
    q u a r t e r s t h e f i r s t r a t e (50% h e r e ) is
    r e d u c e d by o n e f o u r t h o f t h e amount o f
    t h e adjusted prime rate i n e f f e c t a t t h e
    time ( 6 % x 1 / 4 = 1 . 5 % h e r e ) . "
    I n response t o t h e C i t y ' s argument, we n o t e i n i t i a l l y
    t h a t t h e i n t e r e s t r a t e was n o t compounded.                     The a d d i n g o f
    i n t e r e s t f o r each quarter             is m e r e l y a s h o r t h a n d method o f
    calculation.               Thus,       assuming         that       section          25-9-205(1)
    controls,         the      calculations          are     not       in     violation           of     the
    prohibition            against         compounding.              However,           we    are n o t
    convinced         that     the     statute        prevents         the        use   of    variable
    r a t e s when c a l c u l a t i n g i n t e r e s t d u e o n b a c k p a y a w a r d s .
    Several        states        impose     statutory         restrictions              on     the
    amount of        i n t e r e s t t h a t may b e a w a r d e d o n c o u r t j u d g m e n t s .
    See e.g.,         Fla.     Stat.       Ann.    sec.     55.03(1)          (West S u p p .          1984)
    (12     percent);          Or.     Rev.       Stat.      sec.      82.010(3)             (1983)       (9
    percent).          These states i n p a r t i c u l a r have p u b l i c employee
    l a b o r r e l a t i o n s laws s i m i l a r t o M o n t a n a ' s .        We note that,           in
    awarding        back      pay    and      interest       thereon,             personnel       appeal
    boards i n those s t a t e s have l i m i t e d i n t e r e s t awards t o t h e
    s t a t u t o r y maximum r a t e .        H i a l e a h Housing A u t h o r i t y , 4 N a t ' l
    Pub.    Empl.      Rep.     (Lab. R e l .      P r e s s ) 777     ( F l a Pub.        Empl.       Rel.
    Comm'n Nov.          12,     1 9 8 1 ) ; Coos County 3 N a t ' l                Pub.     Empl.       Rep
    (Lab.     Rel.     Press)        589    (Or.     Empl.      Rel.        Bd.    Oct.      3,    1980).
    From our survey of other jurisdictions, it appears that the
    Florida and Oregon precedents may               be        followed elsewhere.
    Unfortunately,           there    are no   judicial opinions             on    the
    correctness of these administrative decisions.
    Taking     into     consideration       the       justification        for
    awarding interest on any monetary judgment and the remedial
    purposes      of   the     Montana    Public    Employees1 Collective
    Bargaining Act, we conclude that the Florida Steel method
    for calculating interest is lawful.                  Section 39-31-406(4),
    which      gives   the    Board    authority    to    award     back   pay     and
    related       remedies,      is     identical        to    29   U.S.C.        sec.
    160(c)(1976), which the N.L.R.B.            relies upon to award back
    pay and interest in federal labor relations cases.                        While
    both section 25-9-205 and the above-cited labor law statutes
    contemplate that interest on awards or judgments recognizes
    the debtor-creditor relationship between parties to an
    action, labor relations law employs interest for more than
    compensation for the loss of use of the employee's money.
    The award of interest encourages more prompt compliance with
    Board orders and discourages the commission of unfair labor
    practices, thereby effectuating the legitimate ends of labor
    legislation.        See Florida Steel, 231 N.L.R.B.               at 651, 96
    L.R.R.M.      at 1071, 1072; Isis Plumbing and Heating, 138
    N.L.R.B.     at 719, 720, 51 L.R.R.M.       at 1124, 1125.
    Thus, the statutory provision on interest must not
    supplant, but       should       complement,    the       legitimate ends of
    public policy.       Here, section 25-9-205(1) does apply to the
    extent that Young is entitled to ten percent per annum on
    the   judgment, which        includes the award             of back    pay     and
    interest as calculated by             the Board, after the district
    court affirmance of the Board order.                Section 25-9-205(1)
    does - however, prevent
    not,                             the use of the Florida Steel
    formula at the administrative stage of these proceedings.
    One final argument of the City must be addressed.                In
    its reply brief, the City reiterates its initial argument
    that,   following N.L.R.B.          precedent,    the Board    should    be
    limited to awards of six percent based on federal appellate
    court decisions.         The City argues that N.L.R.B.         decisions
    like Florida Steel, rendered subsequent to these court
    holdings,      cannot, as administrative rulings, overrule
    federal court precedents.            This argument misapprehends the
    role of judicial review of             these administrative rulings.
    Federal court decisions that affirm N.L.R.B.              rulings do so
    because the rulings are based on substantial evidence and
    are in accord with the N.L.R.B.'s          statutory mandate.      Should
    the N.L.R.B.        determine at some future time that, in view of
    changing factual conditions, a new ruling or policy should
    be   implemented, that policy will be measured on judicial
    review by      the same or        similar principles     of   substantial
    evidence      and    statutory    compliance     that were employed      in
    previous judicial decisions, not by whether the new ruling
    is in accord with the previous court decisions.               See, e.g.,
    North Cambria Fuel Co. v. N.L.R.B.             (3d Cir. 1981), 6 4 
    5 F.2d 177
    , cert den. 4 5 
    4 U.S. 1123
    , 
    102 S. Ct. 970
    , 
    71 L. Ed. 2d 110
    ,
    where   the    court upheld       an N.L. R.B.     interest-on-back     pay
    award using a twelve percent rate on grounds that it was
    within the N.L.R.B.'s       statutory discretion to implement.          We
    will adhere to the same principles when evaluating appeals
    of future Board decisions.
    The decision of the District Court affirming the order
    of the Board of Personnel Appeals is affirmed.
    ,/
    We concur: