Atlantic Limousine v. NLRB ( 2001 )


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  •                                                                                                                            Opinions of the United
    2001 Decisions                                                                                                             States Court of Appeals
    for the Third Circuit
    3-16-2001
    Atlantic Limousine v. NLRB
    Precedential or Non-Precedential:
    Docket 99-5609
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    Recommended Citation
    "Atlantic Limousine v. NLRB" (2001). 2001 Decisions. Paper 50.
    http://digitalcommons.law.villanova.edu/thirdcircuit_2001/50
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    Filed March 16, 2001
    UNITED STATES COURT OF APPEALS
    FOR THE THIRD CIRCUIT
    Nos. 99-5609 and 99-5725
    ATLANTIC LIMOUSINE, INC.,
    Petitioner No. 99-5609
    v.
    NATIONAL LABOR RELATIONS BOARD,
    Respondent
    NATIONAL LABOR RELATIONS BOARD,
    Petitioner No. 99-5725
    v.
    ATLANTIC LIMOUSINE, INC.,
    Respondent
    On Petition for Review of an Order of the
    National Labor Relations Board
    and
    Cross-Application for Enforcement
    (NLRB Docket Nos. 4-CA-21505, 4-CA-21552,
    4-CA-21697, and 4-CA-21740)
    Argued December 1, 2000
    Before: BECKER, Chief Judge, RENDELL,
    and MAGILL,* Circuit Judges
    (Opinion Filed: March 16, 2001)
    _________________________________________________________________
    * Honorable Frank J. Magill, Senior Judge of the United States Court of
    Appeals for the Eighth Circuit, sitting by designation.
    Angelo J. Genova, Esq. [ARGUED]
    Brian O. Lipman, Esq.
    GENOVA, BURNS & VERNOIA
    354 Eisenhower Parkway
    Plaza II, Suite 2575
    Livingston, NJ 07039
    Counsel for Atlantic Limousine
    Jeffrey Horowitz, Esq. [ARGUED]
    Aileen A. Armstrong, Esq.
    Frederick C. Havard, Esq.
    Margaret A. Gaines, Esq.
    Fred B. Jacob, Esq.
    National Labor Relations Board
    1099 14th Street N.W.
    Washington, DC 20570-0001
    Counsel for NLRB
    OPINION OF THE COURT
    RENDELL, Circuit Judge.
    Atlantic Limousine, a limousine service providing services
    primarily to hotels and casinos in Atlantic City, New Jersey,
    has petitioned this court for review of the Or der of the
    National Labor Relations Board awarding backpay in the
    amount of $22,507.74 plus interest to V ictor Jenkins, and
    $17,296.73 plus interest to Henry Purcell, both of whom
    were limousine drivers for Atlantic. The Boar d has cross-
    applied for enforcement of the same order .
    Specifically, Atlantic challenges the amount of tips the
    Board determined the two had earned, arguing that: (1)
    federal tax policy requires that the amount of tips Purcell
    and Jenkins declared on their income tax r eturns for those
    periods be dispositive on the issue of their past income; and
    (2) there was a lack of substantial evidence in support of
    the Board's backpay award. In addition, Atlantic contends
    that Jenkins failed to mitigate his damages because he was
    unavailable for work during the seven months between his
    termination and his reinstatement. Because we find both
    that the Board's reliance on the evidence adduced was
    2
    proper, and that there was substantial evidence to support
    the Board's findings regarding both backpay and
    mitigation, we will deny the petition for review and enforce
    the order of the Board.
    I. Procedural History
    On March 4, 1995, the Board found that Atlantic had
    engaged in unfair labor practices in violation of 29 U.S.C.
    158(a)(3) and (4) of the National Labor Relations Act ("Act")
    by discharging four and suspending one of its employees
    for their union activities.1 Once the Board finds that an
    employer has committed an unfair labor practice, it has
    broad discretion under the Act to or der the wrongdoer "to
    take such affirmative action including r einstatement of
    employees with or without backpay, as will ef fectuate the
    policies of [the Act]." 29 U.S.C. S 160(c). The purpose of the
    backpay remedy is to "mak[e] the employees whole for
    losses suffered on account of an unfair labor practice,"
    Nathanson v. NLRB, 
    344 U.S. 25
    , 27 (1953), by r estoring
    "the situation, as nearly as possible, to that which would
    have [been] obtained but for the illegal discrimination."
    Phelps Dodge Corp. v. NLRB, 
    313 U.S. 177
    , 194 (1941).
    On May 28, 1997, the Board filed a compliance
    specification outlining the amount of backpay that should
    be paid to the aggrieved employees under the Boar d's
    March 4, 1995 remedial order. Atlantic challenged the
    compliance specification, and a hearing was held before an
    Administrative Law Judge ("ALJ"). The ALJ upheld the
    backpay award, and the Board affir med its decision. We
    now review the Board's order.
    II. Background
    The standard formula the Board employs in arriving at a
    compliance specification is based on the ear nings of the
    claimant in a representative period prior to the backpay
    _________________________________________________________________
    1. Although the proceeding before the Board involved five claimants, after
    the Board's decision, the parties enter ed into negotiations and three of
    those employees settled. This appeal, therefor e, only addresses the
    backpay awards for Purcell and Jenkins.
    3
    period. The Board then applies the averages of those
    earnings to the backpay period. Atlantic does not challenge
    the formula used. Rather, it contends that the average
    weekly tip earnings used in the formula were incorrect
    because they exceeded the amounts reported on the
    employees' tax returns and were unsupported by the
    evidence.
    Atlantic's drivers can be tipped in a variety of ways.
    Certain corporate and business clients have a contractual
    relationship with Atlantic, and are billed for services with
    charges that include a preset gratuity for the driver, which
    is distributed in the next paycheck. These tips ar e referred
    to as "tips on the bill." The drivers can also receive tips in
    cash or they can be added to a payment by cr edit card.
    Because tips on the bill and credit car d tips are reflected in
    amounts transmitted directly to Atlantic, the only tip
    amounts disputed on appeal are the claimants' cash tips,
    since the drivers receive them directly fr om customers
    without receipts showing the amount given.
    Atlantic requires its drivers to submit weekly time sheets
    indicating the number of hours they worked and the
    specific runs they made. These sheets also have a space at
    the bottom for the drivers to record the amount of cash tips
    they received, though the General Manager for Atlantic,
    Leon Geiger, testified that most drivers do not provide any
    information regarding their cash tips on their time sheets.
    Atlantic processes the timesheets and generates weekly tip
    declarations reflecting credit car d tips, tips on the bill, and
    the cash tips reported on the time sheets. These tip
    declaration reports are then distributed to the drivers for
    their review and signature. The employees are instructed
    not to sign a tip declaration report if the tip amount
    indicated is incorrect.
    Jenkins and Purcell claimed that they ear ned more in
    tips than reported in payroll and tax documents. Jenkins
    testified that he earned approximately $450 per week in
    tips, while Purcell claimed to have ear ned anywhere from
    $300 to $480 per week. Both admitted they had not
    accurately reported these earnings to the Internal Revenue
    Service ("IRS"). Jenkins had reported annual tip income to
    the IRS that reflected an average of $158 per week during
    4
    this time, and Purcell, $115. Jenkins also testified that he
    would submit only the carbon copy of the time sheet to
    Atlantic, omitting his cash tips, but that he would record
    his cash tips on the original copy in a column listed as
    "Added Tips." He submitted the original copy of the time
    sheet for the last week he had worked for Atlantic in order
    to demonstrate this practice. This original copy r eflected
    cash tip earnings of $430 for that week. That document
    was the only one submitted by Jenkins in support of his
    claim of higher tip levels. Purcell did not pr ovide any
    documentation.
    Jenkins also testified regarding his search for interim
    employment. He indicated that he searched for employment
    during the seven months he was unemployed by applying
    to two limousine companies approximately two weeks after
    he was terminated, answering newspaper ads for jobs at
    three casinos, and sending out many resumes. During
    those seven months, he was caring for his mother , who was
    ill. He stated that because his mother was sick and he was
    her caretaker, he was only available for work in the evening
    hours, though he explained that his time restriction did not
    prevent him from being able to work full-time. He also
    emphasized that he searched for employment during the
    entire period in question. He posited that the reason he
    could not find another limousine job right away was
    because he was "blackballed."
    Seeking to counter the testimony of Jenkins and Pur cell,
    Atlantic provided payroll recor ds for 1992 and 1993
    reflecting credit card tips, tips on the bill, and any cash tips
    declared by employees to Atlantic. Atlantic ur ged that these
    records, along with the tax retur ns filed by Jenkins and
    Purcell, should form the basis for deter mining its backpay
    liability.
    On February 26, 1998, the ALJ issued its Supplemental
    Decision awarding Jenkins and Purcell $360 and $325 per
    week in backpay, respectively, which wer e the amounts set
    forth in the Board's compliance specification. First, the ALJ
    ruled that claimants may assert tip income that had not
    been reported in their tax returns. While the ALJ
    recognized that both claimants had failed to r eport all of
    their tip earnings to the IRS, he found that an admission of
    5
    underreporting tips to the IRS does not pr eclude such tips
    from being included in a backpay award. The ALJ also
    determined that "both the employees and the Respondent
    had offsetting interest [sic] in under reporting actual
    income." ALJ Dec. at 4.
    The ALJ stated its conclusion: "While the evidence is less
    than overwhelming, under these circumstances, I am not
    persuaded that the compliance figures for weekly tips of
    $360 for Jenkins and $325 for Purcell ar e unreasonable or
    inaccurate." 
    Id. The ALJ
    further noted that "[t]he reported
    tips, relied upon by [Atlantic], clearly are not an accurate
    reflection of the actual tip income r eceived." 
    Id. The ALJ
    also found the testimony of Jenkins and Purcell to be
    "believable." 
    Id. Finally, the
    ALJ concluded that there was
    "a sound and reasonable basis for [awar ding] the figures set
    forth in the compliance specification," and that Atlantic had
    not offered convincing evidence that Jenkins and Purcell
    had earned less. 
    Id. The ALJ
    next turned to the issue of the mitigation of
    damages, finding that Jenkins testified cr edibly that he
    began to search for work immediately after his termination.
    The ALJ found that despite the fact that Jenkins had no
    interim earnings, this lack of success did not indicate a
    "willful failure or an unreasonable search for employment."
    
    Id. In addition,
    the ALJ rejected Atlantic's contention that
    Jenkins was unavailable for work due to his need to care
    for his mother.
    On April 30, 1999, the Board issued its Supplemental
    Decision and Order affirming the ALJ's conclusion that "the
    gross backpay computations in the backpay specifications
    are the most accurate possible estimates of backpay and
    that [Atlantic] has failed to establish any r easonable
    alternative basis for a diminution of damages." 
    Id. The Board
    agreed that "Victor Jenkins' lack of interim earnings
    for the backpay period of May 31, 1993, through January
    17, 1994, was not indicative of an unreasonable search for
    employment related to his care for his mother . . . . " Supp.
    Dec. at 1. It also held that the ALJ's analysis of the issue
    of whether or not to consider evidence of underr eported tips
    was in accord with Board precedent, and noted that the IRS
    would receive a copy of its decision. 
    Id. at 2.
    One member
    6
    of the three member panel dissented because he would not
    have allowed the discriminatees to claim income not
    reported to the IRS, and because he believed that Jenkins
    did not make an adequate search for employment during
    the time period in question.
    III. Discussion
    We have appellate jurisdiction pursuant to 29 U.S.C.
    S 160 (e) and (f). The Board's findings of fact in a backpay
    proceeding will be upheld unless the recor d, considered as
    a whole, shows no substantial evidence to support those
    findings. 88 Transit Lines, Inc. v. NLRB , 
    55 F.3d 823
    , 825
    (3d Cir. 1995). "While we do not substitute our judgment
    for that of the Board, we may modify an or der to ensure
    that it effectuates the policies of the Act." Tubari Ltd., Inc.
    v. NLRB, 
    959 F.2d 451
    , 453 (3d Cir . 1992). With respect to
    legal questions, we exercise plenary review, although we
    give due deference to the Board's expertise in labor matters.
    88 
    Transit, 55 F.3d at 825
    .
    A. Backpay Determination
    Atlantic presented the Board with the income tax returns
    of Jenkins and Purcell, and urged that itfind those records
    to be conclusive as to the amount of tips ear ned by each of
    them, because to not do so would be to ignor e federal tax
    policy. The Board rejected this reasoning, and on appeal,
    Atlantic argues that this decision is err oneous. To support
    its argument, Atlantic relies on two Supr eme Court cases,
    our precedent, and its view of the policy implications of the
    Board's ruling.2
    _________________________________________________________________
    2. By asserting that the discriminatees' testimony should have been
    rejected because their testimony was inconsistent with their sworn tax
    returns, Atlantic may also be claiming, but has never explicitly urged,
    that the discriminatees should be "estopped" from asserting higher
    income, having earlier misreported their true income. While a policy of
    judicial estoppel has evolved that can apply in the event a litigant seeks
    to assert a position inconsistent with one made in connection with a
    previous judicial proceeding, e.g., In re Chambers Dev. Co., 
    148 F.3d 214
    , 229 (3d Cir. 1998), we know of no basis for crafting a theory of
    estoppel based upon sworn statements in a tax return and will not
    explore such a theory sua sponte.
    7
    First, Atlantic points to Southern Steamship Co. v. NLRB,
    
    316 U.S. 31
    (1942). There, employees engaged in a strike in
    response to the shipowner's unfair labor practices, and the
    shipowner terminated five of the strikers. 
    Id. at 34-35.
    The
    Board ordered the shipowner to r einstate the five men with
    backpay. 
    Id. at 36.
    The Supreme Court, however,
    determined that under maritime law, the type of striking
    conduct in which they engaged was illegal,3 and it reversed
    the order of reinstatement. 
    Id. at 40,
    48.
    The Supreme Court expressed the need to limit the
    Board's discretion in enforcing the policies of the Act when
    the Board's remedial action contravened important
    Congressional policy. 
    Id. at 46.
    In r eaching its conclusion
    that the claimants' violation of the maritime laws precluded
    the relief they sought under the Act, the Court made the
    following observation, which Atlantic argues supports its
    position:
    It is sufficient for this case to observe that the Board
    has not been commissioned to effectuate the policies of
    the Labor Relations Act so single-mindedly that it may
    wholly ignore other and equally important
    Congressional objectives. Frequently the entire scope of
    Congressional purpose calls for careful accommodation
    of one statutory scheme to another, and it is not too
    much to demand of an administrative body that it
    undertake this accommodation without excessive
    emphasis upon its immediate task.
    
    Id. at 47.
    Essentially, the issue before the Supreme Court was
    whether the labor policy prohibiting an employer from firing
    an employee for striking in response to an unfair labor
    _________________________________________________________________
    3. The Court stated:
    It may hardly be disputed that each of the strikers resisted the
    captain and other officers in the free and lawful exercise of their
    authority and command, within the meaning of S 293, or that they
    combined and conspired to that end, within the meaning of S 292.
    Deliberately and persistently they defied dir ect commands to
    perform their duties in making r eady for the departure from port.
    
    Id. at 40.
    8
    practice can apply, let alone prevail, when the strike is
    illegal under a competing federal scheme. In the case before
    us, by contrast, the issue does not involve a competing
    policy that runs counter to an award of backpay. Unlike in
    Southern Steamship, the policies sought to be advanced
    here are not diametrically opposed to one another. In fact,
    the policies, to the extent they do compete, can be
    accommodated, and in fact have been accommodated her e.
    The Board's basing its finding on the evidence before it,
    consistent with its procedure for fixing and awarding
    backpay, while at the same time notifying the IRS of its
    decision, recognizes the existence and equal importance of
    both policies -- enforcing our nation's tax laws and making
    the discriminatees' whole. If the Board had chosen to award
    the amount stated on the tax returns for the sole reason
    that the discriminatees would have to "reap what they had
    sown," it would have ignored the remedial underpinnings of
    the law, and rewarded Atlantic, the of fending party.
    Moreover, we submit that while federal tax policy
    discourages underreporting of income, and favors
    punishing those who do, federal tax policy would appear to
    have no interest in limiting a backpay awar d. In fact, it
    could be said that it has the opposite inter est because once
    Jenkins and Purcell receive an awar d (that is not limited by
    reference to reported income), they will have to pay tax on
    what they receive, paying the federal gover nment more than
    if the award had been limited to their r eported income.4
    Here, despite Atlantic's contentions, we conclude that no
    federal policy is relegated to a lesser status. The IRS will
    have the information necessary to prosecute the
    discriminatees if it so chooses, and will reap tax revenue.
    And Atlantic will have to "make whole" two employees
    _________________________________________________________________
    4. Backpay awards for violations of the Act would appear to be the type
    of non-tort recovery that is taxable. See Commissioner of Internal
    Revenue v. Schleier, 
    515 U.S. 323
    , 337 (1995) (holding that settlement
    for backpay in age discrimination case was not excludable from
    taxpayer's reported gross income because"[r]ecovery for back wages does
    not satisfy the critical requirement [of the IRS tax code] of being on
    account of any personal injury," nor is it "based upon tort or tort type
    rights.")
    9
    against whom it wrongly discriminated, fulfilling the
    purpose of the Act.
    Atlantic also relies on Sure-T an, Inc. v. NLRB, 
    467 U.S. 883
    , 886 (1984), but we do not find this decision
    particularly relevant to the instant situation. There, the
    Board had determined that the employer committed an
    unfair labor practice by requesting that the Immigration
    and Naturalization Service investigate certain employees
    who were involved in a union campaign. 
    Id. at 888.
    Because some of these employees were undocumented
    aliens, they fled the country to avoid deportation. 
    Id. at 887.
    The Board awarded backpay, subject to the employees'
    legal availability to work. 
    Id. at 889.
    On appeal, the Court of Appeals for the Seventh Cir cuit
    modified the backpay award by ordering that the aggrieved
    employees be guaranteed a minimum of six months'
    backpay. 
    Id. at 890.
    The court reasoned that because some
    of the employees may not have been lawfully available for
    employment, without the backpay minimum, they would
    not receive any backpay at all. 
    Id. The Supreme
    Court
    reversed the backpay modification, stating:"The probable
    unavailability of the Act's more effective remedies in light of
    the practical workings of the immigration laws, however,
    simply cannot justify the judicial arrogation of remedial
    authority not fairly encompassed within the Act." 
    Id. at 904.
    The key to the Court's reversal of the modification was
    the Court of Appeals' imposition of a minimum awar d
    "without regard to the employees' actual economic losses or
    legal availability for work . . . . plainly exceed[ing] its limited
    authority under the Act." 
    Id. at 904-05.
    And, while the
    Board in the instant case surely shar ed the same concern
    as the court of appeals in Sure-T an, that is, providing a
    financial disincentive to the employer against r epetition of
    similar discrimination, 
    id. at 904,
    her e, unlike in Sure-Tan,
    the award of backpay does reflect the discriminatees' actual
    loss, consistent with the remedial scheme.
    Atlantic also maintains that the Board's decision is
    contrary to our precedent. We do not agr ee. We have
    previously upheld an award of backpay when it was based
    on evidence of income in an amount differ ent from that
    declared by the claimant to the IRS. In NLRB v. Louton, Inc.,
    10
    
    822 F.2d 412
    , 414 (3d Cir. 1987), we upheld the Board's
    backpay award where the recor d showed substantial
    evidence to support the tip income awarded. 5 In doing so,
    we rejected the employer's argument that the tip income
    evidence was "of no value" since it dif fered from the amount
    the discriminatees had declared to the IRS. 
    Id. Moreover, while
    we note Atlantic's ar gument that
    awarding backpay based on unreported tips rewards the
    discriminatees for their dishonesty to the IRS, Atlantic fails
    to recognize that we would be rewar ding the employers' tax
    dishonesty if we were to disregard evidence of the
    employees' actual, more substantial reportable income.
    That is, if we rely on reported income that concededly did
    not accurately reflect the employee's ear nings, we would
    actually be rewarding employers who, as noted by the ALJ,6
    have benefitted from paying a lesser amount of
    employment-related taxes as a result of the underreporting.
    This benefit is in addition to the benefit that Atlantic would
    reap, in contravention of backpay policy, by having to pay
    aggrieved employees less in backpay than they actually
    would have earned.
    Lastly, Atlantic contends that if we reject its proposed
    rule that we should disregard evidence that differs from an
    employee's tax returns, we would be guaranteeing that all
    discriminatees seeking backpay will lie about their
    earnings. However, Atlantic ignor es the fact that this
    deception will probably be quite costly in other ways. By
    testifying that they had underreported their income to the
    IRS, Purcell and Jenkins subjected themselves to
    prosecution for tax evasion. Therefor e, any incentive that
    they might have to lie to inflate their income is countered
    _________________________________________________________________
    5. We acknowledge that, as we discuss below, the discriminatees
    provided more documentary support in Louton than in the instant case,
    and we note that it is unclear whether the employer's argument in that
    case was based on policy considerations. However , the distinction is
    immaterial, where, as here, we have nonetheless determined that the
    discriminatees' credible testimony (and supporting document) are
    sufficient to meet the "substantial evidence" standard.
    6. "[T]he lower the reported earnings [of an employee are], the lower the
    employer's payroll tax liability [is]." ALJ Dec. at 4.
    11
    by the fear, and very real possibility, of criminal charges.
    We noted this in Louton, when we found that the employees'
    claims were actually strengthened by the fact that they had
    maintained the veracity of their tip claims in the face of
    potential prosecution for tax evasion or 
    perjury. 822 F.2d at 414
    .
    Accordingly, we reject Atlantic's contention that the
    evidence regarding the discriminatees' unr eported tips in
    the Board's backpay award should be disr egarded because
    it undermines federal tax policy.
    B. Substantial Evidence Determination
    As noted above, the Board's findings of fact in a backpay
    proceeding will be upheld unless the recor d, considered as
    a whole, shows no substantial evidence to support those
    findings. 88 
    Transit, 55 F.3d at 825
    . Substantial evidence
    has been defined as evidence that a reasonable mind would
    accept as adequate to support an agency's conclusion.
    Broome v. U.S. Dept. of Labor, 870 F .2d 95, 102 (3d Cir.
    1989). We will not disturb a backpay or der "unless it can be
    shown that the order is a patent attempt to achieve ends
    other than those which can be fairly said to ef fectuate the
    policies of the Act." 88 
    Transit, 55 F.3d at 825
    .
    In Louton, we held that "the recor d, when considered as
    a whole, shows substantial evidence to support the Board's
    
    findings." 822 F.2d at 414
    . In that case, the Board's
    decision was based on documented tip evidence of the
    discriminatees, the ALJ's determination that the
    discriminatees were credible, the fact that the
    discriminatees' testimony was bolstered by their facing
    prosecution for perjury or tax evasion due to their
    admission that they had underreported their tips to the
    IRS, and the employer's failure to submit gr oss receipts in
    order to demonstrate that the tips being claimed were
    reasonable. 
    Id. In the
    instant case, the discriminatees' claims wer e
    proven, for the most part, through their own testimony, and
    accordingly, the outcome was affected by their credibility.
    In Louton, we stressed the importance of the ALJ's reliance
    on the demeanor of the discriminatees during their
    12
    testimony regarding their tip income, noting that where
    credibility determinations are based on the ALJ's
    assessment of demeanor, those determinations are entitled
    to great deference as long as relevant factors are considered
    and resolutions explained. Id.; see also NLRB v. Lee Hotel
    Corp., 
    13 F.3d 1347
    , 1351 (9th Cir . 1994) (enforcing
    Board's order basing backpay award on amount of tip
    income which differed from amount r eported on income tax
    returns where ALJ found employees' testimony credible
    based on both corroborative evidence and potential
    ramifications of the discriminatees' testimony). In the
    instant case, while the documentary evidence was not
    comparable to the submissions in Louton, the ALJ credited
    the discriminatees' testimony, harkening back to our stated
    view in Louton regarding the importance of credibility and
    the deference we should afford the ALJ's determinations in
    the absence of any evidence indicating 
    otherwise. 822 F.2d at 414
    ; Lee 
    Hotel, 13 F.3d at 1351
    ("The ALJ's credibility
    determinations should not be reversed unless inherently
    incredible or patently unreasonable").
    In addition, Jenkins presented the original copy of the
    time sheet he had submitted for the week of May 19, 1993,
    which indicated he had made $430 in cash tips that week.
    He acknowledged that the carbon copy of that time sheet,
    which was submitted to Atlantic, did not reflect any cash
    tips. Thus, he asserted that this document corr oborates his
    testimony that he would leave the space for cash tips blank
    on the copy of the time sheet he gave to his employer, while
    keeping another for himself where he recor ded his tips.
    This document is the only written proof of the unreported
    tips earned. As we have noted, the ALJ concluded that
    while the evidence was not "overwhelming," the Board had
    "established a sound and reasonable basis for the figures
    set forth in the compliance specification . . . ." and he was
    not persuaded that the figures were"unreasonable or
    inaccurate." ALJ Dec. at 4.
    In a backpay proceeding, once the Board's General
    Counsel demonstrates the gross amount of backpay that
    the claimant is due, the burden shifts to the employer to
    demonstrate that no backpay is due or that the amount
    due had been improperly determined. 88 Transit Lines, 
    55 13 F.3d at 827
    ; Angle v. NLRB, 683 F .2d 1296, 1301 (10th Cir.
    1982); NLRB v. United Bhd. of Carpenters & Joiners of Am.,
    Local 1913, 
    531 F.2d 424
    , 426 (9th Cir . 1976). If there is
    substantial evidence supporting the Board's conclusion that
    Atlantic has not met its burden "to establish facts which
    would negative the existence of liability . . . . or which
    would mitigate that liability," we must uphold the Board's
    conclusion. 88 Transit Lines, 55 F .3d at 827; see also
    
    Angle, 683 F.2d at 1302
    (granting the Board's order for
    enforcement where employer did not pr esent necessary
    "sufficient credible evidence" to support assertions that
    Board's calculations were wrong); 
    Carpenters, 531 F.2d at 426
    (upholding Board's conclusion where employer had
    "not met its burden of negativing the General Counsel's
    findings").
    Atlantic submitted evidence that it contends was pr oof of
    the discriminatees' income. It relied on the tax return
    evidence, which, as we have mentioned, could be said to
    cut both ways. Even though the tax retur ns contradict the
    discriminatees' claims, the fact that their swor n testimony
    that they underreported their income exposed them to tax
    evasion and perjury charges actually bolsters their
    credibility. 
    Louton, 822 F.2d at 414
    . Aside from its assertion
    that disregarding tax evidence under mines an important
    congressional policy, which we have rejected, Atlantic
    presented no basis for concluding that the employees' tax
    returns, rather than their testimony, r eflected the actual
    amount of their income. Atlantic also submitted the weekly
    signed tip declarations, urging that these for ms were the
    employees' "oaths" that they had declar ed all the cash tips
    they had earned, and that they should have to stand by
    what they declared. However, the evidence in this regard
    was conflicting. Jenkins testified that David Geiger, one of
    Atlantic's owners, had actually instructed him not to enter
    his cash tips on the carbon copy of the time sheet that he
    submitted. Jenkins stated that the time sheet was even
    returned to him once when he mistakenly wrote his cash
    tips on that form. Further, Leon Geiger testified, and
    Atlantic does not dispute, that most workers did not write
    in any cash tips on their time sheets. It seems obvious that
    Atlantic was aware that most employees wer e earning, but
    simply not declaring, their cash tips. Hence, we do not take
    14
    issue with the ALJ's finding that Atlantic's position that the
    time sheets actually reflected total tips was nothing more
    than a "fiction." ALJ Dec. at 3.
    Atlantic also attacks the quality of the evidence that
    Jenkins and Purcell have produced to support their claims
    of tips earned, contending that they lack corr oboration.
    However, we do not regard that as dispositive. Rather, we
    deem it fairly common for employees not to keep r ecords of
    the tips they earn. Further, as a practical matter, it would
    probably be difficult for Purcell and Jenkins to bring
    forward witnesses to corroborate their actual tip income
    and earnings, given the fact that if their co-workers testified
    that they too had declared lower cash tips than what they
    actually had earned and reported, they would be subjecting
    themselves to prosecution for tax fraud. And, the issue
    before us under the substantial evidence standard is
    whether a reasonable mind would accept the evidence as
    adequate, not whether it could have been bolster ed through
    corroboration or additional testimony.
    Atlantic complains that there really is no defense an
    employer can present to overcome the discriminatees'
    assertions, but we disagree. Atlantic could have leveled
    further attacks on the employees' credibility, kept the type
    of records that would have rebutted these types of claims,
    or produced witnesses to attack the claimants' stories.
    Atlantic did not submit other evidence which would tend to
    disprove the discriminatees' claims. As in Louton, where we
    noted the company's failure to produce gr oss receipts which
    would have allowed the ALJ to ascertain whether the tips
    asserted by the discriminatees were 
    reasonable, 822 F.2d at 414
    , here, Atlantic did not introduce r eceipts of total sales
    from which we could glean how much the drivers should
    have earned in tips. Atlantic's urging that the
    discriminatees should be foreclosed based on their tax
    returns and purported tip declarations does not convince
    us that the Board's decision lacks substantial evidentiary
    support.
    Atlantic's attacks on the employees' proof, and its
    excuses for lack of evidence, cannot distract us fr om the
    fact that the burden of proof is on the employer, as the
    wrongdoer, to establish facts to dispute the claim of the
    15
    aggrieved employee. NLRB v. Brown & Root, Inc., 
    311 F.2d 447
    , 454 (8th Cir. 1963). Once Jenkins and Purcell had
    presented their case, the onus for the pr oduction of
    witnesses was not on the claimant, but rather , on Atlantic.
    In Hacienda Hotel and Casino v. Willow Bowe , 
    279 N.L.R.B. 601
    , 602 (1986), the ALJ had the benefit of the testimony
    of the discriminatee's co-workers, and yet these witnesses
    were produced not by the discriminatee, but by her
    employer, who submitted the conflicting testimony in an
    effort to at least limit the discriminatee's backpay to the
    lesser amount testified to by the plaintiff 's fellow waitresses.7
    
    Id. at 604.
    Here, Atlantic did not pr oduce similar testimony,
    and, as we have explained, the evidence it did intr oduce
    was not really persuasive on the issue.
    The Board's dissent also questioned the ALJ's
    calculations because both the ALJ's award and the
    compliance specification concluded that backpay should be
    in an amount that differed from both what Atlantic alleged
    the discriminatees earned, and what the discriminatees
    themselves claimed to have earned. Yet, as observed by the
    Board, the tip amounts for Jenkins and Pur cell used in the
    compliance specification and adopted by the ALJ ar e only
    approximations that "fall within the middle range of the tip
    income claimed by the discriminatees in their testimony."
    Supp. Dec. at 2. This methodology, while a bit impr ecise,
    does not render the award invalid. See Buncher v. NLRB,
    
    405 F.2d 787
    , 790 (3d Cir. 1968) (en banc) (stating that
    Board seeks only "approximation" of backpay owed and
    thus specification was not objectionable on gr ound of
    inconsistencies with work histories of some employees).
    Also, in Hacienda 
    Hotel, 279 N.L.R.B. at 605
    , when
    quantifying the amount of backpay, the Board attempted to
    resolve significant testimonial conflict over the amount of
    tips cocktail waitresses received, and arrived at a
    reasonable approximation based on the evidence before it.
    _________________________________________________________________
    7. We note that while conflicting testimony lends support to an
    employer's assertion that an employee is lying about the amount of tips
    earned, this type of evidence is also not dispositive. In Hacienda Hotel,
    the Board upheld the backpay award even though it exceeded both the
    discriminatee's tax returns and the amounts testified to by the other
    witnesses.
    16
    In doing so, the Board noted that "exactitude is not
    possible . . . ." 
    Id. We agr
    ee that such approximations are
    not improper.
    We therefore find that, viewing the record as a whole, the
    Board's order of backpay was supported by substantial
    evidence.
    C. Substantial Evidence of Mitigated Damages
    Atlantic also contends that by failing to make r easonable
    efforts to obtain interim employment, Jenkins did not
    mitigate his damages and Atlantic is, therefor e, not
    obligated to pay Jenkins back wages. See Tubari , 959 F.2d
    at 454 (holding that where employee has not exercised
    reasonable diligence in efforts to secur e employment,
    employer has established that employee did not pr operly
    mitigate damages). Once the amount of backpay has been
    established, the burden to produce evidence of a failure to
    mitigate is on the employer. 
    Id. at 453.
    This burden is
    heavy: "A discharged worker is not held to the highest
    standard of diligence in his or her efforts to secure
    comparable employment; reasonable exertions ar e
    sufficient." NLRB v. Mercy Peninsula Ambulance Serv., 
    589 F.2d 1014
    , 1018 (9th Cir. 1979); see also NLRB v. Westin
    Hotel, 
    758 F.2d 1126
    , 1130 (6th Cir . 1985) ("[A] wrongfully-
    discharged employee is only requir ed to make a reasonable
    effort to mitigate damages, and is not held to the highest
    standard of diligence"); Fabi Fashions, Inc. v. Local 107, 
    291 N.L.R.B. 586
    , 587 (1988) ("[I]n seeking to mitigate loss of
    income a backpay claimant is held . . . only to`reasonable
    exertions in this regard, not the highest standard of
    diligence' . . . . The principle of mitigation of damages does
    not require success, it only requir es an honest good faith
    effort . . . .") (quoting NLRB v. Ar duini Mfg. Corp., 
    394 F.2d 420
    , 423 (1st Cir. 1968)). Once again, we r eview the factual
    determination of the Board regar ding Jenkins' due diligence
    in seeking interim employment under the standar d of
    substantial evidence. Westin 
    Hotel, 758 F.2d at 1130
    .
    We find that Jenkins' testimony supports the Board's
    determination that his search for employment was not
    unreasonable. Jenkins did testify that during the seven
    17
    month period in question, he was caring for his mother,
    who was ill. Atlantic argues that this r esponsibility made
    him unavailable for work. However, Jenkins testified on
    redirect examination that during the entir e seven months,
    he continued to seek employment in a variety of ways.
    Jenkins also noted that he was still caring for his mother
    when he did find a position, which supports his ar gument
    that would have accepted full-time work throughout the
    seven month period in question. Based on his testimony as
    a whole, we agree with the Board that ther e is substantial
    evidence that Atlantic has not met its burden of
    establishing that Jenkins' lack of interim ear nings was
    indicative of an unreasonable search for employment, and
    therefore, we find that Atlantic has not established the
    affirmative defense of failure to mitigate his damages.
    IV. Conclusion
    For the foregoing reasons we will deny the Petition for
    Review of the Order of the National Labor Relations Board
    and grant the Cross-Application for Enfor cement of the
    Order of the National Labor Relations Boar d.
    A True Copy:
    Teste:
    Clerk of the United States Court of Appeals
    for the Third Circuit
    18