los angeles dept water power manhart argued january decided april suit filed class action behalf present former female employees petitioner los angeles department water power alleging department requirement female employees make larger contributions pension fund male employees violated title vii civil rights act inter alia makes unlawful employer discriminate individual individual sex department pension plan based mortality tables experience showing female employees greater longevity male employees cost pension average female retiree greater average male retiree monthly payments made female district held contribution differential violated ordered refund excess contributions antedating amendment department pension plan made suit pending eliminated sexual distinctions plan contributions benefits appeals affirmed held challenged differential department former pension plan violated pp differential discriminatory treatment person manner person sex different statute focuses fairness individuals rather fairness classes precludes treating individuals simply components group sexual class even though true women class outlive men generalization justify disqualifying individual apply reason moreover believe congress intended special definition discrimination context employee group insurance since context common considered unfair treat different classes risks though pp though department contends different contributions exacted men women based factor longevity rather sex thus constituted statutory exemption authorized differential based factor sex evidence factor employee sex accounted differential pp case readily distinguishable general electric gilbert pension plan discriminates basis sex whereas plan gilbert discriminated basis special physical disability pp inappropriate district allow retroactive monetary recovery case pp though presumption favors retroactive relief title vii violation committed albemarle paper moody appropriateness relief individual case must assessed district gave insufficient attention equitable nature title vii remedies first litigation challenging pension fund contribution differences based valid actuarial tables fund administrators may well assumed justified differential resulting prohibition employee contributions constituted marked departure past practice pp view grave consequences drastic changes legal rules pension funds rules given retroactive effect unless plainly commanded legislative action pp stevens delivered opinion stewart white powell joined part iv marshall joined part iv burger blackmun rehnquist joined blackmun filed opinion concurring part concurring judgment post burger filed opinion concurring part dissenting part rehnquist joined post marshall filed opinion concurring part dissenting part post brennan took part consideration decision case david oliphant argued cause petitioners briefs burt pines david hanson robert dohrmann argued cause respondents brief kenneth schwartz laurence steinsapir howard knee katherine stoll burns briefs amici curiae urging reversal filed james redden attorney general al laue solicitor general william hoelscher assistant attorney general state oregon harry du brin new york state teachers retirement system briefs amici curiae urging affirmance filed solicitor general mccree assistant attorney general days deputy solicitor general wallace thomas martin brian landsberg cynthia attwood abner sibal joseph eddins beatrice rosenberg mautner et al ruth bader ginsburg marjorie mazen smith matthew finkin american civil liberties union et al michael evan gold fred okrand aclu foundation southern california jonathan harkavy american nurses assn marguerite rawalt margaret young association women mathematics et al john fillion stephen berzon fred altshuler albert woll laurence gold international union automobile aerospace agricultural implement workers america et al briefs amici curiae filed bernard richland kevin sheridan city new york edward silver larry lavinsky stephen tisman william harman american council life insurance lawrence latto society actuaries et al william glendon james weidner james paul teachers insurance annuity association america et al justice stevens delivered opinion class women live longer men reason los angeles department water power required female employees make larger contributions pension fund male employees granted certiorari decide whether practice discriminated individual female employees sex violation civil rights act amended many years department administered retirement disability programs employees upon retirement employee eligible monthly retirement benefit computed fraction salary multiplied years service monthly benefits men women age seniority salary equal benefits funded entirely contributions employees department augmented income earned contributions private insurance company involved administration payment benefits based study mortality tables experience department determined female employees average live years longer male employees cost pension average retired female greater average male retiree monthly payments must made average woman department therefore required female employees make monthly contributions fund higher contributions required comparable male employees employee contributions withheld paychecks female employee took home less pay male employee earning salary since effective date equal employment opportunity act department employer within meaning title vii civil rights act see supp respondents brought suit district central district california behalf class women employed formerly employed department prayed injunction restitution excess contributions action pending california legislature enacted law prohibiting certain municipal agencies requiring female employees make higher pension fund contributions males department therefore amended plan effective january current plan draws distinction either contributions benefits basis sex motion summary judgment district held contribution differential violated ordered refund excess contributions made amendment plan appeals ninth circuit affirmed department various amici curiae contend differential pay men women discrimination within meaning offset difference value pension benefits provided two classes employees differential based factor sex within meaning equal pay act therefore protected bennett amendment rationale general electric gilbert requires reversal event retroactive monetary recovery unjustified consider contentions turn real fictional differences women men true average man taller average woman true average woman driver accident prone average man civil rights act enacted employer fashion personnel policies basis assumptions differences men women whether assumptions valid well recognized employment decisions predicated mere stereotyped impressions characteristics males females myths purely habitual assumptions woman inability perform certain kinds work longer acceptable reasons refusing employ qualified individuals paying less case however involve fictional difference men women involves generalization parties accept unquestionably true women class live longer men department treated women employees differently men employees two classes fact different equally true however individuals respective classes share characteristic differentiates average class representatives many women live long average man many men outlive average woman question therefore whether existence nonexistence discrimination determined comparison class characteristics individual characteristics stereotyped answer question may answer language purpose statute command statute makes unlawful discriminate individual respect compensation terms conditions privileges employment individual race color religion sex national origin emphasis added statute focus individual unambiguous precludes treatment individuals simply components racial religious sexual national class height required job tall woman may refused employment merely average women short even true generalization class insufficient reason disqualifying individual generalization apply proposition critical importance case assurance individual woman working department actually fit generalization department policy based many individuals live long average man working individuals received smaller paychecks sex receive compensating advantage retire true course contributions collected employees department know individuals predecease average woman therefore unless women class assessed extra charge subsidized extent class male employees follows according department fairness class male employees justifies extra assessment female employees question fairness various classes affected statute essentially matter policy legislature address congress decided classifications based sex like based national origin race unlawful actuarial studies unquestionably identify differences life expectancy based race national origin well sex statute designed make race irrelevant employment market see griggs duke power reasonably construed permit differential based racial classification even statutory language less clear basic policy statute requires focus fairness individuals rather fairness classes practices classify employees terms religion race sex tend preserve traditional assumptions groups rather thoughtful scrutiny individuals generalization involved case illustrates point separate mortality tables easily interpreted reflecting innate differences sexes significant part longevity differential may explained social fact men heavier smokers women finally reason believe congress intended special definition discrimination context employee group insurance coverage true insurance concerned events individually unpredictable characteristic many employment decisions individual risks like individual performance may predicted resort classifications proscribed title vii indeed fact case involves group insurance program highlights basic flaw department fairness argument insurance risks grouped better risks always subsidize poorer risks healthy persons subsidize medical benefits less healthy unmarried workers subsidize pensions married workers persons eat drink smoke excess may subsidize pension benefits persons whose habits temperate treating different classes risks though purposes group insurance common practice never considered inherently unfair insure flabby fit though equivalent risks may common treating men women alike nothing habit makes one subsidy seem less fair employment practice requires individuals contribute money fund employees simply woman rather man direct conflict language policy act practice pass simple test whether evidence shows treatment person manner person sex different constitutes discrimination unlawful unless exempted equal pay act affirmative justification ii shortly enactment title vii senator bennett proposed amendment providing compensation differential based sex unlawful authorized equal pay act passed year earlier equal pay act requires employers pay members sexes wages equivalent work except differential pursuant one four specified exceptions department contends fourth exception applies exception authorizes differential based factor sex department argues different contributions exacted men women based factor longevity rather sex plain however individual life expectancy based number factors sex one record contains evidence factor employee sex taken account calculating differential respective contributions men women agree judge duniway observation one say actuarial distinction based entirely sex based factor sex sex exactly based also unpersuaded department reliance colloquy senator randolph senator humphrey debate civil rights act commenting bennett amendment senator humphrey expressed understanding allow many differences treatment men women industrial benefit plans including earlier retirement options women though address differences employee contributions based sex senator humphrey apparently assumed act little impact existing pension plans statement however fairly made sole guide interpreting equal pay act adopted year earlier statute exceptions department ultimately relies conclude senator humphrey isolated comment senate floor change effect plain language statute iii department argues reversal required general electric gilbert satisfied however neither holding reasoning gilbert controlling gilbert held exclusion pregnancy employer disability benefit plan constitute sex discrimination within meaning title vii relying reasoning geduldig aiello first held general electric plan involve discrimination based upon gender two groups potential recipients case concerned pregnant women nonpregnant persons first group exclusively female second includes members sexes contrast two groups employees involved case composed entirely exclusively members sex face plan discriminates basis sex whereas general electric plan discriminated basis special physical disability gilbert note plan actually administered provided favorable benefits women class men class evidence supported conclusion plaintiffs failed establish prima facie case proving plan discriminatory face also failed prove discriminatory effect case however department argues absence discriminatory effect women class justifies employment practice face discriminated individual employees sex even department actuarial evidence sufficient prevent plaintiffs establishing prima facie case theory effect practice women class discriminatory evidence defeat claim practice face discriminated every individual woman employed department essence department arguing prima facie showing discrimination based evidence different contributions respective sexes rebutted demonstration like difference cost providing benefits respective classes argument might prevail title vii contained defense comparable affirmative defense available price discrimination suit neither congress courts recognized defense title vii although conclude department practice violated title vii suggest statute intended revolutionize insurance pension industries issue today requirement men women make unequal contributions pension fund nothing holding implies unlawful employer set aside equal retirement contributions employee let retiree purchase largest benefit accumulated contributions command open market call question insurance industry practice considering composition employer work force determining probable cost retirement death benefit plan finally recognize case kind may necessary take special care fashioning appropriate relief iv department challenges district award retroactive relief entire class female employees retirees title vii require district grant retroactive relief finds unlawful discrimination may enjoin discrimination order affirmative action may appropriate may include limited reinstatement without back pay equitable relief deems appropriate supp point redundancy statute stresses retroactive relief may awarded appropriate albemarle paper moody reviewed scope district discretion fashion appropriate remedies title vii violation concluded backpay denied reasons applied generally frustrate central statutory purposes eradicating discrimination throughout economy making persons whole injuries suffered past discrimination applying standard ruled award backpay conditioned showing bad faith albemarle also held backpay awarded automatically every case albemarle presumption favor retroactive liability seldom overcome make meaningless district courts duty determine relief appropriate several reasons conclude district gave insufficient attention equitable nature title vii remedies although doubt application statute case must recognize conscientious intelligent administrators pension funds benefit extensive briefs arguments presented us may well assumed program like department entirely lawful courts silent question administrative agencies conflicting views department failure act swiftly sign recalcitrance problem complexity commentators noted pension administrators reasonably thought unfair even illegal make male employees shoulder actuarial share pension burden reason believe threat backpay award needed cause administrators amend practices conform decision ignore potential impact changes rules affecting insurance pension plans may economy fifty million americans participate retirement plans social security assets held trust employees vast growing billion reserved retirement benefits end reserves increasing almost billion year plans like forms insurance depend accumulation large sums cover contingencies amounts set aside determined painstaking assessment insurer likely liability risks insurer foresees included calculation liability rates contributions charged reflect calculation occurrence major unforeseen contingencies however jeopardizes insurer solvency ultimately insureds benefits drastic changes legal rules governing pension insurance funds like unforeseen events effect consequently rules apply funds applied retroactively unless legislature plainly commanded result eeoc recognized administrators retirement plans must given time adjust gradually title vii demands courts also shown sensitivity special dangers retroactive title vii awards field see rosen public serv elec gas supp nj doubt prohibition employee contributions represents marked departure past practice although title vii enacted apparently first litigation challenging contribution differences based valid actuarial tables retroactive liability devastating pension fund harm fall large part innocent third parties courts apparently contemplated plaintiffs contributions recovered pension fund administrators fund forced meet unchanged obligations diminished assets reserve proves inadequate either expectations retired employees disappointed current employees forced pay future security also unanticipated reduction contributions past employees without qualifying force albemarle presumption favor retroactive relief conclude error grant relief case accordingly although agree appeals analysis statute vacate judgment remand case proceedings consistent opinion ordered footnotes addition department petitioners include members board commissioners department members plan board administration plan record brief department plan provides several kinds pension benefits employee option common formula pension equal average monthly salary paid last year employment times number years employment benefit guaranteed life department contributes amount equal employee contributions significance disparity illustrated record one woman whose contributions fund including interest amount withheld month amounted similarly situated male contributed stat effective mar addition five individual plaintiffs respondents include individuals union international brotherhood electrical workers local union see cal govt code ann west supp earlier granted preliminary injunction supp two weeks ninth circuit decision decided general electric gilbert response petition rehearing majority ninth circuit panel concluded original decision conflict gilbert judge kilkenny dissented see nn infra see developments law employment discrimination title vii civil rights act harv rev forbidding employers discriminate individuals sex congress intended strike entire spectrum disparate treatment men women resulting sex stereotypes section subjects scrutiny eliminates irrational impediments job opportunities enjoyment plagued women past sprogis air lines size subsidy involved case open doubt department plan provides survivors benefits since female spouses male employees likely greater life expectancies male spouses female employees whatever benefits men lose primary coverage may regain secondary coverage wives example life expectancy white baby years nonwhite baby expect live years difference years see public health service iia vital statistics table fortifying conclusion fact banned higher life insurance rates blacks since century see generally james metropolitan life study business growth see retherford changing sex differential mortality social causes drinking eating habits perhaps even lingering effects past employment discrimination may also affect mortality differential study life expectancy showed men expect live years age divorced married expect reach years age difference years record indicates however department funded plan equal contributions male female employees death benefit unlike pension benefit less value persons longer life expectancies department concept fairness neutral funding death benefits unfair women class variation department fairness theme suggestion pension plan violate title vii disproportionately heavy impact male employees cf griggs duke power suggestion force sex discrimination context retiree total pension benefits ultimately determined actual life span differential benefits paid men women aggregate thus based factor sex consequently immune challenge equal pay act cf infra even title vii assuming analysis applies fringe benefits cf nashville gas satty male employees prevail even completely neutral practice inevitably disproportionate impact one group another griggs imply never held discrimination must always inferred consequences developments law supra see also sprogis air lines stevens dissenting bennett amendment became part provides part shall unlawful employment practice title employer differentiate upon basis sex determining amount wages compensation paid paid employees employer differentiation authorized provisions section fair labor standards act amended stat equal pay act provides part employer employees subject provisions section shall discriminate within establishment employees employed employees basis sex paying wages employees establishment rate less rate pays wages employees opposite sex establishment equal work jobs performance requires equal skill effort responsibility performed similar working conditions except payment made pursuant seniority system ii merit system iii system measures earnings quantity quality production iv differential based factor sex provided employer paying wage rate differential violation subsection shall order comply provisions subsection reduce wage rate employee stat need decide whether retirement benefits contributions benefit plans wages act bennett amendment extends act four exceptions forms compensation covered title vii see supra department pension benefits contributions maintain compensation title vii cf peters cert denied department argument specious contribution schedule distinguished imperfectly employees distinguishing precisely male female employees contrast entirely system contributions benefits result differing retirement benefits precisely based longevity retirees long lives always receive money comparable employees short lives plan also distinguish crude way male female pensioners difference average life spans sort disparity explicitly differential equal pay act intended authorize randolph president wish ask senator minnesota humphrey effective manager pending bill clarifying question provisions title vii mind social security system certain respects treats men women differently example widows benefits paid automatically widower qualifies disabled actually supported deceased wife also wife retired employee entitled social security receives additional old age benefit husband employee differences treatment recall long standing correct ask senator minnesota assuming similar differences treatment industrial benefit plans including earlier retirement options women may continue operation bill becomes law humphrey yes point made unmistakably clear earlier today adoption bennett amendment doubt cong rec administrative constructions provision look two directions wage hour administrator charged enforcing equal pay act never expressly approved different employee contribution rates said either equal employer contributions equal benefits satisfy act cfr time stated wage differential based differences average costs employing men women based factor sex cfr administrator reasons second ruling illuminating group employees solely basis sex purposes comparison costs necessarily rests assumption sex factor alone may justify wage differential assumption plainly contrary terms purpose equal pay act wage differentials based serve perpetuate promote discrimination act directed grouping sex employees cost data relates group cost experience necessarily assessed individual one sex without regard whether costs employer less employ individual particular individual opposite sex similar working conditions jobs requiring equal skill effort responsibility ibid extent conflict find reasoning power persuade ipse dixit cf skidmore swift quoting geduldig opinion stated case thus far cry cases like reed reed frontiero richardson involving discrimination based upon gender california insurance program exclude anyone benefit eligibility gender merely removes one physical condition pregnancy list compensable disabilities quotation added quoted language geduldig leaves doubt reason rejecting appellee equal protection claim case exclusion pregnancy coverage california plan discrimination based sex see recently noted nashville gas satty gilbert holding depend evidence rather holding rested plaintiff failure prove either facial discrimination discriminatory effect amici suggest department discrimination justified business necessity argue gender distinction drawn many male employees withdraw plan even department get better pension plan private market department long required equal contributions plan see supra since required equal contributions pension plan yet department points adverse selection affected employees presumably employee wants leave plan must also leave job workers quit one fringe benefits theoretically obtained marginally lower price open market short showing sex distinctions reasonably necessary normal operation department retirement plan see act proof cost differences justifies otherwise illegal price discrimination negate existence discrimination see ftc morton salt even contribution differential based sound business practice nevertheless discriminatory defendant forced assert affirmative defense escape liability defenses title vii equal pay act considerably narrower see supra broad defense proposed rejected equal pay act became law representative findley offered amendment equal pay act expressly authorized wage differential tied ascertainable specific added cost resulting employment opposite sex cong rec pointed employment women might costly matters higher turnover state laws restricting women hours equal pay act supporters responded cost differences handled focusing factors sex actually caused differences absenteeism number hours worked amendment rejected largely redundant reason senate report hand seem assume statute may recognize limited cost defense based elements employment costs men women difficult find language statute supporting even limited defense event defense based total cost employing men women attempted case title vii equal pay act primarily govern relations employees employer employees third parties suggest course employer avoid responsibilities delegating discriminatory programs corporate shells title vii applies agent covered employer supp equal pay act applies person acting directly indirectly interest employer relation employee case example department deny administrative board agent successfully argued two inseparable shared city immunity suit title vii bans discrimination individual individual sex equal pay act prohibits discrimination within establishment discrimination defined paying wages employees rate less rate employer pays wages employees opposite sex equal work neither provisions makes unlawful determine funding requirements establishment benefit plan considering composition entire force specifically held defendant prejudiced reliance plaintiff initial waiver backpay claims absolved backpay liability district reserved question whether reliance different kind state protective laws requiring sex differentiation also save defendant liability according district defendant liability contributions begin april day equal employment opportunity commission issued interpretation casting doubt varieties pension fund discrimination see fed reg even assuming eeoc decision put defendants notice acting illegally date chosen district early taken account difficulty amending major pension plan task accomplished overnight moreover given conclusive weight eeoc guideline see general electric gilbert wage hour administrator whose rulings also provide defense sex discrimination cases refused follow eeoc see infra doubt district equitable sensitivity impact refund order raised decision award full difference contributions made male employees made female employees may give victims discrimination due undifferentiated actuarial table employed contributions women employees doubt lower low contributions actually made men period district least considered ordering refund difference contributions made women contributions made actuarially sound nondiscriminatory plan noted earlier supra position wage hour administrator somewhat confusing general rule rejected differences average cost defense specific rule lent support department view simply requiring employer equalize either contributions employee benefits compare cfr eeoc requires equal benefits see cfr two agencies responsibility equal opportunity employment adhere wage hour administrator position see cfr office federal contract compliance cfr dept health education welfare see also fed reg hew employer establishes pension plan charges discrimination reversed chooses money purchase formula women complain receive less per month employer insurance company quick point women group actually receive equal contributions made effect compound interest women employees still complain discrimination employer chooses defined benefit formula male employees allege discrimination contributes women group men group employer dilemma damned discrimination context matter note sex discrimination mortality tables rev footnotes omitted american council life insurance pension facts pp congress underlined importance making gradual prospective changes rules govern pension plans year congress passed bill regulating employee retirement programs employee retirement income security act stat bill paid careful attention problem retroactivity set wide variety effective dates different provisions new law rules fully effective decade law enacted see supp june june february eeoc issued guidelines disapproving differences male female retirement ages september year eeoc general counsel gave opinion retirement plans set gradual schedules complying guidelines judgment parties speedily comply carry considerable weight see chastang flynn emrich plaintiffs assert award case crippling defendants limited contributions base ruling facts case alone noted albemarle paper moody equitable remedies may flexible still must founded principle important national goals frustrated regime discretion produce different results breaches duty situations differentiated policy employers liable improper contributions made two years charge filed eeoc supp unusual cases remain within eeoc years charge filed see occidental life ins eeoc years months delay prelude time inevitably consumed civil litigation appeals plainly expected plan pay award noted imposing retroactive liability might leave plan somewhat making observation appeals suggested series possible solutions problem benefits retired workers lowered burden current employees increased department decide contribute enough offset plan unexpected loss ibid two commentators urging illegality pension plans noted danger staggering damage awards proposed one cure exercise judicial discretion refuse backpay award hardship work employer acted good faith bernstein williams title vii problem sex classifications pension programs colum rev justice blackmun concurring part concurring judgment justice stewart wrote opinion geduldig aiello joined opinion general electric gilbert justice white justice powell joined geduldig general electric justice stevens writes opinion present case dissented general electric justice marshall joins opinion large part joined dissent geduldig general electric discomfort latter case apparent believe separate concurrence ibid lineups surely without significance participation brothers stewart white powell today majority opinion sign decision case tension geduldig general electric indeed wholly consistent sure votes justice marshall justice stevens indicate quite contrary given decisions geduldig general electric one constitutional statutory present case easy one might thought decisions required conclude critical difference department pension payments based life expectancy nonstigmatizing factor demonstrably differentiates females males measurable individual basis might thought nothing arbitrary irrational discriminatory recognizing objective accepted see ante disparity life expectancies computing rates retirement plans moreover unrealistic attempt force individualized analysis upon basically insurance context unlike possibility example properly testing job applicants qualifications employment simply way determine advance particular employee die rationale course congress title vii civil rights act amended intended eliminate certain exceptions race color religion sex national origin factors upon employers may act program one challenged exacerbate gender consciousness program consideration general electric exactly thing yet upheld challenge distinction present case general electric permitted classes pregnant women nonpregnant persons female male ante seems easy probably distinction drawn serve distinguish case principled basis therefore must conclude today decision cuts back general electric inferentially geduldig reasoning adopted indeed makes recognition cases continuing precedent somewhat questionable say necessarily bad congress chosen title vii today assurance asserts feel however meet posture earlier cases head thin rationalization seeks distinguish fails quest therefore join part iv opinion concur judgment interest justice stevens dissent general electric strongly protested distinction must make accurate describe program dividing potential recipients two groups pregnant women nonpregnant persons classification persons face risk pregnancy chief justice burger justice rehnquist joins concurring part dissenting part join part iv opinion parts ii iii dissent actuarial tables use since least statistical validity repeatedly verified vast life insurance annuity pension plan industry based tables recognizes ante fact women class live longer men equally true employers know advance individual members classes die ante yet operate economically workable group pension programs rational permit rely statistically sound proved disparities longevity men women indeed seems irrational assume congress intended outlaw use fact whatever reasons combination reasons women class outlive men conclusion language civil rights statute clear admitting advertence legislative history soundly based effect upon pension plans revolutionary discriminatory time favorable women expense men read statute without either clear statement intent statute reliable indication legislative history congress purpose casual dismissal senator humphrey apparent assumption act little impact existing pension plans ante dismiss significant manifestation impact industrial benefit plans contemplated reasonably clear intention abrogate employer right narrow limited context treat women differently men face historical reliance mortality experience statistics cf ante reality differences human mortality mortality experience tables reflect difference added longevity women reasons women statistically outlive men clear categorizing people basis sex one acknowledged immutable difference men women take account unknown reasons whether biologically culturally based give women significantly greater life expectancy men therefore true says individual life expectancy based number factors sex one ante true seizing upon constant measurable factor others taken account factors whether known variable unknown elements automatically account actuarial disparity accounted constant factor used basis determining costs benefits group pension plan course petitioners discriminating pay men women cf general electric gilbert nashville gas satty practice petitioners however falls squarely exemption provided equal pay act incorporated title vii bennett amendment stat exemption tells us employer may discriminate employees basis sex paying one sex lesser compensation except payment made pursuant differential based factor sex factor sex longevity sex elements leading differences longevity grouped assimilated objective feature upon employer anyone else including insurance companies may reliably base cost differential risk insured sense failure treat women individuals violation statute holds treat individually possible face unknowable length individual life individually every woman statistical possibility outliving men essence basing decisions reliable statistics individual determinations infeasible impossible course women disqualified example heavy labor generality women thought strong men proposition perhaps may sometime statistically demonstrable remain individually refutable however impossible tailor program pension plan individual nothing prevent application reliable statistical facts individual facts disproved long planning funding operating program undertaken find anomalous contradictory opinion tells us effect ante holding really barrier responding complaints men employees group employers may give employees precisely dollar amount require secure annuities directly insurer course compulsion ignore years accumulated recorded longevity experience see moir sources characteristics principal mortality tables see nations demographic yearbook case course nothing discrimination race color religion national origin cf ante nn qualification bennett amendment permitted incorporation equal pay act pertained claims discrimination sex justice marshall concurring part dissenting part agree title vii civil rights act amended forbids petitioners practice requiring female employees make larger contributions pension fund male employees therefore join opinion except part iv also agree statement part iv title vii violation found albemarle paper moody establishes presumption favor retroactive liability presumption seldom overcome ante agree presumption deemed overcome case especially since relief granted district exercise discretion upheld appeals affirm decision therefore join part iv opinion judgment albemarle paper moody supra made clear subject presumption favor retroactive relief district retains traditional equitable discretion locate result appellate review limited determining whether district clearly erroneous factual findings whether abused discretion see also fed rule civ proc district findings shall set aside unless clearly erroneous zenith radio hazeltine research assert findings district clearly erroneous conclude abuse discretion instead merely district gave insufficient attention certain factors striking equitable balance ante first factor mentioned relates complexity issue presented may led pension fund administrators assume program like department entirely lawful alternative equal contributions perhaps unlawful perceived unfair ness men ante district found however petitioners placed notice illegality requiring larger contributions women april equal employment opportunity commission amended regulations make illegality clear retroactive relief ordered district ran april december date petitioners changed equal contribution program see ante even april beginning date early contends ante nearly period involved surely point conscientious intelligent administrators ante responded eeoc guidelines yet today denies retroactive relief without even knowing whether petitioners made efforts ascertain particular plan legality major factor relied involves potential impact economy might result retroactive changes rules applying pension insurance funds according changes jeopardiz insurer solvency ultimately insureds benefits ante first factor however little reference made situation case claim made either petitioners relief granted way threatened plan solvency indeed risks nature foresee thus included calculation liability reflected rates contributions charged ibid one suggested moreover relatively modest award issue involving small percentage amounts withheld respondents paychecks pension purposes period see way considered devastating ante devastating award made future case ample opportunity strike time necessarily speculative character analysis part iv underscored suggestion retroactive relief case led reduction benefits paid retirees increase contributions paid current employees ante taking award pension fund apparently contemplated courts ante district gave indication thought recovery come appeals listed number ultimate sources money involved including increased employer contributions fund one payment department indeed department contemplated money award come city revenues pet cert department thereby paying title vii award way pay ordinary backpay award arising discriminatory practices hence possibility harm falling innocent retirees employees ante largely chimerical thus several factors mentioned might important case appear provide little cause concern case presently us extent believes factors adequately considered award retroactive relief made moreover surely proper course remand district findings new equitable assessment appropriate remedy district found abused discretion denying backpay albemarle take upon formulate award remanded district purpose reason deny retroactive relief relevant legal considerations established task finding facts applying law facts best left district particularly equitable search result involved case however believe remand necessary district considered question petitioners charged knowledge state law see supra petitioners challenge particular date selected claim needed time adjust plan discussed moreover claim made department plan solvency threatened appears unlikely either retirees employees paid part award every indication short factors thinks might important hypothetical case concern petitioners pay award case today reaffirms force albemarle presumption favor retroactive relief ante yet fails give effect principal reason presumption exists albemarle emphasized central purpose title vii making persons whole injuries suffered past discrimination see respondents case made whole unless receive refund money illegally withheld paychecks petitioners claim funds compelling claim many backpay situations person discriminated receives payment period working appeals observed respondents actually earned amount question taken violation title vii view strength respondents restitution claim view statute central purpose albemarle affirm judgment appeals district quoted following eeoc regulations shall defense title vii charge sex discrimination benefits cost benefits greater respect one sex cfr supp cd cal see also cfr employer may discriminate men women regard fringe benefits also adopted apr employer pension plan may differentiat benefits basis sex adopted apr also contends respondents entitled refund full difference contributions made contributions made similarly situated men rather difference contributions contributions made actuarially sound nondiscriminatory plan ante point like question appropriate date discussed text raised petitioners event argue reduction retroactive relief awarded complete denial relief merits moreover district decision place women employees equal footing male surely unreasonable alternative suggested still left women higher pension payments similarly situated men relevant period respondents filed charge eeoc june petitioners put notice possibility retroactive relief awarded point know may acted ensure outcome litigation affect viability plan example escrowing amounts cover contingency losing respondents prudent pension plan administrator however certain legal position reasonably ignored contingency thus correct years litigation may ensue charge filed eeoc fact largely irrelevant concern major unforeseen contingencies award retroactive relief adversely affecting financial integrity pension plan ante hardly likely retroactive award period prior filing eeoc charge devastating plan since recognizes period case longer two years ante see supp instant case period award began run charge filed eeoc one year april june even liability period moreover involved small percentage contributions made women employees discussed text infra