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Dale, Charles V.

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Congressional Research Service ˜ The Library of CongressCRS Report for CongressReceived through the CRS WebOrder Code RS21836Updated April 12, 2005Disparate Impact Analysis and the AgeDiscrimination in Employment Act: theSupreme Court Decision in Smith v. City ofJacksonCharles V. DaleLegislative AttorneyAmerican Law DivisionSummaryThere are two basic methods for proving discrimination under federal equalemployment opportunity laws: disparate treatment and disparate impact.  The firstrequires proof that the employer intended to discriminate against the complainant whenit took the challenged employment action.  Disparate impact claims, however,  may  beestablished without proof of discriminatory intent, often a burdensome task fordiscrimination victims.  Instead, disparate impact derives from the theory thatemployment policies that appear neutral on their face may actually affect protectedgroups more harshly than an unprotected group.  The ultimate burden rests with theemployer to prove a “business necessity” for any such disparity.  Disparate impact  firstemerged as a mode for judicial analysis of race discrimination under Title VII of the1964 Civil Rights Act.  Three decades later, however, the federal circuits were dividedover its application to age discrimination cases.  The language of the Age Discriminationin Employment Act (ADEA) differs from Title VII in allowing employers to makedecisions on the basis of “reasonable factors other than age.”  The First, Fifth, Seventh,Tenth, and Eleventh Circuits had relied on this exception to deny ADEA disparateimpact claims.  The Second, Eighth, and Ninth Circuits  allowed them.  On March 30,2005, in Smith v. City of Jackson (No. 03-1160), the Supreme  Court resolved thiscircuit conflict by deciding 5 to 3 that the ADEA permits disparate impact claims.  But,the Court concluded,  the facts in Smith were inadequate to prove such a claim.        On March 30, 2005,  the U.S. Supreme Court  resolved a conflict among the federalcircuits as to whether  the  Age Discrimination in Employment Act (ADEA) prohibitsemployment policies or practices which, although facially neutral with respect to age,have a “disparate impact” on older workers. “Disparate impact” or “adverse impact”generally refers to “employment practices that are facially neutral in their treatment ofdifferent groups, but that in fact fall more harshly on one group than another and cannotCRS-21 Hazen Paper Co. v. Biggins, 507 U.S. 604 (1993).2 29 U.S.C. § 623(a)(1).3 Id. at § 623(A)(2).4 Id. at § 623(f)(1).5 29 U.S.C. § 206(d)(1).6 County of  Washington v. Gunther, 452 U.S.161 (1981). 7 401 U.S. 414 (1971).be justified by a business necessity.”1  In Smith v. City of Jackson,  police officers overthe age of 40 claimed that new wage scales adopted by the city police department, to makeentry level recruitment more competitive with other law enforcement agencies, violatedthe ADEA by giving proportionately smaller raises to senior officers.  A panel of the FifthCircuit joined the majority of federal circuits, holding that disparate impact claims are notcognizable under the ADEA.  While disagreeing with the conclusion that the disparateimpact theory of recovery is never available, the Supreme Court ruled that evidencepresented by the petitioners was inadequate to prove an ADEA claim.Legal Background.The ADEA prohibits age discrimination against any individual aged 40 or over inhiring or discharge, or with respect to “compensation, terms, conditions, or privileges ofemployment,”2 and also makes it unlawful to “limit, segregate, or classify” olderemployees so as to “adversely affect” their status because of age.3    In language andstructure, these proscriptions mirror Title VII, which imposes identical restrictions onemployers in regard to race, color, religion, sex, and national origin.  Fundamental to thepresent controversy, however, is an ADEA exception, not found in Title VII, whichallows employers “to take any action otherwise prohibited . . . where the differentiationis based on reasonable factors other than age.”4   The Equal Pay Act5 contains a nearlyidentical phrase — “any factor other than sex” — which has been interpreted to precludedisparate impact claims under that law.6  Two basic methods have judicially evolved for proving unlawful discrimination inemployment: disparate treatment and disparate impact.  The former  requires proof thatthe employer intended to discriminate against the complaining party when it took thechallenged employment action.  Intent,  the critical element of a disparate treatment claim,may be shown directly (e.g. by discriminatory statements or behavior of a supervisortowards a subordinate) or, perhaps more likely, by circumstantial evidence.  Disparateimpact claims, however,  may  be established without proof of discriminatory intent,relieving the victim of an often insurmountable burden.   Instead, disparate impact derivesfrom the theory that employment policies that appear neutral on their face may actuallyaffect protected groups more harshly than an unprotected group.  The ultimate burdenrests with the employer to prove a “business necessity” for any such disparity. “Disparate impact” is not mentioned in the text or legislative history ADEA, nor ofTitle VII as originally enacted, but is a creature of judicial interpretation. The conceptfirst emerged from the U.S. Supreme Court ruling in Griggs v. Duke Power Co.7  InGriggs, black workers argued that the employer’s use of a high school diplomaCRS-38 42 U.S.C. 2000e et seq.9 433 U.S. 321 (1977).10 Title VII as amended by the Civil Rights Act of 1991, 42 U.S.C. § 2000e-2(k)(1)(a), providesin pertinent part:An unlawful employment practice based on disparate impact is established under thissubchapter only if — (i) a complaining party demonstrates that a respondent uses a particular employmentpractice that causes a disparate impact on the basis of race, color, religion, sex, ornational origin and the respondent fails to demonstrate that the challenged practice isjob related for the position in question and consistent with business necessity; . . .11 Supra n. 1.12 Id at 610.13 Id. at 611.14 Id. at 618 (Kennedy, J. concurring).requirement and general intelligence tests for entry into laborer  positions violated TitleVII of the 1964 Civil Rights Act,8 because those requirements had an adverse impact onblacks and were not reasonably related to successful job performance.  Underlying Griggswas the Court’s determination that criteria unrelated to job performance not be allowedto “freeze” the effects of past discrimination or act as “built-in headwinds” to employmentprogress by previously segregated minority groups.  Analogous reasoning underlay theCourt’s approach to sex discrimination in Dothard  v. Rawlinson.9  Dothard invalidatedan Alabama policy requiring a minimum height and weight for prison guards, since thepolicy had a disparate impact on female applicants and the state had not shown acorrelation with job performance.  In 1991,  Congress  amended Title VII, though not theADEA, to codify the proscription on employment practices with disproportionate effectson protected classes which are unrelated to job performance or business necessity.10  In dictum to the Court’s opinion in  Hazen Paper Co. v. Biggins,11 a disparatetreatment ADEA case, Justice O’Connor wrote for a unanimous Court that Congresspassed the ADEA out of  “concern that older workers were being deprived of employmenton the basis of inaccurate and stigmatizing stereotypes.”12   Hence, she argued, the ADEAdoes not apply in instances where the employment decision is “wholly motivated byfactors other than age, . . .even if the motivating factor is correlated with age.”13  In hisconcurring opinion, Justice Kennedy cast further uncertainty on the disparate impacttheory by declaring that “nothing in the Court’s opinion should be read as incorporatingin the ADEA context the so-called ‘disparate impact’ theory. . . .14  The Supreme Courtexpressly reserved judgment on the question of “whether a disparate impact theory ofliability is available under the ADEA.”Prior to Hazen Paper, several courts ruled that the ADEA permitted disparate impactclaims, either because of the similarity of its substantive provisions with Title VII or aperceived commonality of language, structure, and purpose of the two laws.  With someCRS-415 District Council 37 v. New York City Dep’t of Parks and Recreation, 113 F.3d 347 (2d Cir.1997).16 Smith v. City of Des Moines, 99 F.3d 1466 (8th Cir. 1996).17 Mangold v. California Pub. Utilities Comm’n, 67 F.3d 1470 (9th Cir. 1995).18 Koger v. Reno, 98 F.3d 631, 639 (D.C. Cir. 1996).19 See Mullin v. Raytheon Co., 164 F.3d 696 (1st Cir. 1999); EEOC v. Francis W. Parker School,41 F.3d 1073 (7th Cir. 1994), cert. denied, 515 U.S. 1142 (1995); Ellis v. United Airlines, Inc.,73 F.3d 999 (1995), cert. denied, 517 U.S. 1245 (1996); Adams v. Florida Power Corp., 255 F.3d1322 (11th Cir. 2001), cert. gr., 534 U.S. 1054 (2001), writ dismissed as improvidently granted,535 U.S. 228 (2002).20 29 U.S.C. § 623(a)(2).qualifications, the Second,15 Eighth,16 and Ninth Circuit17  adhered to this position, basedon Pre-Hazen Paper case law and general textual similarities between the ADEA andTitle VII.  The D.C. Circuit had “assume[d] without deciding that disparate impactanalysis applies to age discrimination claims.”18  Five other Circuits — the First, Fifth,Seventh, Tenth, and Eleventh — adopted a contrary position.19  Generally, these courtsrelied upon the “reasonable factors” exception to the ADEA, and judicial treatment of itsEqual Pay Act corollary, as reason to distinguish Title VII and reject disparate impactclaims. In addition, the historical emphasis of the ADEA on combating stereotypes aboutage, especially the stigma of declining productivity, was also held to preclude itsapplication to employment decisions impacting older workers but motivated by factorsother than age.  Finally, these courts found support in the language of Hazen Paper forrefusing to recognize disparate impact ADEA claims.The Smith Ruling.In Smith, police officers and safety dispatchers sued the City of Jackson alleging thata performance pay plan awarded substantially larger salary increases to their colleaguesunder the age of 40.  Officers and dispatchers with five or fewer years of tenure receivedproportionately greater increases than those with more than five years.  For purposes ofa summary judgment motion, the district court assumed that employees with the leastseniority were under age 40, while those with more seniority were over age 40.Implementation of the age-neutral plan was alleged to be unlawful without a showing  ofintentional bias because it resulted in four standard deviations of pay difference in favorof the younger group of employees.  Separately, a disparate treatment claim, alleging thatthe City was motivated by age discrimination to adopt the pay plan, was permitted toproceed.  Both the district court and the U.S. Court of Appeals for the Fifth Circuit ruledagainst the employees.  The central issue on this appeal was whether the pay plan couldbe challenged due to its disparate impact.The Supreme Court narrowly held, 5 to 3, the Chief Justice not participating, that thedisparate impact method for proving age discrimination is available under the ADEA.  Aplurality led by Justice Stevens, joined by Justices Souter, Ginsburg, and Breyer seizedon statutory text stating that an employer may not take employment actions that“adversely affect” an employee’s status “because of such individual’s age.”20   Thisprovision was found to allow disparate impact claims  and was not overridden — asJustice O’Connor urged in her concurring opinion — by ADEA’s § 623(f) “safe harbor”CRS-521 See Wards Cove Packing Co. v. Atonio, 490 U.S. 642 (1989); Civil Rights Act of 1991,codified at 42 U.S.C. § 2000e-2(k).exception for employer  conduct based on “reasonable factors other than age.”(RFOA) InJustice O’Connor’s view, the RFOA provision “expresses Congress’ clear intention thatemployers not be subject to liability absent proof of intentional age-based discrimination.”On the other hand, Justice Stevens found actual support in  the RFOA for disparate impactrecovery, on the theory that the provision was largely redundant as applied  to intentionalage discrimination, which necessarily requires proof of age-related motivation.  Theplurality opinion further relied on textual similarities between Title VII and the ADEA,the contemporaneity of congressional consideration of the two statutes, and the fact thatthe Labor Department and the EEOC had adopted ADEA regulations expressly providingfor disparate impact analysis.  A fifth vote was provided by Justice Scalia who agreedwith much of Justice Stevens’ opinion, but who would have instead anchored the Court’sdecision on the principle of deference to agency rule-making.  “This is an absolutelyclassic case for deference to agency interpretation,” he wrote.As noted, however, while Smith allowed for disparate impact claims, the Courtunanimously ruled that the older workers in the case before them had failed to prove theirclaim.  Significantly for employers, the Court found that this type of claim under theADEA is narrower and thus easier to defend than it is under Title VII.  Under an earlierruling that made it more difficult to use disparate impact, which Congress later changedfor Title VII but not for the ADEA, older workers had to specifically identify the test,requirement, or practice that had the adverse impact.21  In Smith, Justice Stevens noted,the petitioners did little more than identify a pay plan that was less generous to olderworkers than to younger workers.  The failure to isolate and identify specific aspects ofthe policy responsible for statistical disparities, and the fact that the city’s plan was basedon reasonable factors other than age — that is, a need to make junior positions morefinancially competitive with comparable positions in the marketplace — proved fatal tothe older officers’ claim.  Justice Scalia joined the Stevens opinion on this point andJustice O’Connor concurred that if disparate impact is available, the petitioners had notshown it.Conclusion.Disparate treatment or  intent may be difficult to establish in ADEA cases since overtanimus based on age is not usually apparent.   Rarely are employers so imprudent as toannounce to employees that they are too old to be productive.  Rather, the issue typicallyarises when an employer relies on age-correlative factors — such as seniority, pensioneligibility and salary tied to longevity, or medicare eligibility — as the basis for decisionsadversely affecting older workers.  Disparate impact analysis permits the courts toexamine the effects of policies and practices to determine whether they are illegallydiscriminatory.  In Smith, the Court allowed older workers to file age discriminationclaims against their employers on the basis of disparate impact rather than discriminatoryintent.  As importantly, however,  the decision provided employers with legal weaponsto defend against such actions.  Under Smith, if the adverse impact of the employer’s decision is attributable to a“reasonable” non-age factor, there is no liability.  Unlike Title VII, the ADEA permitsCRS-6employment decisions that would otherwise be prohibited “where the differentiation isbased on reasonable factors other than age.”  Nor does the the ADEA, like Title VII,require employers to demonstrate business necessity.  Thus, even if the plaintiffdemonstrates that a particular employment policy or practice adversely  affects olderworkers, the employer — as in Smith —  may readily defend the action by showing  thatthe practice is based on a “reasonable” non-age factor.  So while the Smith ruling maylead to an increase in age discrimination lawsuits, the outlook for success by olderworkers remains uncertain. Employers will likely be able to avoid liability — and eventrial through summary judgment — provided only that the policies they adopt are foundedon factors other than age and are not unreasonable.     

Disparate Impact Analysis and the Age Discrimination in Employment Act: the Supreme Court Decision in Smith v. City of Jackson

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Federal Publications Key Workplace Documents 
4-12-2005 
Disparate Impact Analysis and the Age Discrimination in 
Employment Act: the Supreme Court Decision in Smith v. City of 
Jackson 
Charles V. Dale 
Congressional Research Service 
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Disparate Impact Analysis and the Age Discrimination in Employment Act: the 
Supreme Court Decision in Smith v. City of Jackson 
Keywords 
Disparate, impact, discrimination, age, employ, act, law, U.S., court, ADEA, Title VII 
Disciplines 
Labor and Employment Law 
This article is available at DigitalCommons@ILR: https://digitalcommons.ilr.cornell.edu/key_workplace/182 
Congressional Research Service ˜ The Library of Congress
CRS Report for Congress
Received through the CRS Web
Order Code RS21836
Updated April 12, 2005
Disparate Impact Analysis and the Age
Discrimination in Employment Act: the
Supreme Court Decision in Smith v. City of
Jackson
Charles V. Dale
Legislative Attorney
American Law Division
Summary
There are two basic methods for proving discrimination under federal equal
employment opportunity laws: disparate treatment and disparate impact.  The first
requires proof that the employer intended to discriminate against the complainant when
it took the challenged employment action.  Disparate impact claims, however,  may  be
established without proof of discriminatory intent, often a burdensome task for
discrimination victims.  Instead, disparate impact derives from the theory that
employment policies that appear neutral on their face may actually affect protected
groups more harshly than an unprotected group.  The ultimate burden rests with the
employer to prove a “business necessity” for any such disparity.  Disparate impact  first
emerged as a mode for judicial analysis of race discrimination under Title VII of the
1964 Civil Rights Act.  Three decades later, however, the federal circuits were divided
over its application to age discrimination cases.  The language of the Age Discrimination
in Employment Act (ADEA) differs from Title VII in allowing employers to make
decisions on the basis of “reasonable factors other than age.”  The First, Fifth, Seventh,
Tenth, and Eleventh Circuits had relied on this exception to deny ADEA disparate
impact claims.  The Second, Eighth, and Ninth Circuits  allowed them.  On March 30,
2005, in Smith v. City of Jackson (No. 03-1160), the Supreme  Court resolved this
circuit conflict by deciding 5 to 3 that the ADEA permits disparate impact claims.  But,
the Court concluded,  the facts in Smith were inadequate to prove such a claim.        
On March 30, 2005,  the U.S. Supreme Court  resolved a conflict among the federal
circuits as to whether  the  Age Discrimination in Employment Act (ADEA) prohibits
employment policies or practices which, although facially neutral with respect to age,
have a “disparate impact” on older workers. “Disparate impact” or “adverse impact”
generally refers to “employment practices that are facially neutral in their treatment of
different groups, but that in fact fall more harshly on one group than another and cannot
CRS-2
1
 Hazen Paper Co. v. Biggins, 507 U.S. 604 (1993).
2
 29 U.S.C. § 623(a)(1).
3
 Id. at § 623(A)(2).
4
 Id. at § 623(f)(1).
5
 29 U.S.C. § 206(d)(1).
6
 County of  Washington v. Gunther, 452 U.S.161 (1981). 
7
 401 U.S. 414 (1971).
be justified by a business necessity.”1  In Smith v. City of Jackson,  police officers over
the age of 40 claimed that new wage scales adopted by the city police department, to make
entry level recruitment more competitive with other law enforcement agencies, violated
the ADEA by giving proportionately smaller raises to senior officers.  A panel of the Fifth
Circuit joined the majority of federal circuits, holding that disparate impact claims are not
cognizable under the ADEA.  While disagreeing with the conclusion that the disparate
impact theory of recovery is never available, the Supreme Court ruled that evidence
presented by the petitioners was inadequate to prove an ADEA claim.
Legal Background.
The ADEA prohibits age discrimination against any individual aged 40 or over in
hiring or discharge, or with respect to “compensation, terms, conditions, or privileges of
employment,”2 and also makes it unlawful to “limit, segregate, or classify” older
employees so as to “adversely affect” their status because of age.3    In language and
structure, these proscriptions mirror Title VII, which imposes identical restrictions on
employers in regard to race, color, religion, sex, and national origin.  Fundamental to the
present controversy, however, is an ADEA exception, not found in Title VII, which
allows employers “to take any action otherwise prohibited . . . where the differentiation
is based on reasonable factors other than age.”4   The Equal Pay Act5 contains a nearly
identical phrase — “any factor other than sex” — which has been interpreted to preclude
disparate impact claims under that law.6  
Two basic methods have judicially evolved for proving unlawful discrimination in
employment: disparate treatment and disparate impact.  The former  requires proof that
the employer intended to discriminate against the complaining party when it took the
challenged employment action.  Intent,  the critical element of a disparate treatment claim,
may be shown directly (e.g. by discriminatory statements or behavior of a supervisor
towards a subordinate) or, perhaps more likely, by circumstantial evidence.  Disparate
impact claims, however,  may  be established without proof of discriminatory intent,
relieving the victim of an often insurmountable burden.   Instead, disparate impact derives
from the theory that employment policies that appear neutral on their face may actually
affect protected groups more harshly than an unprotected group.  The ultimate burden
rests with the employer to prove a “business necessity” for any such disparity.
 “Disparate impact” is not mentioned in the text or legislative history ADEA, nor of
Title VII as originally enacted, but is a creature of judicial interpretation. The concept
first emerged from the U.S. Supreme Court ruling in Griggs v. Duke Power Co.7  In
Griggs, black workers argued that the employer’s use of a high school diploma
CRS-3
8
 42 U.S.C. 2000e et seq.
9
 433 U.S. 321 (1977).
10
 Title VII as amended by the Civil Rights Act of 1991, 42 U.S.C. § 2000e-2(k)(1)(a), provides
in pertinent part:
An unlawful employment practice based on disparate impact is established under this
subchapter only if — 
(i) a complaining party demonstrates that a respondent uses a particular employment
practice that causes a disparate impact on the basis of race, color, religion, sex, or
national origin and the respondent fails to demonstrate that the challenged practice is
job related for the position in question and consistent with business necessity; . . .
11
 Supra n. 1.
12
 Id at 610.
13
 Id. at 611.
14
 Id. at 618 (Kennedy, J. concurring).
requirement and general intelligence tests for entry into laborer  positions violated Title
VII of the 1964 Civil Rights Act,8 because those requirements had an adverse impact on
blacks and were not reasonably related to successful job performance.  Underlying Griggs
was the Court’s determination that criteria unrelated to job performance not be allowed
to “freeze” the effects of past discrimination or act as “built-in headwinds” to employment
progress by previously segregated minority groups.  Analogous reasoning underlay the
Court’s approach to sex discrimination in Dothard  v. Rawlinson.9  Dothard invalidated
an Alabama policy requiring a minimum height and weight for prison guards, since the
policy had a disparate impact on female applicants and the state had not shown a
correlation with job performance.  In 1991,  Congress  amended Title VII, though not the
ADEA, to codify the proscription on employment practices with disproportionate effects
on protected classes which are unrelated to job performance or business necessity.10  
In dictum to the Court’s opinion in  Hazen Paper Co. v. Biggins,11 a disparate
treatment ADEA case, Justice O’Connor wrote for a unanimous Court that Congress
passed the ADEA out of  “concern that older workers were being deprived of employment
on the basis of inaccurate and stigmatizing stereotypes.”12   Hence, she argued, the ADEA
does not apply in instances where the employment decision is “wholly motivated by
factors other than age, . . .even if the motivating factor is correlated with age.”13  In his
concurring opinion, Justice Kennedy cast further uncertainty on the disparate impact
theory by declaring that “nothing in the Court’s opinion should be read as incorporating
in the ADEA context the so-called ‘disparate impact’ theory. . . .14  The Supreme Court
expressly reserved judgment on the question of “whether a disparate impact theory of
liability is available under the ADEA.”
Prior to Hazen Paper, several courts ruled that the ADEA permitted disparate impact
claims, either because of the similarity of its substantive provisions with Title VII or a
perceived commonality of language, structure, and purpose of the two laws.  With some
CRS-4
15
 District Council 37 v. New York City Dep’t of Parks and Recreation, 113 F.3d 347 (2d Cir.
1997).
16
 Smith v. City of Des Moines, 99 F.3d 1466 (8th Cir. 1996).
17
 Mangold v. California Pub. Utilities Comm’n, 67 F.3d 1470 (9th Cir. 1995).
18
 Koger v. Reno, 98 F.3d 631, 639 (D.C. Cir. 1996).
19
 See Mullin v. Raytheon Co., 164 F.3d 696 (1st Cir. 1999); EEOC v. Francis W. Parker School,
41 F.3d 1073 (7th Cir. 1994), cert. denied, 515 U.S. 1142 (1995); Ellis v. United Airlines, Inc.,
73 F.3d 999 (1995), cert. denied, 517 U.S. 1245 (1996); Adams v. Florida Power Corp., 255 F.3d
1322 (11th Cir. 2001), cert. gr., 534 U.S. 1054 (2001), writ dismissed as improvidently granted,
535 U.S. 228 (2002).
20
 29 U.S.C. § 623(a)(2).
qualifications, the Second,15 Eighth,16 and Ninth Circuit17  adhered to this position, based
on Pre-Hazen Paper case law and general textual similarities between the ADEA and
Title VII.  The D.C. Circuit had “assume[d] without deciding that disparate impact
analysis applies to age discrimination claims.”18  Five other Circuits — the First, Fifth,
Seventh, Tenth, and Eleventh — adopted a contrary position.19  Generally, these courts
relied upon the “reasonable factors” exception to the ADEA, and judicial treatment of its
Equal Pay Act corollary, as reason to distinguish Title VII and reject disparate impact
claims. In addition, the historical emphasis of the ADEA on combating stereotypes about
age, especially the stigma of declining productivity, was also held to preclude its
application to employment decisions impacting older workers but motivated by factors
other than age.  Finally, these courts found support in the language of Hazen Paper for
refusing to recognize disparate impact ADEA claims.
The Smith Ruling.
In Smith, police officers and safety dispatchers sued the City of Jackson alleging that
a performance pay plan awarded substantially larger salary increases to their colleagues
under the age of 40.  Officers and dispatchers with five or fewer years of tenure received
proportionately greater increases than those with more than five years.  For purposes of
a summary judgment motion, the district court assumed that employees with the least
seniority were under age 40, while those with more seniority were over age 40.
Implementation of the age-neutral plan was alleged to be unlawful without a showing  of
intentional bias because it resulted in four standard deviations of pay difference in favor
of the younger group of employees.  Separately, a disparate treatment claim, alleging that
the City was motivated by age discrimination to adopt the pay plan, was permitted to
proceed.  Both the district court and the U.S. Court of Appeals for the Fifth Circuit ruled
against the employees.  The central issue on this appeal was whether the pay plan could
be challenged due to its disparate impact.
The Supreme Court narrowly held, 5 to 3, the Chief Justice not participating, that the
disparate impact method for proving age discrimination is available under the ADEA.  A
plurality led by Justice Stevens, joined by Justices Souter, Ginsburg, and Breyer seized
on statutory text stating that an employer may not take employment actions that
“adversely affect” an employee’s status “because of such individual’s age.”20   This
provision was found to allow disparate impact claims  and was not overridden — as
Justice O’Connor urged in her concurring opinion — by ADEA’s § 623(f) “safe harbor”
CRS-5
21
 See Wards Cove Packing Co. v. Atonio, 490 U.S. 642 (1989); Civil Rights Act of 1991,
codified at 42 U.S.C. § 2000e-2(k).
exception for employer  conduct based on “reasonable factors other than age.”(RFOA) In
Justice O’Connor’s view, the RFOA provision “expresses Congress’ clear intention that
employers not be subject to liability absent proof of intentional age-based discrimination.”
On the other hand, Justice Stevens found actual support in  the RFOA for disparate impact
recovery, on the theory that the provision was largely redundant as applied  to intentional
age discrimination, which necessarily requires proof of age-related motivation.  The
plurality opinion further relied on textual similarities between Title VII and the ADEA,
the contemporaneity of congressional consideration of the two statutes, and the fact that
the Labor Department and the EEOC had adopted ADEA regulations expressly providing
for disparate impact analysis.  A fifth vote was provided by Justice Scalia who agreed
with much of Justice Stevens’ opinion, but who would have instead anchored the Court’s
decision on the principle of deference to agency rule-making.  “This is an absolutely
classic case for deference to agency interpretation,” he wrote.
As noted, however, while Smith allowed for disparate impact claims, the Court
unanimously ruled that the older workers in the case before them had failed to prove their
claim.  Significantly for employers, the Court found that this type of claim under the
ADEA is narrower and thus easier to defend than it is under Title VII.  Under an earlier
ruling that made it more difficult to use disparate impact, which Congress later changed
for Title VII but not for the ADEA, older workers had to specifically identify the test,
requirement, or practice that had the adverse impact.21  In Smith, Justice Stevens noted,
the petitioners did little more than identify a pay plan that was less generous to older
workers than to younger workers.  The failure to isolate and identify specific aspects of
the policy responsible for statistical disparities, and the fact that the city’s plan was based
on reasonable factors other than age — that is, a need to make junior positions more
financially competitive with comparable positions in the marketplace — proved fatal to
the older officers’ claim.  Justice Scalia joined the Stevens opinion on this point and
Justice O’Connor concurred that if disparate impact is available, the petitioners had not
shown it.
Conclusion.
Disparate treatment or  intent may be difficult to establish in ADEA cases since overt
animus based on age is not usually apparent.   Rarely are employers so imprudent as to
announce to employees that they are too old to be productive.  Rather, the issue typically
arises when an employer relies on age-correlative factors — such as seniority, pension
eligibility and salary tied to longevity, or medicare eligibility — as the basis for decisions
adversely affecting older workers.  Disparate impact analysis permits the courts to
examine the effects of policies and practices to determine whether they are illegally
discriminatory.  In Smith, the Court allowed older workers to file age discrimination
claims against their employers on the basis of disparate impact rather than discriminatory
intent.  As importantly, however,  the decision provided employers with legal weapons
to defend against such actions.  
Under Smith, if the adverse impact of the employer’s decision is attributable to a
“reasonable” non-age factor, there is no liability.  Unlike Title VII, the ADEA permits
CRS-6
employment decisions that would otherwise be prohibited “where the differentiation is
based on reasonable factors other than age.”  Nor does the the ADEA, like Title VII,
require employers to demonstrate business necessity.  Thus, even if the plaintiff
demonstrates that a particular employment policy or practice adversely  affects older
workers, the employer — as in Smith —  may readily defend the action by showing  that
the practice is based on a “reasonable” non-age factor.  So while the Smith ruling may
lead to an increase in age discrimination lawsuits, the outlook for success by older
workers remains uncertain. Employers will likely be able to avoid liability — and even
trial through summary judgment — provided only that the policies they adopt are founded
on factors other than age and are not unreasonable.     


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Disparate Impact Analysis and the Age Discrimination in Employment Act: the Supreme Court Decision in Smith v. City of Jackson

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