The Third Circuit Goes Its Own Way on ADEA Disparate Impact Claims
The Age Discrimination in Employment Act (ADEA) protects from discrimination of employees who are at least 40 years of age. Recently, in Karlo v. Pittsburgh Glass Works, the United States Court of Appeals for the Third Circuit departed company with three of its sister Circuits by holding that plaintiffs asserting a claim of “disparate impact” under the ADEA may establish a disparate impact with comparisons between subgroups of employees and need not show that a challenged employment practice has had an adverse impact on employees 40 years of age or older compared to its impact on employees under 40. Thus, the Court permitted to go forward with a disparate impact claim based on a comparison between employees at least 50 years of age with employees under 50. The decision will have a profound impact on employers’ assessments of their potential ADEA liability for disparate impact claims and on the way ADEA disparate impact claims are litigated in the Third Circuit. Background To establish a claim of disparate impact discrimination under the ADEA, a plaintiff must show, through statistical evidence, that the employers implemented a facially age-neutral employment practice that fell more harshly on the protected group. If this showing is made, the employer can defeat the claim by demonstrating that the practice in question is...