Common employment practices such as campus recruiting and experience caps would be exposed to extensive litigation if job applicants are allowed to hold employers liable for age discrimination, a management-side lawyer argued Thursday in a federal appeals court.

The U.S. Court of Appeals for the Seventh Circuit, sitting en banc, is weighing the scope of the federal Age Discrimination in Employment Act. A three-judge panel in April said the challenger, Dale Kleber, could sue CareFusion Corp. for denying him an in-house lawyer position.