If a court of appeals determines that an appeal is frivolous, it may, after a separately filed motion or notice from the court and reasonable opportunity to respond, award just damages and single or double costs to the appellee. US Supreme Court // © December 1, 2023 (As amended Apr. 29, 1994, eff. Dec. 1, 1994; Apr. 24, 1998, eff. Dec. 1, 1998.)