When an ERISA plan delegates authority to the plan administrator to interpret the plan documents for benefit determinations, the plan administrator typically is entitled to a deferential standard of judicial review, and courts will look for abuse of discretion rather than impose a de novo standard of review. In Lyn M. v. Premera Blue Cross, – F.3d –, 2020 WL 4249129 (10th Cir. Jul 24, 2020), the U.S. Court of Appeals for the Tenth Circuit limited the deferential standard of review, holding that a de novo review applied when the plan administrator did not adequately disclose to the plan participants the instrument delegating discretionary authority to the plan administrator.