Single Judge Application; § 5110; equitable tolling; On June 17, 2021, the Federal Circuit issued Arellano, which declined to revisit the rule that “equitable tolling is inapplicable to § 5110’s effective date rules.” Arellano v. McDonough, __ F.3d. , , 2021 WL 2460647at *18 (Fed. Cir. June 17, 2021) (6-6 decision) (Chen, J, concurring) (referencing Andrews v. Principi, 351 F.3d 1134, 1137-38 (Fed. Cir. 2003));