Opinion of the Court
SUPREME COURT OF THE UNITED STATES
No. 17–1094
NUTRACEUTICAL CORPORATION, PETITIONER v. TROY LAMBERT
ON WRIT OF CERTIORARI TO THE UNITED STATES COURT OF APPEALS FOR THE NINTH CIRCUIT
[February 26, 2019]
Justice Sotomayor delivered the opinion of the Court.
To take an immediate appeal from a federal district court’s order granting or denying class certification, a party must first seek permission from the relevant court of appeals “within 14 days after the order is entered.” Fed. Rule Civ. Proc. 23(f). This case poses the question whether a court of appeals may forgive on equitable tolling grounds a failure to adhere to that deadline when the opposing party objects that the appeal was untimely. The applicable rules of procedure make clear that the answer is no.
I
In March 2013, respondent Troy Lambert sued petitioner Nutraceutical Corporation in federal court, alleging that its marketing of a dietary supplement ran afoul of California consumer-protection law. The District Court for the Central District of California initially permitted Lambert to litigate on behalf of a class of similarly situated consumers. On February 20, 2015, however, the District Court revisited that decision and ordered the class decertified. From that point, Lambert had 14 days to ask the Court of Appeals for the Ninth Circuit for permission to appeal the order. See Fed. Rule Civ. Proc. 23(f).
Instead of filing a petition for permission to appeal, Lambert informed the District Court at a status confer-
