5th Cir. R. 21 — Writs of Mandamus and Prohibition, and Other Extraordinary Writs: the court's own rule, verbatim from RULES and INTERNAL OPERATING PROCEDURES OF THE UNITED STATES COURT OF APPEALS FOR THE FIFTH CIRCUIT (December 2025), official PDF, sha-custodied. Court-level requirement: applies to appeals in the U.S. Court of Appeals for the Fifth Circuit alongside the Federal Rules of Appellate Procedure.
Petition for Writ. The petition must contain a certificate of interested persons as described in 5TH CIR. R. 28.2.1. The certificate of interested persons and the items required by 5TH CIR. R. 21 do not count toward the page limit. In addition to the items required by FED. R. APP. P. 21, the application must contain a copy of any memoranda or briefs filed in the district court supporting the application to that court for relief and any memoranda or briefs filed in opposition, as well as a transcript of any reasons the district court gave for its action.
Petition for Writ. The petition must contain a certificate of interested persons as described in 5TH CIR. R. 28.2.1. The certificate of interested persons and the items required by 5TH CIR. R. 21 do not count toward the page limit. In addition to the items required by FED. R. APP