The United States or its officer or agency or a state may file an amicus brief without the consent of the parties or leave of court. Any other amicus curiae may file a brief only by leave of court.
The content requirements for a brief at the petition for rehearing stage are the same as those at the merits stage of the case. An amicus brief at the petition for rehearing stage may not exceed 2,600 words. The filing of a paper copy of the amicus brief is not required at the petition for rehearing stage. Loc. R. 29.
An amicus curiae supporting a petition for rehearing or rehearing en banc or supporting neither party must file its brief, accompanied by a motion for filing when necessary, no later than 7 days after the petition is filed. An amicus curiae opposing the petition must file its brief, accompanied by a motion for filing when necessary, no later than the date set by the court for the response.
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