2002 U.S. Code
Title 28 - JUDICIARY AND JUDICIAL PROCEDURE
TITLE 28 - APPENDIX
RULES OF THE SUPREME COURT OF THE UNITED STATES
Rule 42 - Interest and Damages

1. If a judgment for money in a civil case is affirmed, any interest allowed by law is payable from the date the judgment under review was entered. If a judgment is modified or reversed with a direction that a judgment for money be entered below, the mandate will contain instructions with respect to the allowance of interest. Interest in cases arising in a state court is allowed at the same rate that similar judgments bear interest in the courts of the State in which judgment is directed to be entered. Interest in cases arising in a court of the United States is allowed at the interest rate authorized by law.

2. When a petition for a writ of certiorari, an appeal, or an application for other relief is frivolous, the Court may award the respondent or appellee just damages, and single or double costs under Rule 43. Damages or costs may be awarded against the petitioner, appellant, or applicant, against the party's counsel, or against both party and counsel.