40 CFR § 23.12 - Filing notice of judicial review.
(a) For the purposes of 28 U.S.C. 2112(a), a copy of any petition filed in any United States Court of Appeals challenging a final action of the Administrator shall be sent by certified mail, return receipt requested, or by personal delivery to the General Counsel. The petition copy shall be time-stamped by the Clerk of the Court when the original is filed with the Court. The petition should be addressed to: Correspondence Control Unit, Office of General Counsel (2311), U.S. Environmental Protection Agency, 1200 Pennsylvania Ave., NW., Washington, DC 20460.
(b) If the General Counsel receives two or more petitions filed in two or more United States Courts of Appeals for review of any Agency action within ten days of the effective date of that action for purposes of judicial review (as specified under §§ 23.2 through 23.10 of this part), the General Counsel will notify the United States Judicial Panel of Multidistrict Litigation of any petitions that were received within the ten day period, in accordance with the applicable rules of the Panel.
(c) For purposes of determining whether a petition for review has been received within the ten day period under paragraph (b) of this section, the petition shall be considered received on the date of service, if served personally. If service is accomplished by mail, the date of receipt shall be considered to be the date noted on the return receipt card.