2429.22—Additional time after service by mail or commercial delivery.
Except as to the filing of an application for review of a Regional Director's Decision and Order under § 2422.31 of this subchapter, and subject to the rules set forth in § 2425.2 of this subchapter, whenever a party has the right or is required to do some act pursuant to this subchapter within a prescribed period after service of a notice or other paper upon such party, and the notice or paper is served on such party by mail or commercial delivery, 5 days shall be added to the prescribed period: Provided, however, that 5 days shall not be added in any instance where an extension of time has been granted.