410.130—Periods of limitation ending on nonworkdays.
Where any provision of part B of title IV of the Act, or any provision of another law of the United States, relating to or changing the effect of part B, or any regulation of the Commissioner issued under part B, provides for a period within which an act is required to be done which affects eligibility for or the amount of any benefit or payment under this part or is necessary to establish or protect any right under this part, and such period ends on a Saturday, Sunday, or Federal legal holiday, or on any other day all or part of which is declared to be a nonworkday for Federal employees by statute or Executive order, then such act shall be considered as done within such period if it is done on the first day thereafter which is not a Saturday, Sunday, or legal holiday, or any other day all or part of which is declared to be a nonworkday for Federal employees either by statute or Executive order. For purposes of this section, the day on which a period ends shall include the final day of the extended period where such extension is authorized by law or by the Commissioner pursuant to law. Such extension of any period of limitation does not apply to periods during which benefits may be paid for months prior to the month a claim for such benefits is filed (see § 410.226 ).