(a) In computing any period of time prescribed by the regulations in this part, refer to Sec. 26.16(a) of this title.
(b) Extensions of any of the time periods set out in these regulations may be granted by the Secretary or, as appropriate, by a State Administrative Agency, upon a showing of good cause by the party governed by the time period. [42 FR 2580, Jan. 12, 1977, as amended at 61 FR 10859, Mar. 15, 1996]