25 CFR § 83.8
May the deadlines in this part be extended?
February 24, 2021
(a) The AS-IA may extend any of the deadlines in this part upon a finding of good cause.
(b) For deadlines applicable to the Department, AS-IA may extend the deadlines upon the consent of the petitioner.
(c) If AS-IA grants a time extension, it will notify the petitioner and those listed in §83.22(d).