29 CFR §38.77

1. (a)The Director may extend the 30-day time limit for filing a complaint:
   1. (1)If a recipient does not include in its Notice of Final Action the required notice about the complainant's right to file with the Director, as described in § 38.72(b)(5); or
   2. (2)For other good cause shown.
2. (b)The complainant has the burden of proving to the Director that the time limit should be extended.