The responsible parent may request an administrative hearing in writing within 30 days of the date of mailing of the notice described in Section 5. If the responsible parent delivers the request to the Division, it must be received within 30 days of the date of mailing of the notice. If the request is mailed, the postmark date on the envelope must be within 30 days of the date of mailing of the notice. A request for hearing is deemed timely if the 30th day after the date of mailing is a weekend, holiday or other non-business day for the Department and the request is received by the Division or postmarked on the next business day.
10- 144 C.M.R. ch. 351, § 8-6