Section 1.03 - Time Limits(1) Communications to the Commission concerning an appeal shall be considered filed on the date on which the appeal is actually received by the central administrative office in Boston. All communications from the Commission, including correspondence about the appeals process shall be considered to be filed on the date on which they are deposited in the United States mail, properly addressed, postage prepaid, or delivered in person.(2) Computation of any period of time referred to in 112 CMR 1.00 shall begin on the first day following the day on which the client receives the notice. If the last day of the period is a day on which the office or offices of the Commission are closed, the period shall run until the end of the next following business day. The offices of the Commission are closed on Saturdays, Sundays and legal holidays.(3) The administrative review officer may extend time limits applicable to the administrative review.