950 C.M.R. 31.03
(1) Initial Pleading.
(b) Every initial pleading, as far as possible, shall contain the following:
(2) Answer. Any party may file with the agency an answer to an initialpleading within 14 days after service ofthe document to which the answer is directed. All allegations contained in said initial pleading which are not specifically admitted are deemed denied. All new matters contained in said answer shall be deemed denied. The answer shall contain but not be limited to the following:
(5) Withdrawal of Pleadings. A party desiring to withdraw a pleading filed with an agency shall file a motion for withdrawal, in accordance with 950 CMR 31.03(6). If any party has an objection thereto, he shall within ten days after receipt of said motion, file a statement with the agency setting forth the reasons for his objection and serve a copy of same, in accordance with 950 CMR 31.04 of each party. An objecting party may, as of right, have a hearing on the motion to withdraw if, at the time of filing, he so requests. In the absence of objections or a request for hearing, the motion of withdrawal shall, within 30 after the filing thereof, be deemed allowed, unless otherwise ordered; provided, however, that this paragraph shall not be construed as effecting withdrawal of the following, unless all parties thereto including the agency so agree: