Section 629-4-4 - CommunicationsA.Filings. In filing papers with the Board as required or permitted by applicable statute, these rules, or an order of the Board, such papers will be deemed to be officially filed or received only when received at the Agency during the hours that it is open. All written communications or documents related to a proceeding pending before the Board shall be addressed to the Board, except where submitted in response to a request from a member of the staff or as otherwise requested by the Board. The acceptance of any document for filing does not constitute a determination that the contents of the document are sufficient for the purpose for which it is filed.B.Service. Unless otherwise ordered, whenever a document is filed with the Board, it shall at the same time be served on all parties and proposed intervenors in the matter, except that a petition to intervene need be served only on the parties. Unless otherwise ordered by the Board or required herein, electronic filing in lieu of paper filing shall be permitted.95- 629 C.M.R. ch. 4, § 4