Whenever an application for a special permit is filed with a S.P.G.A., the applicant shall also file, within three (3) working days of the filing of the completed application with said authority, copies of the application, accompanying site plan, and other documentation, to the Board of Health, Conservation Commission, Building Inspector, Director of Public Works, Police Chief, Fire Chief, and the Town Planner for their consideration, review, and report. The copies necessary to fulfill this requirement shall be furnished by the applicant. An application shall not be deemed complete until all copies of required information and documentation have been filed with the S.P.G.A. Said authority shall notify applicants by registered mail, within 14 days of submittal, of incomplete application status, and the applicant shall have 14 days from the mailing of such notice to complete an application. Failure to either complete an application within such time or to request permission to withdraw the incomplete application without prejudice prior to the publication of the notice of the public hearing thereon, shall result in a denial of the application on the ground that it is incomplete. Reports from other boards and officials shall be submitted to the S.P.G.A. by the date of the public hearing, but in any case within thirty-five (35) days of receipt of the reviewing party of all of the required materials; failure of these reviewing parties to make recommendations after having received copies of all such required materials shall be deemed a lack of opposition thereto. In the event that the public hearing by the S.P.G.A. is held prior to the expiration of the 35 day period, said authority shall continue the public hearing to permit the formal submission of reports and recommendations within that 35 day period. The Decision/Findings of the S.P.G.A. shall contain, in writing, an explanation for any departures from the recommendations of any reviewing party.