Town Board action. Within 90 days of receipt of a complete application, including the recommendation (if any) from the Planning Board, the Town Board shall hold a public hearing on the application for a business park Overlay District designation. Within 90 days of the close of the public hearing, the Town Board shall act to approve, approve with modifications, or disapprove the request for a business park Overlay District designation. The time within which the Board must render its decision may be extended for such additional time as the Board may deem reasonable or necessary to render a decision. The failure of the Board to take action within 90 days of the close of the public hearing, or within such additional time period as may be agreed to or established by the Board, shall not result in, and shall not be construed to result in, a default approval of the application. The Board may, if it feels necessary to fully protect the public health, safety and welfare of the community, attach to the designation any reasonable conditions or requirements for the applicant to meet. The decision of the Board shall be filed in the office of the Town Clerk within five business days of the date such decision is rendered, and a copy thereof shall be mailed to the applicant.