Simultaneous review. The Planning Board shall have the power to review and approve or deny conditional uses or site plans simultaneously with review for subdivision approval without the developer being required to make further application to the Planning Board, or the Planning Board being required to hold further hearings. The longest time period for action by the Planning Board, whether it be for subdivision, conditional use or site plan approval, shall apply. Whenever approval of a conditional use is requested by the developer, notice of the hearing on the plat shall include reference to the request for such conditional use.