Where a majority of the board (pre-2001 amendment to §171-5) did not affirmatively approve or disapprove of electric company's application to modernize and expand electric generating station on conservation land within the time established, the board failed to render a "decision" so as to avoid the 180-day default mechanism of §183-41; thus, electric company was allowed to subject land to the use applied for. 102 H. 257, 75 P.3d 160.