The board may order a reconsideration of all or part of a decision or order on the board’s own motion or on the filing of a petition of any interested person or entity. The petition shall be filed not later than 30 days from the date the board adopts a decision or order. The authority of the board to order a reconsideration on its own motion shall expire 30 days after it has adopted a decision or order. The board shall order or deny reconsideration on a petition therefor not later than 90 days from the date the board adopts the decision or
order.