A. Any party aggrieved by a Board decision and order may apply for rehearing within 30 days after service on him of the decision and order. Action on the application shall lie in the discretion of the Board.
B. Unless otherwise ordered, neither the rehearing nor the application shall stay the enforcement of the order, or excuse the persons affected by it for failure to comply with its terms.
C. On rehearing, the Board may consider facts not presented in the original hearing, including facts arising after the date of the original hearing, and may, by new order, abrogate, change, or modify their original order.