It shall be the duty of the commission:
After a decision, order or requirement has been made by the commission in any proceeding under this chapter, any party thereto may make application to the commission for reconsideration or rehearing of the same, or of any matter determined herein, and it shall be lawful for the commission in its discretion to grant such reconsideration or a rehearing, if sufficient reason therefor is made to appear. Such application shall be filed within 30 days after date of such decision, order or requirement; provided, that the commission may by order extend such time for not more than 30 days additional. Applications for reconsideration or rehearing shall be governed by such general rules as the commission may prescribe. No such application shall excuse any motor carrier or broker from complying with or obeying any decision or requirement of the commission or operate in any manner to stay or postpone the enforcement thereof without the special order of the commission. If, after such reconsideration or rehearing, it shall appear that the original decision, order or requirement is in any respect unjust or unreasonable, the commission may reverse, change or modify the same accordingly. Any decision, order or requirement made after such reconsideration or rehearing shall be subject to the same provisions as an original decision, order or requirement; provided, however, it shall not be subject to any further application for reconsideration or rehearing by the commission.
Ala. Code § 37-3-7 (1975)