Within 20 days after entry of a commission order a party of record whom the order adversely affects may file with the commission clerk an application for rehearing on a matter the order determined, setting forth the respect in which the party believes the order is erroneous. The commission shall grant or refuse the application in whole or in part within 10 business days after the party files it, and the commission's failure to act on the application within such period shall be deemed a refusal and a final disposition of such application. In the event the commission grants the rehearing, the commission may enter a new order after rehearing as the circumstances may require.
N.M. Admin. Code § 19.15.4.25