N.M. Code R. § 13.14.9.8
The rates and charges authorized by these rules shall be established by order of the superintendent in a title rate case conducted pursuant to Subsection A of Section 59A-30-8 NMSA 1978, or as amended or supplemented by order issued after a hearing conducted pursuant to Subsection B of Section 59A-30-8 NMSA 1978. All references to rates and charges in these rules shall mean the rates and charges established by the superintendent's order in the most recent rate hearing case, including any amending or supplementing order, in effect at the time the premium or charge is incurred. On his own motion, or at the request of an interested person, the superintendent may, at any time, conduct a formal or informal hearing to consider whether to promulgate a new or amended rate or charge.
N.M. Code R. § 13.14.9.8