N.M. Code R. § 13.11.2.10
A liability insurance policy as specified in Subsection B of 13.11.2.9 NMAC which contains a provision limiting legal defense costs shall be issued or renewed in this state only if the requirements of Subsections A and B of 13.11.2.10 NMAC are met, or if the requirement of Subsection C of 13.11.2.10 NMAC is met.
C. The limitation specified in Subsections A and B of 13.11.2.10 NMAC may be omitted if the policy provides that the insured shall have the option to:
(1) select the defense attorney or to consent to the insurer’s choice of defense attorney, which consent shall not be unreasonably withheld;
(2) participate in, and assist in the direction of the defense of any claim with such participation and assistance not limiting the insurer’s right to control the defense; and
(3) consent to a settlement, which consent shall not be unreasonably withheld.
[10/13/88; 13.11.2.10 NMAC - Rn & A, 13 NMAC 11.2.10 NMAC, 6/30/04]