N.M. Stat. § 59A-21-10
Insurance under any group life insurance policy issued pursuant to Sections 59A-21-4 and 59A-21-6 through 59A-21-8 NMSA 1978 may be extended to insure the dependents, or any class or classes thereof, of each employee or member who so elects. The term "dependent" means the spouse of the employee or member and an employee's or member's minor child, including a child beyond the age of majority up to a maximum of twenty-five years of age while attending an educational institution, and such other children of the employee or member as provided within the group life insurance policy. The premiums for the insurance on such dependents may be paid by the group policyholder or by the employee or member or by the group policyholder and the employee or member jointly.
NMS § 59A-21-10