N.M. Stat. § 59A-17-26
Binding agreements by insurers.
No insurer shall assume an obligation to a person other than a policyholder or other
insurers that with it are under common control or management or are members of a joint
underwriting organization subject to the provisions of Section 59A-17-25 NMSA 1978, to
use or adhere to certain rates or rules, and no other person shall impose a penalty or
other adverse consequence for failure of an insurer to adhere to certain rates or rules
except as to action by the superintendent in enforcement of Section 59A-17-12 NMSA
1978.