Coordination of benefits ("COB") rules of the authority's medical and dental carrier shall prevail in any situation where a conflict exists with any other authority benefits carrier. In the event of a conflict among authority carriers addressed by COB rules, the COB rules of the carrier of coverages wherein the authority is at risk will prevail. In the event of a conflict between an authority carrier and a non-authority carrier addressed by the COB rules of the authority carrier, the authority carrier COB rules will prevail.
N.M. Admin. Code § 6.50.9.11