N.M. Stat. § 32A-28-25
Discharge hearing.
A. At the last review or permanency hearing held prior to the Indian child's
eighteenth birthday, the court shall determine whether documentation of the Indian
child's tribal membership and any information regarding the Indian child's tribal affiliation
have been provided to the Indian child.
B. If the court finds that the department has not made active efforts to meet all of
the requirements of Section 32A-4-25.3 NMSA 1978 and of Subsection A of this section
and that termination of jurisdiction would be harmful to the Indian child, the court may
continue to exercise its jurisdiction. The court may dismiss the case at any time after
the Indian child's eighteenth birthday for good cause.