N.M. Stat. § 6-10-16.1
for public deposits.
All deposits of public funds shall be secured by securities as defined in Section 6-10-
16 NMSA 1978 in the amount required by law or by surety bonds as provided for in
Section 6-10-15 NMSA 1978. A surety company that issues a surety bond pursuant to
this section shall be rated in the highest category by at least one nationally recognized
statistical rating agency.