N.M. Stat. § 58-1C-5
Interstate merger transactions and branching permitted.
A. One or more New Mexico banks may enter into an interstate merger transaction
with one or more out-of-state banks pursuant to the Interstate Bank Branching Act, and
an out-of-state bank resulting from the transaction may maintain and operate as
branches in New Mexico the former New Mexico banks that participated in the
transaction if the conditions and filing requirements of that act are met.
B. Except as otherwise expressly provided in this subsection, an interstate merger
transaction is not permitted pursuant to the Interstate Bank Branching Act if, upon
effecting the transaction, the resulting bank, including all insured depository institutions
that would be affiliates, as defined in 12 U.S.C.A. Section 1841(k), of the resulting bank,
would result in an undue concentration of deposits totaling forty percent or more of the
total deposits in all depository institutions in New Mexico. The director may by regulation
adopt a procedure to waive the foregoing prohibition to prevent the insolvency or closing
of a New Mexico state bank.
C. An interstate merger transaction resulting in the acquisition by an out-of-state
bank of a New Mexico bank is not permitted pursuant to the Interstate Bank Branching
Act, unless the New Mexico bank on the date of the acquisition has been in continuous
operation under an active charter for a period of at least five years.