N.M. Stat. § 58-1C-9
Powers; additional branches.
A. An out-of-state state bank with branches in New Mexico authorized pursuant to
the Interstate Bank Branching Act may conduct any activities at its branches that are
authorized pursuant to the laws of this state for New Mexico state banks.
B. A New Mexico state bank may conduct any activities at any branch outside New
Mexico that are permissible for a bank chartered by the host state where the branch is
located.
C. An out-of-state bank that has acquired branches in New Mexico under the
Interstate Bank Branching Act may establish or acquire additional branches in New
Mexico to the same extent that any New Mexico bank may establish or acquire a branch
in New Mexico pursuant to applicable federal and state law.