us-nm/stat
NMSA 1978, § 7-11-4 — Situs of railway cars; gross earnings
A.
For the purpose of taxation, any railway car owned by an organization and used
exclusively within this state or used partially within and partially without this state has
situs within this state.
B.
The term "gross earnings" shall be construed to mean all earnings on business
beginning and ending within this state and on a proportion, based on the division of
mileage in this state by the entire mileage over which business is done, of all interstate
business passing through, into or out of this state.
Source: official text