N.M. Code R. § 7.8.3.115
B. Circuit breakers or fused switches that provide electrical disconnection and over current protection must be:
(1) Enclosed or guarded to provide a dead front assembly;
(2) Readily accessible for use and maintenance;
(3) Set apart from traffic lanes;
(4) Located in a dry, ventilated space, free of corrosive fumes or gases;
(5) Able to operate properly in all temperature conditions;
(6) Located on the same floor and in the same facility area as the circuits they serve;
(7) Marked, showing the area each circuit breaker or fused switch services;
[7.8.3.115 NMAC – N, 05/15/01]