ARM 36.11.226. PRECOMMERCIAL THINNING UNITS SMA

(1) For this SMA: (a) Slash on the perimeter of, or adjacent to, a precommercial thinning unit must meet the general standard. (b) If the boundary of the unit coincides with a change in land ownership, it must have either: (i) a 12-foot fire break; (ii) a 33-foot fuel break; or (iii) the slash must be lopped to a height of 18 inches for 66 feet inside the unit boundary. (c) The department may approve other methods when such methods would maintain public and firefighter safety.