(1) Fences shall be of the industrial type, with a maximum mesh opening of 2 in, be of 9 gauge wire, or heavier, be 8 ft in height and be topped by 3 strands or barbed wire angled at 45º.
(2) Each must completely surround a magazine at a distance of at least 15 ft and have a padlocked gate, to be opened only when servicing the magazine.
(3) The bottom of the fence must be within 3 in of the surface of hard ground or must be set 1 ft deep into soft earth.
(4) In the case of a complex described in section 26, a single fence surrounding the whole complex is sufficient. Generally, a special fence is not required when the magazine is on the grounds of an establishment surrounded by a fence at least as protective as the prescribed fence.