Driveways between and around lumber piles shall be at least 15 feet
wide and maintained free from accumulation of rubbish, equipment or
other articles or materials. Driveways shall be so spaced that a maximum
grid system unit of 50 feet by 150 feet is produced.
Permanent lumber storage, operating under a permit, shall be surrounded
with a suitable fence at least six feet high, unless storage is within
a building.
The burning of shavings, sawdust and refuse material shall be permitted
only under boilers, in furnaces or in incinerators or refuse burners
safely constructed and located. Stacks shall be provided with approved
spark arresters having openings not greater than 3/4 inch or other
effective means provided which will eliminate the danger from sparks,
such as an expansion chamber, baffle walls or other effective arrangement.
At boiler or other points where sawdust or shavings are used as fuel,
a storage bin of noncombustible construction with raised sill shall
be provided.
Smoking shall be prohibited except in specified safe locations in
buildings. Large "No Smoking" signs shall be painted on exterior building
walls and on signs erected at driveway edges. "No Smoking" signs shall
be posted throughout all buildings except in specific locations designated
as safe for smoking purposes.