AMADOR COUNTY AIR POLLUTION CONTROL DISTRICT
RULE 305 - MINIMUM DRYING TIME
No person required to comply with this Rule shall knowingly permit open outdoor fires that do not meet the following requirements.
To lower the moisture content of the material being burned, the elapsed time between cutting and burning shall be:
A. A minimum of three days for green straw and stubble.
B. Sufficient time for agricultural waste such as orchard prunings, small branches, vegetable tops, and seed screenings to assure rapid and complete combustion with a minimum of smoke.
C. A minimum of six weeks for trees, stumps, and large branches greater than six inches in diameter.
D. For prescribed burning, the drying time shall be specified by the designated agency.
E. For range improvement burning, the brush shall be felled, crushed or uprooted with mechanical equipment, or desiccated with herbicides, or dead at least six months prior to the burn if economically and technically feasible.
The APCO may, by special permit, authorize shorter drying times if the denial of such a permit would threaten imminent and substantial economic loss.