NORTHERN SIERRA AIR QUALITY MANAGEMENT DISTRICT

RULE 314 - MINIMUM DRYING TIMES
(Adopted: September 11, 1991)

Requirements

To lower the moisture content of the material being burned, the elapsed time between cutting and burning shall be:

1. A minimum of three days for green straw and stubble.
2. A minimum of three weeks 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.
3. A minimum of six weeks for trees, stumps, and large branches greater that six inches in diameter.
4. Under Forest Management Burning the drying time shall be specified by the designated agency.