(1) "Field burning" and "open field burning" do not include:

(a) Propane flaming of mint stubble; or

(b) Stack or pile burning of residue from Christmas trees as defined in ORS 571.505.

(2) "Research and development of alternatives to field burning" includes, but is not limited to, projects concerned with cultural practices for producing grass seed without field burning, environmental impacts of alternative seed production methods, straw marketing and utilization and alternative crops.

(3) "Smoke management" means the daily control of the conducting of open field burning to such times and places and in such amounts so as to provide for the escape of smoke and particulate matter therefrom into the atmosphere with minimal intrusion into cities and minimal impact on public health and in such a manner that under existing meteorological conditions a maximum number of acres registered can be burned in a minimum number of days without substantial impairment of air quality.

(4) "Smoke management program" means a plan or system for smoke management. A smoke management program shall include, but not be limited to, provisions for:

(a) Annual inventorying and registering, prior to the burning season, of agricultural fields for open field burning;

(b) Preparation and issuance of open field burning permits by affected governmental agencies;

(c) Gathering and disseminating regional and sectional meteorological conditions on a daily or hourly basis;

(d) Scheduling times, places and amounts of agricultural fields that may be open burned daily or hourly, based on meteorological conditions during the burning season;

(e) Conducting surveillance and gathering and disseminating information on a daily or more frequent basis;

(f) Effective communications between affected personnel during the burning season; and

(g) Employment of personnel to conduct the program. [Formerly 468.453; 1997 c.473 §3; 1999 c.439 §2; 2001 c.70 §1; 2007 c.799 §5]