Any outdoor fire or outdoor smoke producing process from which air contaminants are emitted directly into the outdoor atmosphere. Open fires include burning in barrels or modified barrels. Open fires do not include burning in outdoor furnaces or boilers that are used to heat buildings when the devices are actually used for such purpose.

The land and on-farm buildings, equipment, manure processing and handling facilities, and practices that contribute to the production, preparation and marketing of crops, livestock and livestock products as a commercial enterprise, including a 'commercial horse boarding operation' and 'timber processing.' Such farm operation may consist of one or more parcels of owned or rented land, which parcels may be contiguous or noncontiguous to each other.

A camp fire or any other outdoor open fire less than three feet in height, and less than four feet in length and width or diameter.

Any waste from naturally grown products such as vines, trees and branches from orchards, leaves and stubble. In addition, any fully organic waste either grown or generated on the premises, including but not limited to paper feed bags, wood shavings used for livestock bedding, bailing twine, and other non-plastic materials. Agricultural waste does not include pesticide containers, fertilizer bags, large plastic storage bags (including bags commonly known as "Ag bags"), offal, tires, plastic feed bags, and other plastic or synthetic materials.

A structure donated or loaned from a property owner for the purpose of conducting fire training.

For the purposes of this Part, any wood or lumber which is not chemically treated, coated, stained, sealed, glued or otherwise adulterated. Untreated wood does not include such materials as pressure treated lumber, plywood, particle board, fiberboard, and oriented strand board.

The burning of material, grown or generated on a particular property, in an open fire on the same property. For purposes of this definition, the same property shall include only property that is geographically contiguous and under the control or ownership of the same person.