(a) Except as provided in subsections (b) and (c) of this Code section, any person, firm, corporation, or association lawfully entitled to burn any woods, lands, marshes, or any other flammable vegetation, whether in cultivated or uncultivated areas, shall prior to such burning obtain a permit therefor from the forest ranger of the county wherein such burning is to be made or from another employee of the forestry unit serving such county who is authorized by the chief forester of such unit to grant such permits. An applicant for a permit shall provide the county forest ranger or other authorized employee of the forestry unit serving the county with the location and the recommended time of the proposed burn. Such information may be provided and the permit may be obtained by a telephone call to the county forest ranger or to another authorized employee of the forestry unit serving the county. The permit shall be given by providing the applicant therefor with a permit number which will grant permission for a controlled burn to take place at the location specified by the applicant at a time approved by the county forest ranger or by the other authorized employee of the forestry unit serving the county.

(b) It shall not be necessary to obtain a permit otherwise required by subsection (a) of this Code section if a sudden emergency requires a firing in order to render one's premises safe. In any prosecution under this Code section, a necessary firing in a sudden emergency shall constitute an affirmative defense, but the burden of proving such necessity shall rest upon the person asserting it as a defense.

(c) It shall not be necessary to obtain a permit otherwise required by subsection (a) of this Code section to burn improved pastures, residue on cultivated crop land, or leaf piles if the person, firm, corporation, or association intending to burn such residue shall, prior to such burning, give notice of the approximate time and location thereof to the forest ranger of the county wherein such burning is to be made or to an employee of the forestry unit serving such county who is authorized to grant permits under subsection (a) of this Code section.

(d) The notice or permit required by this Code section shall be in addition to any other notice or permit or other requirement for burning provided for by law or by ordinance, resolution, or regulation of any county or municipality of this state; provided, however, that no additional restrictions provided by local ordinance shall prohibit burning the understory for the health of the forest and wildlife or prohibit the landowner's ability to reduce fuel loads on the forest floor for the safety of the community; provided, further, that the foregoing exception shall not apply to the burning of leaf or brush piles not necessary to accomplish the purposes of prescribed burning.

(e) Any person who fails to give any notice required by subsection (c) of this Code section or who makes a burn described by subsection (a) of this Code section without obtaining the permit required by said subsection shall be guilty of a misdemeanor.