(a) As used in this Code section, the term:

(1) "Disabled veteran" means a veteran discharged under honorable conditions from any branch of the armed forces of the United States who has a physical disability which was incurred during the period of service in the armed forces and who is a resident of the State of Georgia.

(2) "Fee" means the charge or fee established by the Board of Natural Resources for the use or occupancy of any state park, historic site, or recreational area and specifically includes, but is not limited to, entrance or admittance fees, rental fees for cabins or other overnight lodgings, rental fees for campsites, and fees for the use of golf courses or other recreational facilities.

(b) Any disabled veteran may apply to the commissioner of veterans service for certification as a disabled veteran as defined by paragraph (1) of subsection (a) of this Code section. The commissioner of veterans service is authorized and directed to certify such applicants as disabled veterans and to issue to such applicants such proof of certification as the commissioner finds appropriate. The commissioner of veterans service may by rule or regulation require such documentation as may be necessary to certify disabled veterans as provided in this subsection.

(c) Any disabled veteran who is certified as such by the commissioner of veterans service as provided in subsection (b) of this Code section shall be granted a discount of 25 percent of the fee otherwise applicable at any state park, historic site, or recreational area operated by or pursuant to the authority of the Department of Natural Resources or any division or other agency of said department.

(d) The discount provided for in subsection (c) of this Code section:

(1) Shall apply to rental fees for cabins, campsites, or other overnight accommodations for the disabled veteran and members of the disabled veteran's immediate family who occupy the overnight accommodations with the disabled veteran; and

(2) Shall not apply to rental or use fees for any group facilities or accommodations.