All government buildings, public buildings, and facilities receiving permits for construction or renovation after July 1, 1995, shall comply with the rules and regulations adopted by the Commissioner which meet ADAAG and establish the minimum state standards for accessibility. All government buildings, public buildings, and facilities receiving permits for construction or renovation after July 1, 1984, but before July 1, 1987, shall comply with the American National Standards Institute specifications A117.1-1980 or A117.1-1986 for making buildings and facilities accessible to and usable by people with disabilities except as otherwise provided in paragraph (10) of Code Section 30-3-2; and all government buildings, public buildings, and facilities receiving permits for construction or renovation after July 1, 1987, but before July 1, 1995, shall comply with the American National Standards Institute specifications A117.1-1986 for making buildings and facilities accessible to and usable by people with disabilities except as otherwise provided in paragraph (10) or subparagraph (C) of paragraph (11) of Code Section 30-3-2; provided, however, that nothing in this Code section is intended to require the addition of an elevator where none exists or is planned, solely for the purpose of providing an accessible route between floor levels; provided, further, that the Safety Fire Commissioner or, where applicable, the Board of Regents of the University System of Georgia or the local governing authority having jurisdiction over the buildings in question upon receipt of a sworn written statement from the person who owns or controls the use of any government building, public building, or facility subject to the requirements of this chapter and after taking all circumstances into consideration may determine that full compliance with any particular standard or specification set forth in this chapter is impractical, whereupon there shall be substantial compliance with the standards or specifications to the maximum extent practical and, within 45 days of such determination, a written record shall be made by the Safety Fire Commissioner or, where applicable, the board of regents or the local governing authority having jurisdiction over the buildings in question, setting forth the reasons why it is impractical for the person subject to this chapter to comply fully with the particular standard or specification and also setting forth the extent to which the government building, public building, or facility shall conform with the standard or specification. The Safety Fire Commissioner or, where applicable, the board of regents or the local governing authority having jurisdiction over the buildings in question shall be responsible for making a final determination as to whether or not an exemption shall be granted.