The initial edition of the Georgia State Minimum Standard Energy Code was promulgated by the State Building Administration Board as authorized by Ga. L., 1978, p. 2212, which went into effect on July 16, 1978. The code was based on both the Model Code for Energy Conservation and ASHRAE Standard 90-1975.
The 2000 IECC with state amendments went into effect on January 1, 2003, and SHGC 0.40 requirements which went into effect on January 1, 2004. ASHRAE 90.1-2001 became effective January 1, 2003, although Chapter 8 of the 2000 IECC could be used as an alternative.
The 2006 IECC referencing ASHRAE 90.1-2004 went into effect January 1, 2008.
On January 1, 2011, the 2011 Georgia State Minimum Standard Energy Code became effective statewide. Approved by the Department of Community Affairs (DCA) Board on November 3, 2010, it is based on the 2009 IECC with 2011 Georgia Amendments (including mandatory blower door testing starting July 1, 2011) as a minimum (mandatory) code.
The state also adopted the 2011 Georgia State Minimum Residential Green Building Standard, based on the 2008 National Green Building Standard (NGBS) with 2011 Georgia Amendments, as a permissive (optional) code. It is available for local government adoption and enforcement. Local governments choosing to enforce any permissive codes must adopt the code(s) they wish to enforce, as well as administrative procedures and penalties