Oklahoma
Oklahoma has adopted the 2015 IRC, with amendments, as its residential code, effective November 2016.
ASHRAE 90.1-2010: No
ASHRAE 90.1-2013: No
Energy cost savings for Oklahoma resulting from the state updating its commercial and residential building energy codes in accordance with federal law are significant, estimated to be on the order of nearly $150 million annually by 2030.
Oklahoma DOE Determination Letter, May 31, 2013
2012 IECC: No
2015 IECC: No
Energy cost savings for Oklahoma resulting from the state updating its commercial and residential building energy codes in accordance with federal law are significant, estimated to be on the order of nearly $150 million annually by 2030.
Oklahoma DOE Determination Letter, May 31, 2013
State Owned / Funded Buildings
All state buildings over 10,000 sq. ft. to follow LEED guidelines or those of Green Globes. Compliance will be measured by the Department of Central Services. HB 3394, 200.
Adoption Process
Statewide residential and building codes are reviewed by the OUBCC and then sent to the Legislature and Governor for approval. For more information on the legistlative process, see Permanent Rules and Executive Orders of OUBCC.
Enforcement Process
Local jurisdictions are responsible for enforcing any locally adopted codes. The Oklahoma State Department of Central Services administers construction and maintenance programs for state-owned and -leased buildings.
Compliance Process
For state-owned buildings, the Oklahoma Office of Central Services, Construction Properties Division, monitors the construction process for compliance with the relevant construction codes. Non-state-owned buildings must comply with whatever the state has put in place, which is currently the 2003 International Building Code (IBC) that includes the 2003 International Energy Conservation Code (IECC).
Background
1997 - BOCA 1996, including 1995 MEC
2004 - IBC 2003, including 2003 IECC
2007 Proposed - 2006 IBC, including 2006 IECC
State codes are mandatory for jurisdictions without codes and for state facilities.