Nevada's first energy code, "Energy Conservation Standards for New Building Construction," was adopted on January 1, 1978. This code, based on ASHRAE Standard 90-75, was written by the state and formulated by the Nevada Department of Energy. All cities and counties were required to enforce the energy code requirements. The Nevada Department of Energy was disbanded in 1983. Between 1983 and 1986, the state did not support or enforce this energy code.
In 1985 the legislature gave the Nevada Office of Community Services authority to formulate new statewide standards for energy conservation in new buildings. Adopted on July 8, 1988, the "Regulations for the Conservation of Energy in New Building Construction" were formulated based on the 1986 MEC with minor state amendments. This code is applicable only in areas where the local jurisdiction had not previously adopted an energy code. This remains the basis for the statewide energy code. The Nevada Office of Community Services was dissolved in the fall of 1993.
The 2003 IECC became mandatory for all jurisdictions that have not adopted an energy code when Nevada Chapter 701 was passed on January 1, 2005. It went into effect June 17, 2005. REScheck and COMcheck can be used to show compliance for the envelope and mechanical only.
On May 22, 2009, Gov. Jim Gibbons signed into law legislation (SB 73 and 358) that revises the process of updating the state's building energy codes by establishing the standards adopted by the Nevada State Office of Energy as the minimum standards for building energy efficiency and conservation. The law requires local governments to adopt the codes set by the Office of Energy and to enforce them (they are also allowed to adopt more stringent standards provided they give notice to the Office of Energy). The law mandates the adoption of the most recent version of the International Energy Conservation Code (IECC) and requires the adoption of the most recent updated version of the IECC every three years. The Office of Energy must still hold public hearings in three different locations in the state after giving 30 days' notice of such hearings before adopting any new standards.
2009 IECC Update: The Nevada State Office of Energy (NSOE) posted draft regulations (LCB File Number R024-11) and scheduled dates for the state’s rulemaking process to adopt the 2009 IECC (as required under NRS 701.220) in fall 2011. NSOE hosted two stakeholder meetings in Las Vegas and Reno and three regulation hearings in Las Vegas, Carson City, and Elko.NSOE adopted final regulations (LCB File No. R024-11) on December 30, 2011. They will be effective July 1, 2012.
BCAP has partnered with NSOE and other stakeholders to develop the Nevada Gap Analysis report and 5-Year Strategic Compliance Plan as part of BCAP’s CPA Program.
The City of Las Vegas has already adopted the Southern Nevada Building Officials (SNBO) 2009 IECC Amendments for Southern Nevada effective July 5, 2011.