Such jurisdictions are required to enforce these regulations, but may adopt less-stringent regulations without state approval. The authority of the Nevada State Energy Office to make changes to the energy code must be processed through the state legislature. All southern Nevada building departments have adopted the 1992 MEC, which includes Clark County, the city of Las Vegas, the city of North Las Vegas, the city of Henderson, Boulder City and the city of Mesquite. The NPWB generally requires the plans to be stamped by a registered engineer or architect to indicate compliance with the energy code requirements. Field inspections are performed by the local jurisdiction during established construction inspections.
Interpretations are the responsibility of the local jurisdiction.
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. This code is applicable only in areas where the local jurisdiction had not previously adopted an energy code.