Nevada Building Codes

Nevada operates under a county/municipal adoption model where building codes are adopted locally, but energy codes are mandated statewide through NRS 701.220 which requires the Governor's Office of Energy to adopt the most recent IECC every three years. As of August 18, 2024, the 2024 IECC is the statewide energy standard. The state has 16 counties plus 1 independent city (Carson City) organized into two primary code regions: Southern Nevada (coordinated by SNBO - Southern Nevada Building Officials) and Northern Nevada (coordinated by NNICC - Northern Nevada International Code Council). Clark County contains over 73% of the state's population concentrated in the Las Vegas metropolitan area. Climate zones span 3B (Las Vegas valley, lower elevations), 4B (middle elevations), and 5B (higher elevations). A key Southern Nevada amendment specifies that areas within Clark County above 4,000 feet altitude shall be considered Climate Zone 5B, and areas within Nye County below 4,000 feet shall be considered Climate Zone 3B. The State Fire Marshal (NRS 477) has statewide jurisdiction over fire codes and adopted the 2018 IFC, IBC (structural fire safety), IWUIC, and IECC effective February 2020. Local fire authorities having jurisdiction may adopt more recent editions. The 2024 IFC with regional amendments is being adopted effective January 2026. The State Public Works Division (NRS 341, NAC 341.045) has exclusive building code jurisdiction over state-owned facilities and has adopted the 2024 ICC codes effective December 2024 with a grace period through June 30, 2025. No statewide contractor licensing preemption exists for building code amendments - localities may adopt more stringent requirements. Wildland-Urban Interface (WUI) codes apply in designated fire hazard areas throughout the state. FEMA flood zones are present throughout Clark and Washoe counties and other areas. Seismic design considerations apply statewide with varying SDC classifications.