Omaha Climate Zone & Energy Code

Climate Zone: IECC Climate Zone 5A (cold-humid). Omaha's Great Plains location produces hot, humid summers (95°F/74°F cooling design) and very cold winters (-4°F heating design). Both heating and cooling loads drive substantial equipment sizing.

Energy Code & Manual J Requirement: Nebraska Energy Code (IECC 2018). ACCA Manual J required for Douglas County and Sarpy County HVAC permits.

Local Electric Utility: OPPD (Omaha Public Power District)

Building Department: City of Omaha Building Department

Local Trade Association: PHCC Nebraska / ASHRAE Nebraska Chapter / SMACNA Nebraska