Columbia Climate Zone & Energy Code

Climate Zone: IECC Climate Zone 4A (mixed-humid). Heating design 4°F, cooling design 94°F/76°F.

Energy Code & Manual J Requirement: Missouri has no mandatory statewide energy code; local jurisdictions typically enforce IECC 2018. ACCA Manual J is required for all HVAC permit applications in Boone County.

Local Electric Utility: Ameren Missouri

Building Department: City of Columbia Department of Planning & Development

Local Trade Association: ACCA Missouri / ASHRAE Missouri Chapter