Eugene Climate Zone & Energy Code

Climate Zone: IECC Climate Zone 4C (marine). Eugene's Willamette Valley location produces warm, dry summers (92°F/67°F cooling design) and mild, wet winters (22°F heating design). Heat pumps are ideal primary systems in this climate.

Energy Code & Manual J Requirement: Oregon Residential Specialty Code (ORSC). ACCA Manual J required for all Lane County HVAC permit applications.

Local Electric Utility: Eugene Water & Electric Board (EWEB, City-owned)

Building Department: City of Eugene Building & Permit Services

Local Trade Association: PHCC Oregon / ASHRAE Oregon Chapter