Newark Climate Zone & Energy Code

Climate Zone: IECC Climate Zone 4A (mixed-humid). Newark Delaware shares Wilmington's Mid-Atlantic climate — hot, humid summers and cold winters requiring genuine four-season HVAC system sizing.

Energy Code & Manual J Requirement: Delaware Residential Energy Code (IECC 2018). ACCA Manual J required for residential HVAC permits. City of Newark and New Castle County both administer permits consistent with state code.

Local Electric Utility: Delmarva Power (Pepco Holdings)

Building Department: City of Newark Building Department

Local Trade Association: ACCA Mid-Atlantic Chapter