Shreveport Climate Zone & Energy Code

Climate Zone: IECC Climate Zone 3A (mixed-humid, transitional). Shreveport's northwest Louisiana position produces hotter summers than coastal Louisiana, slightly less humidity, and colder winters — a more continental profile than New Orleans or Baton Rouge.

Energy Code & Manual J Requirement: Louisiana Energy Code (IECC 2021 with Louisiana amendments). ACCA Manual J required for Caddo Parish and Bossier Parish HVAC permits.

Local Electric Utility: SWEPCO (Southwestern Electric Power / AEP)

Building Department: City of Shreveport Building Inspections

Local Trade Association: ACCA Louisiana / ASHRAE Louisiana Chapter