Kentucky Building Codes

Kentucky Residential Code (KRC) 2018 3rd Ed. (based on 2015 IRC, effective Aug 2024) and Kentucky Building Code (KBC) 2018 4th Ed. (based on 2015 IBC, effective Feb 2024). DHBC administers statewide. Mini/Maxi code doctrine: locals cannot be more/less stringent without state approval. Energy: 2018 IECC with KY amendments. 2023 NEC with delayed provisions until Jul 15, 2026. Climate Zone 4A statewide. No statewide GC license (electrical/plumbing/HVAC licensed). New Madrid Seismic Zone (West KY SDC D). Karst terrain (Mammoth Cave area, Bowling Green, Lexington). Mine subsidence (Eastern KY coal field - Pike/Floyd/Letcher/Harlan counties).