The U.S. Department of Energy has determined that the 2024 International Energy Conservation Code (IECC) will improve energy efficiency in residential buildings compared to the 2021 edition. This results in national savings of around 7.80% in site energy, 6.80% in source energy, and 6.60% in energy costs. Under federal law, each state must review and potentially update their building codes to meet or surpass the new 2024 IECC standards by December 30, 2026. The DOE provides guidance and technical assistance to support states in this process.
Simple Explanation
The government has decided that new rules for building houses in 2024 will help people use less energy and save money compared to the old rules from 2021. Each state needs to look at these new rules and see if they should change their own rules to be just as good or better by the end of 2026.