Official State of Rhode Island website

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State of Rhode Island Office of Energy Resources

Energy Building Codes

Rhode Island’s Energy Conservation Code is based on the 2024 edition of the International Energy Conservation Code (IECC), adopted with only minimal changes to ensure consistency with existing RI laws and procedures. The state was reportedly the first in the nation to adopt the 2024 IECC, expected to cut building energy use by 8 to 12%, and the code includes electric readiness provisions and stricter residential envelope and performance-path requirements. State law requires the code to meet or exceed the most recently published IECC, or achieve equivalent or greater energy savings.