On August 2, 2024, Governor Sununu signed into law House Bill 1059, which updated the NH State Building Code (RSA 155-A) to the 2021 editions with NH amendments. Note, the Energy Code remains at the 2018 edition. The code updates, retroactively, went into effect July 1, 2024 however, are not required to be fully enforced until January 1, 2025. https://www.gencourt.state.nh.us/bill_Status/pdf.aspx?id=32332&q=billVersion