International Energy Conservation Code (IECC) 2024

Background

The International Energy Conservation Codes (IECC) is one of two predominant energy codes adopted by states in the Northeast and Mid-Atlantic. Developed by the International Codes Council (ICC), the IECC has provisions for both residential and commercial homes and buildings. States often adopt the IECC in its entirety for both residential and commercial.

Process

The adoption process for the 2024 IECC differs from previous iterations of the IECC. In 2021, the ICC Board of Directors voted to shift from a codes process to a standards process. Instead of ICC Governmental Members voting, Residential and Commercial Consensus Committees develop the content for inclusion in the 2024 IECC. These committees, which include industry experts and code officials from different sectors who follow ANSI development procedures and others outlined by the ICC, take into account proposals received in an open call for 2024 IECC proposals.

Public Comment Period

After a year of numerous International Code Council (ICC) 2024 International Energy Conservation Code (IECC) Consensus Committee meetings, the 2024 IECC is in final stages of development before publication.

The second public comment period for Public Comment Draft #2 ended on June 30, 2023, and a monograph of public comments was posted to the ICC website in July 2023. Public Comment Draft #2 of the 2024 IECC for residential and commercial buildings is currently undergoing review by the consensus committees, which will be meeting as follows:

The Residential Consensus Committee will meet weekly at 2:00 p.m. Eastern on Thursday, from August 3 through September 14 or as needed. A link to the meeting can be found here. A full list of subcommittee meeting links can also be found here, and information about upcoming meetings can be found on the Residential Consensus Committee webpage.
The Commercial Consensus Committee will meet weekly at 2:00 p.m. Eastern on Wednesday, August 9 through September 13 or as needed. A link to the meeting can be found here. A full list of subcommittee meeting links can also be found here, and information about upcoming meetings can be found on the Commercial Consensus Committee webpage.