2024 International Residential Code (IRC) – ICC Softcover

The 2024 International Residential Code (IRC) in softcover is the International Code Council’s current model code for one- and two-family dwellings and townhouses, covering building, plumbing, mechanical, fuel gas, energy, and electrical requirements in one volume, for builders, inspectors, and contractor exam candidates.

The IRC is the code most houses in the United States are built under. The International Code Council (ICC) updates it every three years, and the 2024 edition brings a long list of changes that affect everyday residential work: braced wall lines must sit on a physical wall, two-family separation is one hour regardless of lot lines, emergency escape openings need a clear 36-inch path, and deck design now accounts for snow load.

What’s included

• 2024 International Residential Code for One- and Two-Family Dwellings – softcover, published by ICC; ISBN 978-1-959851-63-9
• Building, energy, mechanical, fuel gas, plumbing, and electrical provisions for dwellings and townhouses up to three stories
• Updated wind-speed maps, footing tables, deck guard requirements, and dwelling sprinkler section P2904 aligned with NFPA 13D
• Electrical updates including an outdoor emergency disconnect and a surge-protective device at the service

Who it’s for

Residential general contractors and framers, HVAC and plumbing installers, and home builders working in jurisdictions that adopt the 2024 IRC. Building inspectors and plan reviewers. Candidates for state contractor licensing exams and ICC certification exams that reference the 2024 IRC.

Why this edition

Each IRC cycle folds in three years of approved changes, and the 2024 edition is the one jurisdictions are adopting now, so it will be the enforced code for years to come. A current copy avoids surprises at inspection: the ban on commercial gas cooking appliances in dwellings and the higher DWV test head are both new. If your area is still on the 2021 IRC, ask the building department when it plans to move.

Frequently asked questions

Is the 2024 IRC the current edition?

Yes. The International Code Council publishes the IRC on a three-year cycle, and 2024 is the current edition. States and municipalities adopt it on their own schedules, so check which edition applies to your permit.

What is the difference between the IRC and the IBC?

The International Residential Code covers detached one- and two-family dwellings and townhouses up to three stories. The International Building Code covers everything else.

Does the 2024 IRC include electrical and plumbing requirements?

Yes. The IRC is a complete residential code: building, energy, mechanical, fuel gas, plumbing, and electrical provisions are all in this one volume, with the electrical chapters drawn from the NEC.

Details