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• N1108.2.3.1

  Compact Hot Water Distribution System Option

  • Compact hot water credit: no more than 16 oz of water in the pipe from the nearest hot source to each fixture; recirculation loops need demand control and a dedicated return.

  International Residential Code, 2024 · Chapter 11, Energy EfficiencyRead the full text (opens UpCodes in a new tab)

• N1106.7.3

  Renewable Energy Certificate (REC) Documentation

  • Renewables counted in the ERI need REC documentation per N1104.4.

  International Residential Code, 2024 · Chapter 11, Energy EfficiencyRead the full text (opens UpCodes in a new tab)

• N1111

  Alterations

  International Residential Code, 2024 · Chapter 11, Energy EfficiencyRead the full text (opens UpCodes in a new tab)

• N1103.3.7

  Duct System Testing

  • Every duct system is leak-tested at 25 Pa (RESNET 380 or ASTM E1554) at rough-in or final, with a signed report; standalone ventilation and short fully-inside systems of 10 ft or less are exempt.

  International Residential Code, 2024 · Chapter 11, Energy EfficiencyRead the full text (opens UpCodes in a new tab)

• N1104

  Electrical Power, Lighting and Renewable Energy Systems

  International Residential Code, 2024 · Chapter 11, Energy EfficiencyRead the full text (opens UpCodes in a new tab)

• N1106

  Energy Rating Index Compliance Alternative

  International Residential Code, 2024 · Chapter 11, Energy EfficiencyRead the full text (opens UpCodes in a new tab)

• N1109.5

  Historic Buildings

  • Historic buildings may skip a provision with a signed report showing it would harm the historic fabric.

  International Residential Code, 2024 · Chapter 11, Energy EfficiencyRead the full text (opens UpCodes in a new tab)

• N1112

  Repairs

  International Residential Code, 2024 · Chapter 11, Energy EfficiencyRead the full text (opens UpCodes in a new tab)

Searches all 4,276 IRC 2024 sections, 5,532 IBC 2024 sections and defined terms (Chapters 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33 so far) and each city's local rules as they are added. Section numbers and titles from the International Residential Code and International Building Code, 2024 editions, copyrighted by the International Code Council; the IRC's electrical chapters (34 to 43) follow NFPA 70, the National Electrical Code. Requirements are summarized in our words (IRC Chapters 3 to 43, IBC Chapters 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33); read the full text at the link on each result. Local values come from each city's published documents.