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Search the building code.

Every 2024 IRC section and the IBC as it loads, by number or topic, plus the local rules for your city. Free to search.

Detached houses, duplexes and townhouses up to 3 stories with their own exits use the IRC; every other building uses the IBC (IBC 101.2).

A random sample from 1,054 sections for San Antonio, TX, the 2024 IRC and IBC

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  • M2301.3.1

    Collectors and Panels

    • Collectors are listed to ICC 901/SRCC 100 and factory units carry maker, model and serial.

    International Residential Code, 2024 · Chapter 23, Solar Thermal Energy SystemsRead the full text (opens UpCodes in a new tab)

  • M1202.1

    Additions, Alterations or Repairs

    • Additions, alterations and repairs meet new-system rules without forcing the existing system to comply, and may not make it unsafe or overloaded; minor like-for-like work may be approved as built.

    International Residential Code, 2024 · Chapter 12, Mechanical AdministrationRead the full text (opens UpCodes in a new tab)

  • G2427.10.2.2

    Vent Connectors Located in Unconditioned Areas

    • Connectors in attics, crawl spaces or other unconditioned spaces are Type B, L or equivalent insulated, except single-wall inside exterior walls where design temperature is 5 F or above.

    International Residential Code, 2024 · Chapter 24, Fuel GasRead the full text (opens UpCodes in a new tab)

  • G2415.7.1

    Piping Through Bored Holes or Notches

    • Pipe through holes or notches within 1-1/2 in of the face gets shield plates extending 4 in each side (4 in past plates).

    International Residential Code, 2024 · Chapter 24, Fuel GasRead 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.

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