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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 713 sections for San Antonio, TX, the 2024 IRC and IBC

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  • E3904.4

    Raceways as Means of Support

    • Raceways support other things only if identified for it, carrying related Class 2 control wiring, or holding boxes per E3906.8.4/E3906.8.5 (NEC 300.11(C)).

    International Residential Code, 2024 · Chapter 39, Power and Lighting DistributionRead the full text (opens UpCodes in a new tab)

  • E4303.2

    Wiring Methods and Materials on Load Side of the Class 2 Power Source

    • Class 2 cables inside buildings are listed fire-resistant and marked, with higher-rated substitutions or Chapter 38 methods allowed (NEC 725.130(B), 722.135, 722.179).

    International Residential Code, 2024 · Chapter 43, Class 2 Remote-Control, Signaling and Power-Limited CircuitsRead the full text (opens UpCodes in a new tab)

  • E4001.4

    Time Switches and Similar Devices

    • Time switches are enclosed, with a barrier around live parts for manual adjustment (NEC 404.5).

    International Residential Code, 2024 · Chapter 40, Devices and LuminairesRead the full text (opens UpCodes in a new tab)

  • E4001.2

    Snap-Switch Terminations

    • 15 and 20 A switch terminals not marked CO/ALR take copper or copper-clad aluminum only; push-in terminals are for 15 A circuits and 14 AWG solid copper unless listed otherwise.

    International Residential Code, 2024 · Chapter 40, Devices and LuminairesRead 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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