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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 677 sections for San Antonio, TX, the 2024 IRC

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  • E3903.2

    Habitable Rooms

    • Every habitable room, kitchen and bathroom gets a wall-controlled lighting outlet near the entrance, not relying only on a battery; switched receptacles may substitute except in kitchens, laundry and bathrooms (NEC 210.70(A)(1)).

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

  • E3907.1.2

    Power Monitoring or Energy Management Equipment

    • Listed power-monitoring gear fills no more than 75%; small control wires are secured every 10 in, rated 600 V and 90°C (NEC 312.8(B)).

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

  • E3803.5

    Backfill

    • No rock, paving, cinders or corrosive backfill that can damage cables or raceways; use sand, boards or sleeves where needed (NEC 300.5(F)).

    International Residential Code, 2024 · Chapter 38, Wiring MethodsRead the full text (opens UpCodes in a new tab)

  • E3901.2.2

    Wall Space

    • A wall space is any unbroken run 2 ft or wider, including around corners, fixed exterior panels and fixed dividers like railings and bar counters (NEC 210.52(A)(2)).

    International Residential Code, 2024 · Chapter 39, Power and Lighting DistributionRead 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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