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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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  • E3802.4

    In Unfinished Basements and Crawl Spaces

    • In unfinished basements and crawl spaces, NM/SE cable of 2-#6 or 3-#8 and larger may run on joist bottoms; smaller goes through bores or running boards; wall runs may be sleeved, sheath 1/4 in into the box and secured within 12 in (NEC 334.15(C)).

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

  • E3701.5

    Multiwire Branch Circuits

    • Multiwire branch circuit conductors start at the same panel and serve only line-to-neutral loads or one appliance unless a common-trip breaker opens all of them (NEC 210.4(A), (C)).

    International Residential Code, 2024 · Chapter 37, Branch Circuit and Feeder RequirementsRead the full text (opens UpCodes in a new tab)

  • E4205.5

    Nonmetallic Conduit

    • Nonmetallic conduit from a forming shell to its box carries an 8 AWG insulated copper bonding jumper, potted at the shell (NEC 680.23(B)(2)(b)).

    International Residential Code, 2024 · Chapter 42, Swimming PoolsRead the full text (opens UpCodes in a new tab)

  • E3803.11

    Under Buildings

    • Wiring under a building is in raceway, except MC cable listed for direct burial with a moisture-proof covering (NEC 300.5(C)).

    International Residential Code, 2024 · Chapter 38, Wiring MethodsRead 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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