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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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  • E3608.3

    Rod, Pipe and Plate Electrode Requirements

    • Rods, pipes and plates go below the permanent moisture level where practical, free of paint, and 6 ft from another system's electrodes; their sole jumper needn't exceed 6 Cu / 4 Al (NEC 250.53).

    International Residential Code, 2024 · Chapter 36, ServicesRead the full text (opens UpCodes in a new tab)

  • E4303.2.4

    Type CL2R Cables

    • Floor-to-floor or shaft runs use CL2R riser cable, though in one- and two-family dwellings CL2/CL3, plenum types and CL2X/CL3X under 1/4 in are fine (NEC 722.179(A)(2)).

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

  • E3705.2

    Correction Factor for Ambient Temperatures

    • For ambients other than 30°C (86°F), multiply ampacity by the temperature correction factor (NEC 310.15(B)(1)).

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

  • E4208.2

    Electric Water Heaters

    • Electric spa heaters are listed, split into 48 A loads protected at 60 A max, with circuits at 125% of nameplate (NEC 680.10).

    International Residential Code, 2024 · Chapter 42, Swimming PoolsRead 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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