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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 1,053 sections for San Antonio, TX, the 2024 IRC

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  • G2414.9.1

    Pipe Joints

    • Schedule 40 and heavier pipe is threaded, flanged, brazed, welded or LC4 press-fit; thinner pipe skips threading; brazing above 1,000 F with 0.05 percent phosphorus max.

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

  • G2427.10.5

    Clearance

    • Connector clearances by appliance and material: single-wall 6 in for listed draft-hood appliances, 9 in for conversion burners and Type L appliances, 18 in for other low-heat, 36 in medium-heat.

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

  • M2105.25

    Labeling and Marking

    • Loop piping is tagged where it enters the building as a ground-source heat pump loop, naming any antifreeze and its concentration.

    International Residential Code, 2024 · Chapter 21, Hydronic PipingRead the full text (opens UpCodes in a new tab)

  • M2005.2

    Prohibited Locations

    • Fuel-fired water heaters can't be in storage closets; in bedrooms or bathrooms they sit in a sealed enclosure so they draw no room air, unless direct-vent.

    International Residential Code, 2024 · Chapter 20, Boilers and Water HeatersRead 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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