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• G2421.3

  Venting of Regulators

  • Regulators needing vents are vented outdoors, protected from water and insects, unless a listed vent limiter is used.

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

• E3706

  Panelboards

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

• G2404.10

  Auxiliary Drain Pan

  • Category IV condensing appliances get an auxiliary pan per M1411 where a blockage could cause damage, unless they shut down on blockage.

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

• P3003.13.4

  Plastic Pipe or Tubing to Other Piping Material

  • Different plastics join with adapters, except one ASTM D3138 solvent joint between ABS and PVC at the drain-to-sewer transition; plastic to cast iron hub is caulked or compression.

  International Residential Code, 2024 · Chapter 30, Sanitary DrainageRead the full text (opens UpCodes in a new tab)

• R504

  Pressure Preservative-Treated Wood Floors (On Ground)

  International Residential Code, 2024 · Chapter 5, FloorsRead the full text (opens UpCodes in a new tab)

• R804

  Cold-Formed Steel Roof Framing

  International Residential Code, 2024 · Chapter 8, Roof-Ceiling ConstructionRead the full text (opens UpCodes in a new tab)

• R403.4

  Footings for Precast Concrete Foundations

  International Residential Code, 2024 · Chapter 4, FoundationsRead the full text (opens UpCodes in a new tab)

• R603.1.1

  Applicability Limits

  • Prescriptive steel walls cover buildings up to 60 x 40 ft, three stories, under 140 mph in B or C, and 70 psf snow; all exterior steel walls count as bearing.

  International Residential Code, 2024 · Chapter 6, Wall ConstructionRead 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.