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• E3607.3.2

  Grounded Conductor, Existing Premises

  • Older installs that grounded the neutral at a second building may stay if there's no EGC, no parallel metal path and no ground-fault protection, with the neutral sized to the larger of E3704.3 or E3908.13 (NEC 250.32(B)(1) Exc).

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

• E3602

  Service Size and Rating

  International Residential Code, 2024 · Chapter 36, ServicesRead 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)

• E3501

  General

  International Residential Code, 2024 · Chapter 35, Electrical DefinitionsRead the full text (opens UpCodes in a new tab)

• E3902.1

  Bathroom Receptacles

  • Bathroom receptacles get GFCI protection (NEC 210.8(A)(1)).

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

• E3611.6

  Protection of Ground Clamps and Fittings

  • Ground clamps are approved for exposure or protected by location or a metal, wood or similar cover (NEC 250.10).

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

• E3703

  Required Branch Circuits

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

• E3705

  Conductor Sizing and Overcurrent Protection

  International Residential Code, 2024 · Chapter 37, Branch Circuit and Feeder RequirementsRead 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.