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• P2804.3

  Pressure Relief Valves

  • Pressure relief valves mount in or close to the tank, open at 25 psi above system pressure but no higher than 150 psi or the tank's rating.

  International Residential Code, 2024 · Chapter 28, Water HeatersRead the full text (opens UpCodes in a new tab)

• P2901

  General

  International Residential Code, 2024 · Chapter 29, Water Supply and DistributionRead the full text (opens UpCodes in a new tab)

• P3008

  Backwater Valves

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

• P2722.1

  General

  • Supply valves and faucets meet ASME A112.18.1; drinking water fittings NSF 61 Section 9; flex connectors per P2906.7.

  International Residential Code, 2024 · Chapter 27, Plumbing FixturesRead the full text (opens UpCodes in a new tab)

• P3107

  Common Vent

  International Residential Code, 2024 · Chapter 31, VentsRead the full text (opens UpCodes in a new tab)

• P3111

  Combination Waste and Vent System

  International Residential Code, 2024 · Chapter 31, VentsRead the full text (opens UpCodes in a new tab)

• P3005.2.10

  Cleanout Access

  • Cleanouts aren't concealed (plenums, walls, floor-ceilings, below grade, low crawls under 24 in); wall cleanouts sit within 1-1/2 in of the finish, buried ones extend to grade, and floor plugs are flush.

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

• P2910.9

  Nonpotable Water Storage Tanks

  • Nonpotable storage tanks meet P2910.9.1 to 9.9.

  International Residential Code, 2024 · Chapter 29, Water Supply and DistributionRead 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.