{"format":"cadcraft-library-item","format_version":1,"uuid":"18ed658c-a531-40e7-bcc6-8bf466222b91","version":3,"name":"Washington: Washington State Residential Code (chapter 51-51 WAC)","kind":"regulation","category":"regulations/building","description":"Adopts IRC 2021 (Washington State Building Code Council; Chapter 51-51 WAC). State amendments to the checked rules: openable area, share of floor area. Amendments were researched for stairs, ceiling height, light and ventilation only; every other rule (room size, egress, escape openings, electrical, alarms) is the base code's. Entered 2026-10-27 (research confidence: high); not yet reviewed by a…","maker":"","model":"","ifc":{"class":"IfcControl","predefined":"NOTDEFINED"},"plan":{"layers":[],"entities":[]},"body":null,"params":{},"regulation":{"format":"cadcraft-regulation-pack","version":1,"id":"us-wa","name":"Washington: Washington State Residential Code (chapter 51-51 WAC)","jurisdiction":{"country":"US","level":"state","region":"US-WA","name":"Washington"},"base":"us-irc-2021","edition":"IRC 2021 as adopted, 2024-03-15","in_force":"2024-03-15","review":{"state":"draft","note":"Adopts IRC 2021 (Washington State Building Code Council; Chapter 51-51 WAC). State amendments to the checked rules: openable area, share of floor area. Amendments were researched for stairs, ceiling height, light and ventilation only; every other rule (room size, egress, escape openings, electrical, alarms) is the base code's. Entered 2026-10-27 (research confidence: high); not yet reviewed by a…"},"authority":"adopted-law","source":{"name":"Washington State Building Code Council, Chapter 51-51 WAC","url":"https://app.leg.wa.gov/wac/default.aspx?cite=51-51","date":"2023-11-15","checked":"2026-10-27"},"maker":null,"price":null,"criteria":[],"tables":[],"rules":[{"id":"room.vent.min","remove":true,"note":"Washington deletes the 4% openable-area requirement and requires whole-house and local exhaust mechanical ventilation instead (WAC 51-51-0303)."}]},"source_attrs":{},"license":{"id":"CC0-1.0","holder":"CadCraft","attribution":"“Washington: Washington State Residential Code (chapter 51-51 WAC)” by CadCraft (https://app.leg.wa.gov/wac/default.aspx?cite=51-51), CC0 (https://creativecommons.org/publicdomain/zero/1.0/)","url":"https://creativecommons.org/publicdomain/zero/1.0/"},"provenance":{"library":"librarycraft","item":"18ed658c-a531-40e7-bcc6-8bf466222b91","version":3,"sha256":"571ecc19e8389361481b656d138c690b1b607d3d61d17bb4163efe4e2836b06c","source_file":"us-wa.json","source_sha256":"23f9a8d88fae5fe299e8b1f31de32b36da8b787d211c27850b68131e17977db0","published_at":"2026-10-27T02:07:28Z"}}