US lawWashingtonRegulationsTitle 51 — ENTERPRISE SERVICES, DEPARTMENT OF (BUILDING CODE COUNCIL)Chapter 51-51 — STATE BUILDING CODE ADOPTION AND AMENDMENT OF THE 2021 EDITION OF THE INTERNATIONAL RESIDENTIAL CODE51-51-008WAC 51-51-008WAC 51-51-008. ImplementationLast amended: 2024Year: 2026Length: 24 wordsOfficial source The International Residential Code adopted by chapter 51-51 WAC shall become effective in all counties and cities of this state on March 15, 2024.PreviousWAC 51-51-007NextWAC 51-51-0102