US lawWashingtonRegulationsTitle 51 — ENTERPRISE SERVICES, DEPARTMENT OF (BUILDING CODE COUNCIL)Chapter 51-11R — STATE BUILDING CODE ADOPTION AND AMENDMENT OF THE 2021 EDITION OF THE INTERNATIONAL ENERGY CONSERVATION CODE, RESIDENTIAL51-11R-40510WAC 51-11R-40510WAC 51-11R-40510. Section R405.1 — ScopeLast amended: 2024Year: 2026Length: 27 wordsOfficial source R405.1 Scope. This section establishes criteria for compliance using total building performance analysis. Such analysis shall include heating, cooling, mechanical ventilation, and service water heating energy only.PreviousWAC 51-11R-40410NextWAC 51-11R-40520