US lawWashingtonRegulationsTitle 296 — LABOR AND INDUSTRIES, DEPARTMENT OFChapter 296-150F — FACTORY-BUILT HOUSING AND COMMERCIAL STRUCTURES296-150F-0415WAC 296-150F-0415WAC 296-150F-0415. Who approves addendums to design plans approved by the department?Last amended: 1996Year: 2026Length: 18 wordsOfficial source You must have us approve an addendum to a design plan, if we initially approved your design plan.PreviousWAC 296-150F-0410NextWAC 296-150F-0420