US lawWashingtonRegulationsTitle 296 — LABOR AND INDUSTRIES, DEPARTMENT OFChapter 296-150R — RECREATIONAL VEHICLES296-150R-0320WAC 296-150R-0320WAC 296-150R-0320. How do I apply for design-plan approval?Last amended: 1996Year: 2026Length: 11 wordsOfficial source Upon request, we will send you a design-plan approval request form.PreviousWAC 296-150R-0315NextWAC 296-150R-0330