US lawWashingtonRegulationsTitle 296 — LABOR AND INDUSTRIES, DEPARTMENT OFChapter 296-307 — SAFETY STANDARDS FOR AGRICULTURE296-307-43513WAC 296-307-43513WAC 296-307-43513. Systems used on commercial vehiclesLast amended: 2020Year: 2026Length: 11 wordsOfficial source Commercial vehicles must use either vapor withdrawal or liquid withdrawal systems.PreviousWAC 296-307-43511NextWAC 296-307-43515