US lawWashingtonRegulationsTitle 296 — LABOR AND INDUSTRIES, DEPARTMENT OFChapter 296-56 — SAFETY STANDARDS—LONGSHORE, STEVEDORE AND WATERFRONT RELATED OPERATIONS296-56-60021WAC 296-56-60021WAC 296-56-60021. Signals displayed by each maintenance crewLast amended: 2026Year: 2026Length: 15 wordsOfficial source Employers must have each maintenance crew display and remove its own set of blue signals.PreviousWAC 296-56-60019NextWAC 296-56-60023