US lawWashingtonRegulationsTitle 296 — LABOR AND INDUSTRIES, DEPARTMENT OFChapter 296-52 — SAFETY STANDARDS FOR POSSESSION, HANDLING, AND USE OF EXPLOSIVES296-52-67190WAC 296-52-67190WAC 296-52-67190. Initiation systemsLast amended: 2002Year: 2026Length: 10 wordsOfficial source Water resistant initiation systems must be used for underwater blasting.PreviousWAC 296-52-67185NextWAC 296-52-67195