US lawWashingtonRegulationsTitle 296 — LABOR AND INDUSTRIES, DEPARTMENT OFChapter 296-52 — SAFETY STANDARDS FOR POSSESSION, HANDLING, AND USE OF EXPLOSIVES296-52-67025WAC 296-52-67025WAC 296-52-67025. Age of explosivesLast amended: 2002Year: 2026Length: 14 wordsOfficial source The oldest explosive of the kind needed for a blast, must be used first.PreviousWAC 296-52-67020NextWAC 296-52-67030