US lawArizonaRegulationsTitle 18 — Environmental QualityChapter 8 — Department of Environmental Quality - Hazardous Waste ManagementR18-8-621R18-8-621R18-8-621. ExpiredExpiredLast amended: 2000Length: 2 wordsOfficial source Cite as Ariz. Admin. Code § R18-8-621R18-8-621. ExpiredPreviousR18-8-620NextR18-8-701