US lawArizonaRegulationsTitle 18 — Environmental QualityChapter 8 — Department of Environmental Quality - Hazardous Waste ManagementR18-8-221R18-8-221R18-8-221. ReservedReservedLength: 2 wordsOfficial source Cite as Ariz. Admin. Code § R18-8-221R18-8-221. ReservedPreviousR18-8-220NextR18-8-222