US lawArizonaRegulationsTitle 18 — Environmental QualityChapter 8 — Department of Environmental Quality - Hazardous Waste ManagementR18-8-257R18-8-257R18-8-257. ReservedReservedLength: 2 wordsOfficial source Cite as Ariz. Admin. Code § R18-8-257R18-8-257. ReservedPreviousR18-8-256NextR18-8-258