US lawArizonaRegulationsTitle 18 — Environmental QualityChapter 12 — Department of Environmental Quality - Underground Storage TanksR18-12-311R18-12-311R18-12-311. RepealedRepealedLast amended: 2020Length: 2 wordsOfficial source Cite as Ariz. Admin. Code § R18-12-311R18-12-311. RepealedPreviousR18-12-310NextR18-12-312