US lawArizonaRegulationsTitle 18 — Environmental QualityChapter 12 — Department of Environmental Quality - Underground Storage TanksR18-12-709R18-12-709R18-12-709. ExpiredExpiredLast amended: 2017Length: 2 wordsOfficial source Cite as Ariz. Admin. Code § R18-12-709R18-12-709. ExpiredPreviousR18-12-708NextR18-12-710