US lawOklahomaRegulationsTitle 310 — OKLAHOMA STATE DEPARTMENT OF HEALTHChapter 257310:257-11-19OAC 310:257-11-19Outdoor walking and driving surfaces, graded to drainLast amended: 2006Year: 2026Length: 10 wordsOfficial source Cite as Okla. Admin. Code § 310:257-11-19Exterior walking and driving surfaces shall be graded to drain.PreviousOAC 310:257-11-18NextOAC 310:257-11-20