US lawCaliforniaStatutesCode labDivision 5Part 3Chapter 1Article 47257Cal. LAB § 7257Cal. LAB § 7257Last amended: 1970Year: 2025Length: 21 wordsOfficial source Wire mesh or plywood (exterior grade) shall be used to cover openings adjacent to columns where planks do not fit tightly.PreviousCal. LAB § 7256NextCal. LAB § 7258