WAC 296-874-40022. Meet these requirements when using form scaffolds and carpenter's bracket scaffolds

(1) You must secure folding-type metal brackets that have been extended for use, with: (a) Bolts; or (b) Locking-type pins. (2) You must make sure wooden-bracket form scaffolds are an integral part of the form panel. (3) You must attach each bracket, other than those for wooden bracket-form scaffolds, to the supporting formwork or structure by using one or more of the following: (a) Nails; (b) A metal stud attachment device; (c) Welding; (d) Hooking over a secured structural supporting member, with the form wales either: (i) Bolted to the form; or (ii) Secured by snap ties or tie bolts extending through the form and securely anchored. (e) For carpenters' bracket scaffolds only, using a bolt extending through to the opposite side of the structure's wall.