WAC 296-874-30010. Make sure suspended scaffold support devices meet these requirements

You must make sure suspended scaffold support devices, such as cornice hooks, roof hooks, roof irons, parapet clamps, or similar devices, are: (1) Made of steel, wrought iron, or other material of equivalent strength; (2) Supported by bearing blocks; (3) Prevented from moving by using tiebacks. Reference: 1. For outrigger beam requirements, go to WAC 296-874-30004 ; 2. For tieback requirements go to WAC 296-874-30008 .