PDFWAC 296-874-30036
Meet these requirements when using interior hung scaffolds.
(1) You must suspend the scaffold only from the roof structure or other structural member, such as ceiling beams.
(2) You must inspect the overhead supporting members and check to make sure they're strong enough before erecting the scaffold.
(3) You must connect suspension ropes and cables to the overhead supporting members by:
(a) Shackles, clips, or thimbles; or
(b) Other means that meet equivalent criteria, such as strength and durability.