Use of non-flowable material for counter weights in rigging outrigger beams.

OSHA interpretation letter responding to a query about counterweights for outrigger beams on two-point suspension scaffolds. It states that 29 CFR 1926.451(a)(2) requires sound, rigid footings or anchorages, that counterweighting is prohibited for other suspension scaffold types, and that flowable materials like sand bags are hazardous.