WAC 296-155-683. Concrete finishing

(1) Scaffolds for use of cement finishers must comply with the requirements of chapter 296-874 WAC, Scaffolds. (2) Where grinders, chippers, and other equipment is used which creates a thrust force while working on scaffolding, you must securely tie such scaffold to a structure or held in with weighted drop lines. (3) You must provide grinding and dressing operations carried on within closed rooms, stairwells, elevator shafts, etc., with forced air ventilation. (4) Grinding machine operators must wear respirators whenever machines are in operation or where dust hazard exists. (5) Eye protection must be worn by workers engaged in grinding, chipping, or sacking concrete as required by WAC 296-155-215 .