Section R. 408.40841 - Synthetic webbing (nylon, polyester, and polypropylene)Rule 841.
(1) Employers shall use natural- and synthetic-fiber rope slings that have permanently affixed and legible identification markings that state the rated capacity for the type or types of hitch or hitches used and the angle upon which it is based, type of fiber material, and the number of legs if more than 1.(2) Rated capacity shall not be exceeded.(3) Synthetic webbing shall be of uniform thickness and width and selvage edges shall not be split from the webbing's width.(4) Employers shall not use natural- and synthetic-fiber rope slings with loads in excess of the rated capacities, such as working load limits, indicated on the sling by permanently affixed and legible identification markings prescribed by the manufacturer.Mich. Admin. Code R. 408.40841