(225 ILCS 705/1.22)
Sec. 1.22. "Tag-line" means a nylon line of at least one quarter inch thickness that has mechanical clips or other suitable connecting devices incorporated therein that are spaced between 3 feet and 5 feet apart that allow a group of persons underground to attach themselves together.
(Source: P.A. 94-1041, eff. 7-24-06.)