Equipment excluded from scope of chapter.

(b) Articulating or knuckle-boom truck cranes that deliver material to a construction site are excluded from the scope of this chapter when used to (1) transfer materials from the truck crane to the ground without arranging the materials in a particular sequence for hoisting, or (2) transfer building supply sheet goods or building supply packaged materials including, but not limited to, sheets of sheetrock, sheets of plywood, bags of cement, sheets or packages of roofing shingles and rolls of roofing felt from the truck crane onto a structure, using a fork or cradle at the end of the boom, but only when the truck crane is equipped with a properly functioning automatic overload prevention device. (c) The exclusion set forth in subsection (b) of this section does not apply when (1) the articulating or knuckle-boom crane is used to hold, support or stabilize the material to facilitate a construction activity, such as holding material in place while it is attached to the structure, (2) the material being handled by the articulating or knuckle-boom crane is a prefabricated component including, but not limited to, precast concrete members or panels, roof trusses, prefabricated building sections such as floor panels, wall panels, roof panels, roof structures or similar items, (3) the material being handled by the crane is a structural steel member such as joists, beams, columns and steel decking or a component of a systems-engineered metal building, or (4) the activity is not otherwise excluded under subsection (b) of this section.