(1) Whenever materials are dropped more than 20 feet to any point lying outside the exterior walls of the building, you must use an enclosed chute of wood, or equivalent material. For the purpose of this subsection, an enclosed chute is a slide, closed in on all sides, through which material is moved from a high place to a lower one.

(2) When debris is dropped without the use of chutes, the area onto which the material is dropped must be completely enclosed with barricades not less than 42 inches high and not less than 20 feet back from the projected edge of the opening above. You must post signs warning of the hazard of falling materials at each level. Removal must not be permitted in this lower area until debris handling ceases above.

(3) You must remove all scrap lumber, waste material, and rubbish from the immediate work area as the work progresses.

(4) Disposal of waste material or debris by burning must comply with local fire regulations.

(5) You must keep all solvent waste, oily rags, and flammable liquids in fire resistant covered containers until removed from the worksite.