California Code of Regulations
Title 8 - Industrial Relations
Division 1 - Department of Industrial Relations
Chapter 4 - Division of Industrial Safety
Subchapter 4 - Construction Safety Orders
Article 3 - General
Section 1513 - Housekeeping

(a) During the course of construction, alteration, or repairs, form and scrap lumber with protruding nails and all other debris shall be kept reasonably cleared from work areas, passageways, and stairs in and around buildings or other structures.

(b) The ground area within 6 feet of a building under construction shall be reasonable free from irregularities wherever it is practicable to attain this condition by grading or similar methods, and open ditches shall be bridged to provide passageways at convenient places.

(c) Material storage areas and walkways on the construction site shall be maintained reasonably free of dangerous depressions, obstructions, and debris.

(d) Combustible debris accumulated within the building or structure shall be removed promptly during the course of construction. Safe means shall be provided to expedite such removal.

(e) Flammable or hazardous wastes shall be placed in covered containers separate from the normal debris.

(f) All waste shall be disposed of at intervals determined by the rate of accumulation and capacity of the job site container.

(g) Waste, materials, or tools shall not be thrown from buildings or structures to areas where employee(s) may be located, unless the area where the material falls is guarded by fences, barricades, or other methods/means to prevent employee(s) from entering and being struck by falling objects. Signs shall be posted to warn employees of the hazard.