Walking-Working Surface Safety Regulations
Generally, employers are required to keep all walking-working surfaces safe for employees, visitors, and patrons. There is a specific OSHA (Occupational Safety and Health Administration) regulation which addresses this safety issue:
29 CFR 1910.22(a)(3): Walking-working surfaces are maintained free of hazards such as sharp or protruding objects, loose boards, corrosion, leaks, spills, snow, and ice.