This document outlines Occupational Safety and Health regulations regarding walking and working surfaces from the OSHA Subpart D standards. It discusses requirements for keeping all areas clean, dry, clear of obstructions and properly marked. Specific standards are identified for floor openings, wall openings, stairs, guardrails, and the use of ladders. Maintaining safe aisles, passageways, storage areas and eliminating slip/trip hazards are emphasized for healthcare work sites.