Answer: The title for a major OSHA is "walking and working surfaces" instead of " floors" is because walking and working surfaces includes horizontal and vertical surfaces such as floors, roofs, stairs, ladders, elevated walk ways, and use of falls protection systems. It is not limited to only floors therefore it cannot be titled as "floors".
Step-by-step explanation:
10 different walking and working surfaces includes
1. Floors
2.stairs
3. Roofs
4. Ladders
5. Ramps
6. Scaffold
7. Elevated walk ways
8. Harness belts
9. Rescue equipment
10. Safety lineyards