When working from elevations, it is crucial to implement effective fall protection measures to ensure worker safety. Here are some key safety requirements and practices based on the provided documents:

1. Fall Protection Systems: Workers on walking/working surfaces 6 feet (1.8 meters) or more above lower levels must be protected from falling by using guardrail systems, safety net systems, or personal fall arrest systems [1].

2. Work Positioning Systems: If a worker uses a work positioning system, the vertical free-fall distance in the event of a fall should be restricted to 600 millimeters or less. Additionally, if the work surface presents a slipping or tripping hazard, a back-up personal fall arrest system should be used in combination with the work positioning system [2].

3. Control Zones: When using control zones, ensure they are at least 2 meters wide from the unguarded edge and clearly marked with an effective raised warning line or another equally effective method if a worker is working within 2 meters of the control zone [2].

4. Guardrails and Covers: For open-top bins, hoppers, vats, pits, or other open-top enclosures, ensure they are covered with a grating, screen, or other covering to prevent falls, or provide a walkway with highly visible guardrails [3].

5. Competency and Training: Ensure that workers performing tasks at heights are competent and trained in the use of fall protection systems and understand the procedures to minimize fall hazards [2].

6. Inspection and Maintenance: Regularly inspect all fall protection equipment and systems to ensure they are in good working condition and meet safety standards [4].

By adhering to these guidelines, you can significantly reduce the risk of falls and ensure a safer working environment when working from elevations.