When working from elevations, it is crucial to implement effective fall protection measures to ensure worker safety. Here are some key safety requirements and practical advice 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, a back-up personal fall arrest system should be used if the worker's center of gravity extends beyond an edge or if the work surface presents a slipping or tripping hazard [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. Procedures in Place of Fall Protection Equipment: If it is not reasonably practicable to use fall protection systems, procedures can be developed and used in specific situations such as emergency repairs or roof inspections. These procedures must be documented and should not expose workers to additional hazards [3].

5. Ladders and Access: When moving between levels more than 450 millimeters apart, a fixed ladder, stairway, or ramp should be installed [4].

6. Scaffold Safety: Ensure that scaffolds are equipped with guardrails and are regularly inspected for damage. Workers should use personal fall arrest systems when working from heights on scaffolds [5].

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