OSHA 4474 Fact Sheet – Establishing Boundaries Around Arc Flash Hazards

This OSHA Fact Sheet explains how to establish Limited, Restricted, and Arc Flash boundaries to protect workers near energized equipment. It helps safety professionals apply NFPA 70E principles to reduce shock and burn risks.

• Understand the difference between arc flash and electric shock boundaries
• Learn who may cross each boundary and under what conditions
• Apply voltage-based rules for safer approach distances