Which OSHA standard requires electrical equipment to be labeled and remain locked-off until it can be safely energized?

• A. Lockout/Tagout
• B. Hazard Communication
• C. Electrical Safety Act
• D. Confined Space

Answer: (A)

Preventing unexpected energization of equipment during maintenance is achieved by controlling hazardous energy. Lockout/Tagout is the OSHA standard that requires energy sources to be isolated, de-energized, and physically locked out or tagged to prevent energizing until a qualified person verifies it’s safe. Equipment remains locked and labeled with information about the lockout and who applied it, until it’s confirmed safe to re-energize. Other options address different safety topics—Hazard Communication covers chemical hazards, Confined Space covers entry into restricted spaces, and the Electrical Safety Act is not the specific OSHA energy-control standard.