OSHA Control of Hazardous Energy and Lock Out / Tag Out

Introduce the control of hazardous energy, review applicable standards, identify energy types and sources, and cover arc flash, arc blast, and lock out tag out.

Identify hazardous energy from electrical, mechanical, hydraulic, pneumatic, chemical, and thermal sources. Understand how unexpected release of stored energy during servicing can cause serious injuries or death.

Identify regulatory standards that protect workers, including OSHA 29 CFR Subpart S and Subpart K, and NFPA 70 of the National Electric Co.

Explore hydraulic, radiological, and electrical energy sources and their hazards, including stored pressure, radiation effects, arc flash, and arc blast, with safety guidance for control and lockout.

Explore chemical energy released by reactions, including heat and pressure hazards such as fire or explosions; examine pneumatic energy from compressed air and thermal energy from temperature-driven molecular motion.

Explore the six energy types—pneumatic, chemical, electrical, hydraulic, radiological, and thermal—with practical examples to inform hazard control and lockout tag out practices.

Explain how employers establish energy control procedures, train employees, and conduct periodic inspections to lockout and tagout equipment before servicing.

show how to use multiple lockout devices and tags on shared equipment, including valve locking devices, to prevent energization; tags alone do not secure the system.

Explore OSHA's lockout/tagout regulations for hazardous energy, including training requirements for authorized and affected employees, energy isolation methods, and the limits of tag systems versus full lockout.