If your employees service or maintain machines where the unexpected startup, energization, or the release of stored energy could cause injury, the standard can meet your lockout/tagout requirements. The standard applies to all sources of energy, including, but not limited to: mechanical, electrical, hydraulic, pneumatic, chemical, and thermal energy.

The standard does not cover electrical hazards from work on, near, or with conductors or equipment in electric utilization (premise wiring) installations, which are outlined by Subpart S of the general industry regulations. The specific lockout and tagout provisions for electrical shock and burn hazards are found at 1910.333. Controlling hazardous energy in installations for the exclusive purpose of power generation, transmission, and distribution, including related equipment for communication or metering, is covered by 1910.269.

The standard also does not cover the agriculture, maritime industries, or oil and gas well drilling and servicing. Other standards concerning the control of hazardous energy, however, apply in many of these industries/situations.