Lockout/tagout (LOTO) procedures are used to isolate hazardous energy sources during equipment service and maintenance to prevent injury. LOTO involves shutting off power at the source, applying locks and tags to energy-isolating devices to warn others not to reenergize equipment, and dissipating any stored energy. The Occupational Safety and Health Administration's Control of Hazardous Energy standard requires training and procedures for affected and authorized employees to safely isolate energy sources before performing service or maintenance on machines and equipment.

1. Control of Hazardous Energy
(Lockout/Tagout) 29 CFR 1910.147

2. What Is Lockout/Tagout?
 Referred to as LOTO
 Blocks flow of energy from power source
to the equipment
 Provides means of warning (tag)

3.  29 CFR 1910.147–Control of Hazardous Energy
 Covers operators and service personnel
 Requires training of employees
Regulatory Requirements

4.  Locks
 Blocks
 Chains
 Multilock hasps
 Wheel valve covers
 Ball valve covers
Types of Lockout Devices

5. Requirements For
Lockout/Tagout Devices
They must be:
 Durable
 Standardized
 Substantial
 Identifiable

6. Energy Sources
 Electricity
 Hydraulic
 Pneumatic
 Steam
 Thermal
 Chemical

7. Typical Equipment
Requiring LOTO
 Presses
 Saws
 Pumps
 Production
Equipment
 Trash
Compactors
 Ovens

8. When Must LOTO Be Used?
When servicing or maintaining equipment where:
 Hazardous energy exists
 Unexpected start-up could occur
 Either of these could harm an employee

9. LOTO Shall Be Used When:
 Employees are required to remove or
bypass a safety device
 Employees are required to place any part
of their body in harm’s way
 Employees are exposed to hazardous
energy

10. LOTO Exceptions
 Work where hazardous energy does
not exist
 Activities performed during routine
production processes
 Work on cord-controlled devices
 Hot tap operations where shutdown
is not feasible

11. Typical LOTO Procedures
 Performing a shutdown
 Isolating equipment
 Applying and removing lockout devices
 Safely releasing stored energy

12. Affected Employees
Employees who
 Operate
 Work around
 Occasionally adjust equipment that is
subject to LOTO

13. Authorized Employee
 Maintains equipment
 Services equipment
 Is trained to use LOTO

14. Company Responsibilities
 Ensure de-energization of equipment
 Ensure employee awareness
 Provide appropriate levels of training
 Review program effectiveness
 Maintain and revise program
 Administer appropriate disciplinary actions

15. Affected Employee
Responsibilities
 Notify maintenance, etc., when equipment
needs repair or adjustment
 Leave all LOTO devices in place
 Verify equipment is safe to operate
following LOTO
 Follow all safety rules while operating the
equipment

16. Authorized Employee
Responsibilities
 Repair or service equipment as needed
 Ensure that all energy sources are locked
out
 Test equipment to verify residual energy is
dissipated
 Place a “Danger—Do Not Operate” tag on
equipment

17. Authorized Employee
Responsibilities (cont.)
 Obtain assistance
when necessary
 Remove locks and/or
tags following LOTO
 Coordinate
multi-shift repair

18. How to Perform LOTO Safely
 Follow company safety procedures for LOTO
 Refer to procedures on how to lockout specific
equipment
 Keep everyone informed when equipment is
repaired or serviced
 Stay alert
 Use common sense