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LOCKOUT/TAGOUT

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Subpart J General Environmental Controls

1910.147 – The control of hazardous energy

• Lockout/Tagout

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Outline

Scope, Application, Purpose Definitions Energy Control Program Energy Control Procedure Material and Hardware Periodic Inspection Training and Communication

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Scope

Scope– Servicing and maintenance of machines and

equipment where . . . • Unexpected energization or

• Start up or

• Release of stored energy

Could Cause Injury To Employees

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Scope

Exceptions:– Construction, agriculture, maritime– Electric utilities– Electric utilization installations (Subpart S)– Oil & gas well drilling & servicing

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Application

Control of Energy Normal production operations not

covered unless . . . – Remove or bypass a guard or safety device– Part of body is in point of operation

Must Provide Alternative Protection

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Application

Exceptions:– Cord & plug connected electric equipment

• Only energy source

• Person performing work – exclusive control

– Hot tap operations – transmission & distribution systems for:

• Gas, steam , water or petroleum – Pressurized pipelines where continuity of service is

essential

• Alternative protection is still essential

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Purpose

Requires Employers To:– Establish a program– Utilize procedures

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Definitions

Employees– Authorized

• Person who uses lockout/tagout

Affected • Person who operates or uses machine where

lockout/tagout is being performed or

• Works in area

Other• All “other” employees

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Definitions

Energized– Connected to energy source– Contains residual or

stored energy

Energy Source– Electrical, mechanical, hydraulic,

pneumatic, chemical, thermal, or other energy

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Energy Control Program

Energy Control Procedures

Periodic Inspections

Employee Training

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Lockout or Tagout?

If energy isolating device cannot be locked out:– Tagout

If energy isolating device can be locked out:– Lockout or– Tagout

• Attach at same location as lockout• Provide equivalent level of safety as lockout

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After January 2, 1990 . . .

Whenever a replacement or major repair, renovation or modification or new

machines or equipment are installed:

Energy Isolating devices shall be designed to accept a

lockout device!

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Energy Control Procedure Develop, document and utilize Exceptions to documentation (all must exist):

– No potential for stored or residual energy after shut down

– Single energy source – readily identified & isolated– Locking out will completely deenergize equipment– Equipment isolated from energy source during work– Single lockout device is needed– Lockout device under exclusive control of worker– Work does not create hazard for other employees– Employer – no accidents utilizing this exception

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Energy Control Procedures

Purpose of procedure Procedural steps for shutting down,

isolating, blocking an securing Procedural steps for placement, removal

and transfer of lockout/tagout devices– Who’s responsible?

Requirements for verification

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Materials and Hardware Provided by Employer

– Locks, tags, chains, wedges, key blocks, adapter pins, self-locking fasteners etc.

Not used for any other purpose

Durable Standardized

– Color shape or size Substantial Identifiable

– Employee– Tagout – warning such as Do Not Start

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Periodic Inspection At least annually Ensures procedure and requirements

of standard are being met Conducted by authorized

employee– Not the one utilizing energy – control procedures

Correct deviations or inadequacies Include interview with authorized

and affected

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Periodic Inspection Certification Identify machine or equipment utilizing

lockout/tagout Date of inspection Employees included in inspection Person performing inspection

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Training

Must ensure purpose and function of program are understood by employee

Must ensure the knowledge and skills required for safe application, usage, and removal of energy controls are acquired by employee

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Authorized1. Recognition of

hazardous energy sources

2. Type and magnitude of energy available

3. Methods and means for energy isolation & control

4. Limitations of tags

Affected1. Purpose & use of energy

control procedure2. Limitations of tags

Other1. Knowledge of procedure2. Prohibited to restart or

reenergize3. Limitations of tags

Training

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Retrain

Employee Retraining

Change in job assignment Change in machines, equipment Change in processes present a new hazard Change in energy control procedures Whenever periodic inspection shows

deviations or inadequacies Must reestablish employee proficiency Certify

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Application of Energy Control

Preparation for shutdown Machine or equipment shutdown Machine or equipment isolation Apply lockout/tagout devices Stored energy Verification

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Release from Lockout/Tagout

Check machine Notify employees (check area for

employees) Removed by person who applied device

– Removal by person other than one who applied device

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Outside Contractors

Inform each other of respective lockout/tagout procedures

On-site employer ensure employees understand and comply with restrictions and prohibitions of outside employer’s energy control program

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Group Lockout/Tagout

Every authorized employee working on equipment– One person – one lock– Each person remove only

his/her lock when done working

Responsibility given to one authorized employee to coordinate

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Shift Changes

Specific procedures must be utilized– Ensure continuity of lockout/tagout– Provisions for orderly transfer of lockout/tagout

devices

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Enforcement of Procedures

Important!!!

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