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DOCUMENT ID: |
6111
Appendix T1 Administrative
Control using Locks and
Tags Procedure |
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1.0
Purpose
This appendix
contains the guidelines for implementing administrative
controls relating to locks and/or tags to restrict operation, access,
equipment use, or tampering for reasons other than maintenance or service
work. Activities that require personal
protection during maintenance and service work are described in ES&H
Manual Chapter 6110 Lock, Tag, Try (LTT) Policy.
2.0
Process Steps
2.1
The following steps are
used when applying administrative locks and/or tags:
Step 1: Clearly identify the configuration of the equipment or system to be controlled
Do not proceed until you are certain of all the hazards associated
with the operation of the equipment or system and the proper configuration for
control. Information regarding the item
is available from many sources including:
·
written procedures,
·
blueprints,
·
system diagrams,
·
operating manuals, and
·
owners of the
equipment
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Step 2: Notify Others
The group/individual authorizing the control is responsible for appropriately coordinating with all affected groups and/or employees before locking or tagging the equipment.
Step 3: Configuration Control
Use Administrative locks and/or tags that:
·
Are clearly distinguishable
from those used for maintenance or service work (LTT), and
·
Display the
responsible individual’s name (or their working group); unless ownership is
obvious. (Names of all individuals or
groups authorized to modify the administrative lock and/or tag are to be
noted).
·
Do not use maintenance locks or tags.
DO NOT USE THESE:
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Step 4: Affix Administrative Lock and/or Tag
The equipment or system is then placed in the intended state and
an appropriate administrative lock and/or tag is attached:
·
Locking devices must:
o
Prevent unauthorized
individuals from inadvertently changing the intended configuration.
o
Use a multi-lock hasp
if another LTT
device is to be applied later for maintenance or service work.
· Tags are:
o
Placed so they are
immediately apparent to anyone who might attempt to operate the device, and
o
Attached by a durable
means (for example: cable tie)
Step 5: Verify Effectiveness
·
When appropriate, a
qualified individual verifies the effectiveness of the administrative
control to determine that the equipment is in the desired state.
Step 6: Removal of Administrative Locks and/or Tags
·
An authorized individual
notifies all affected parties prior to the action.
·
When all affected
people are ready, an authorized individual may remove the administrative lock
and/or tag.
2.2
Transition
from Administrative
Lock and/or Tag to LTT
·
Administrative locks
and/or tags securing equipment must be replaced or augmented with personal
protection (LTT)
during maintenance or service work to ensure all energy sources are secure in
accordance with ES&H Manual Chapter 6110 Lock, Tag, Try
(LTT) Policy.
2.3
Special
Administrative
Lock or Tag Removal[1]
·
Use ES&H Manual Chapter
6110 Appendix T2 Special Lock and Tag
Removal Procedure.
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ISSUING
AUTHORITY |
APPENDIX
AUTHOR |
APPROVAL
DATE |
EFFECTIVE
DATE |
EXPIRATION
DATE |
REV. |
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ESH&Q Division |
06/08/09 |
06/08/09 |
06/08/12 |
0 |
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[1] (Locks are never removed by unauthorized persons. ES&H Manual Chapter 6110 Appendix T2 Special Lock and Tag Removal Procedure provides steps by which an individual becomes authorized.)