TITLE:	ES&H Manual
DOCUMENT ID:	6110 Appendix T3 Group Lock, Tag, Try (LTT) Procedure

1.0 Purpose

This procedure provides members of a group a way to secure hazardous energy sources with protection equivalent to that provided by the individual procedure outlined in ES&H Manual Chapter 6110 Appendix T1 Lock, Tag, Try (LTT) Procedure.

2.0 Process Steps

Step 1: Review – Group LTT Coordinator(s):

· Review the job, equipment, and planned process with all affected groups. Prepare a Work Control Document per ES&H Manual 3310 Operational Safety Procedure Program.

· Ensure all potential sources of hazardous energy, including stored/residual energy, are known and understood.

· Coordinate the LTT with other system owners who may be affected by the work.

· Prepare a Group LTT Form for Multiple or Single Equipment.

· Post the Group LTT Form for Multiple or Single Equipment at the area of the group lockout device for the duration of the work.

Step 2: Isolate Energy Sources – Group LTT Coordinator(s):

· Identify, locate, and isolate all energy sources associated with the job.

· Apply the lockout mechanism devices to the identified energy-isolating devices.

· Perform the required tests to verify that all hazardous energy sources have been de-energized.

· Identify, locate, and prepare relief devices to ensure residual, stored or accumulated energy creates no hazard.

· Perform the required tests to verify that stored/residual energy has been drained from the system and will not re-accumulate.

· Record all energy-isolating and energy-draining devices on the Group LTT Form for Multiple or Single Equipment.

Step 3: LTT Device Application Tests – Group LTT Coordinator(s):

· Advised all responsible taggers that they have a right to personally verify that the hazardous energy sources have been effectively de-energized.

Step 4: Lockout Box

· A specific location for the lockout box is agreed upon and designated by the Group LTT Coordinator(s).

· All responsible taggers have knowledge and access to the lockout box.

· All keys to the locks being used to isolate all energy sources associated with the LTT are placed in the lockout box by the Group LTT Coordinator(s).

· The lockout box is then locked with the Group LTT Coordinator(s)’ lock and tag.

· A copy of the Group LTT Form is then placed near the lockout box so it is readily accessible to all responsible taggers.

Step 5: Taggers Lock Out of the Lockout Box – Prior to Beginning the Work

· All responsible taggers must review the Group LTT Form and any associated Work Control Documents.

· All taggers must apply their individual locks to the lockout box prior to work.

· All taggers, or the Group LTT Coordinator(s), visually verifies the isolation of hazardous energy sources at each location listed on the Group LTT Form for Multiple or Single Equipment to ensure that the integrity of a proper LTT has been achieved before taggers commence work (i.e., it must be verified that each lock and tag is physically in place as noted on the Group LTT Form for Multiple or Single Equipment)

Step 6: Shift/Crew Changes

· The group lockout box remains locked at all times until the Group LTT Coordinator(s) determines it is safe to remove the keys. (i.e. The Group LTT Coordinator(s)’ lock stays on the box until such time.)

· The Group LTT Coordinator(s) communicates the job-status to affected personnel.

· At each shift change, all oncoming responsible taggers, or the Group LTT Coordinator(s), visually verifies the isolation of hazardous energy sources at each location listed on the Group LTT Form for Multiple or Single Equipment to ensure that the integrity of a proper LTT has been achieved before taggers commence work (i.e., it must be verified that each lock and tag is physically in place as noted on the Group LTT Form for Multiple or Single Equipment).

Step 7: Job Completion – Group LTT Coordinator(s):

· Reviews the completed job against the job description to ensure that it is complete and that no one will be endangered by the removal of the lock devices.

· Notifies the system owners that work is complete and ready for re-energizing.

· Removes the keys from the lockout box and the LTT devices from the equipment.

· Test equipment to verify proper operation.

· Completes the Group LTT Form for Multiple or Single Equipment.

ISSUING AUTHORITY	APPENDIX AUTHOR	APPROVAL DATE	EFFECTIVE DATE	EXPIRATION DATE	REV.
ESH&Q Division	Todd Kujawa	04/04/09	04/04/09	04/04/12	1

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