Work Process Basic LOTO Rules

1. Lockout/Tagout (LOTO) is the process of establishing a safe work condition on equipment prior to performing work. A safe work condition is when the equipment has been placed in a verified zero-energy state and positively controlled to prevent unexpected re-energization.
2. Lockout/Tagout (LOTO) is required whenever construction, service, maintenance, modification, or demolition is being performed on or near equipment in which the unexpected energization or start-up of the equipment, or the release of stored energy, could cause injury to people or damage to equipment. This includes access to areas where it would be unsafe unless the equipment were shut down and de-energized.
3. All persons performing work on locked out equipment shall apply their personal LOTO lock(s) to that equipment. These persons shall be trained and authorized as LOTO Authorized Persons in accordance with Work Process M .
4. LOTO Authorized Persons shall only apply their own personal LOTO lock. No person shall ever remove another person’s personal LOTO lock, except under the restrictions of Work Process O , Special Condition LOTO Lock Removal.
   1. Note: The system operator control method found in OSHA 1910.269(d)(8)(v) is not applicable or permitted at Berkeley Lab.
5. No person shall operate or attempt to operate any energy isolation to which a LOTO lock or tag is attached other than during the initial challenge when establishing the LOTO.
6. For all LOTO devices, the LOTO Authorized Person applying the LOTO device must be knowledgeable about the proper use and application of the device. LOTO devices that are improperly affixed, or that are used on energy isolations for which they were not designed, may fail to prevent actuation of the isolation or fall off entirely. For this reason:
   1. Upon initially applying the LOTO device, the isolation is challenged to ensure that it will not operate.
   2. After this initial challenge, other persons MUST NOT challenge the LOTO device unless all LOTO locks have been removed. This is to prevent the unintentional energization when the LOTO device is improperly applied.
   3. If any person should suspect that a LOTO device has been improperly applied, they must immediately contact the Person In Charge for resolution. If necessary, the Person In Charge must stop work and have all LOTO Authorized Persons remove their personal locks in order to correct the discrepancy.
7. The LOTO Safe Zone is the extent of equipment that has been placed in a safe work condition. It is defined by the energy isolations that were selected for the LOTO.
8. The LOTO Safe Zone must always encompass the entirety of the expected scope of work. If the scope of work is expected to shift outside of the LOTO Safe Zone, then the work must be stopped and the LOTO must be changed in order to accommodate the new scope of work.
9. All lockouts shall be established following the requirements in this program. Push buttons, selector switches, software interlocks, and control circuits are not energy isolations and cannot be used to isolate hazardous energy.
10. The Person In Charge of a LOTO procedure must ensure that the LOTO Safe Zone always matches the scope of work at any given time. Only LOTO Authorized Persons and Qualified Persons may perform the necessary manipulation and testing required to establish the lockout. This includes equipment shutdown, operation of isolation devices, releasing stored energy, and verification of de-energization. When work is finished, this requirement also includes restoration, re-energization, and start-up of the equipment.
    

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