The Eight Exceptions
The employer must develop, document, and use a written LOTO procedure for servicing or maintenance of a machine or equipment unless ALL of the following eight exceptions exist:
- The machine or equipment has no potential for stored or residual energy or reaccumulation of stored energy after shut down which could endanger employees.
- The machine or equipment has a single energy source which can be readily identified and isolated.
- The isolation and locking out of the energy source will completely de-energize and deactivate the machine or equipment.
- The machine or equipment is isolated from the energy source and locked out during servicing or maintenance.
- A single lockout device will achieve a lock-out condition.
- The lockout device is under the exclusive control of the authorized employee performing the servicing or maintenance.
- The servicing or maintenance does not create hazards for other employees.
- The employer, in utilizing this exception, has had no accidents involving the unexpected activation or re-energization of the machine or equipment during servicing or maintenance.
Again, if the employer cannot meet the above exception criteria, they must develop and use written LOTO procedures.
New or Modified Equipment
All new machines and equipment, or all machines and equipment that undergo major repair, renovations or modification, must be equipped with energy-isolating devices capable of accepting a lockout device.
Whenever replacement or major repair, renovation or modification of a machine or equipment is performed, and whenever new machines or equipment are installed, energy isolating devices for such machine(s) or equipment must be designed to accept a lockout device.
Knowledge Check Choose the best answer for the question.
1-7. If the employer has had previous accidents involving the unexpected startup of equipment, the employer _____.
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