Strasbaugh Universal Vacuum System
Page 16 Version 1.2—March 2004
APPENDIX TO LOCKOUT SAFETY PROCEDURE
Training, Lockout/Tagout, per 29 CFR 1910.147
Introduction
On October 30, 1989, the Lockout/Tagout Standard, 29 CFR 1910.147, went into effect. It
was created to help reduce the death and injury rate caused by the unexpected energization
or startup of machines, or the release of stored energy. The standard covers servicing and
maintenance of machines and equipment in which unexpected energization, start-up or
release of stored energy could cause injury [29 CFR 1910.147 (a)(1)(i), 1910.147 (a)(2)(I)].
Normal production operations, cords and plugs under exclusive control, and hot tap
operations are not covered [29 CPR 1910.147 (a)(2)(ii)]. This is intended to apply to
energy sources such as electrical, mechanical, hydraulic, chemical, nuclear and thermal.
Lockout is the placement of a lockout device on an energy isolation device (circuit breaker,
slide gate, line valve, disconnect switch, etc.) to ensure that the energy isolating device and
equipment being controlled cannot be operated until the lockout device is removed. A
lockout device uses a positive means such as a lock (key or combination type) to hold an
energy-isolating device in a safe position and prevent the energization of a machine or
equipment. The lockout device must be substantial enough to prevent removal without use
of excessive force or unusual techniques.
Tagout is the placement of a tagout device (a tag or other prominent warning device and a
means of attachment) on an energy isolation device to indicate that the energy isolating
device and the equipment being controlled may not be operated until the tagout device is
removed. The lockout device shall be used unless the employer can demonstrate that the
utilization of a tagout system will provide full employee protection. The tagout device
shall be non-reusable, attached by hand, self-locking, and non-releasing with a minimum
unlocking strength of no less than 50 pounds and must be at least equivalent to an all-
environment tolerant nylon cable tie.
Written Program
OSHA 29 CFR 1910.147 (c)(4) covers the minimal acceptable written program procedures.
It must include:
1. A specific written statement of the intended use of the procedure.
2. Specific procedural steps for shutting down, isolating, blocking and securing
machines or equipment to control hazardous energy. This must be done for
each piece of equipment, unless it is a duplicate.
3. Specific procedural steps for the placement, removal and transfer of lockout
devices and the responsibility for them.
4. Specific requirements for testing the effectiveness of the lockout devices,
tagout devices and other energy control measures.
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