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Subchapter 7. General Industry Safety Orders
Group 3. General Plant Equipment and Special Operations
Article 20. Hand and Portable Powered Tools and Equipment

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§3555. Definitions.

Jack. A jack is an appliance for lifting and lowering or moving horizontally a load by application of a pushing force.

NOTE: Jacks may be of the following types: Lever and ratchet, screw and hydraulic.

Rating. The rating of a jack is the maximum working load for which it is designed to lift safely that load throughout its specified amount of travel.

NOTE: To raise the rated load of a jack, the point of application of the load, the applied force, and the length of lever arm should be those designated by the manufacturer for the particular jack considered.

NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.


1. New Article 20 (Sections 3555-3563, Figures LM-1a-LM-5) filed 3-28-75; effective thirtieth day thereafter (Register 75, No. 13).

2. Repealer of subsection (b) filed 2-20-80; effective thirtieth day thereafter (Register 80, No. 8).

3. Amendment filed 11-22-85; effective thirtieth day thereafter (Register 85, No. 48).

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