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# Title
 1  2003 - 01/16/2003 - Necessary precautions required to prevent entry into a swinging superstructure's radius.
 2  1991 - 09/20/1991 - Request for variance from standard on Cranes and Derricks
 3  1983 - 06/03/1983 - Precautions when barricading of drill and pile rigs is not possible
 4  1980 - 04/17/1980 - Barricade in accessible areas of the rear of the rotating structure of the crane secured to the under carriage.
 5  1976 - 08/13/1976 - Use of audible alarms in lieu of physical barriers.

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