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• Standard Number: 1926.652

October 2, 1984

Mr. Larry Etchechury
Director
Division of Occupational Safety and Health
State of Arizona
Post Office Box 19070
Phoenix, Arizona 85005

Dear Mr. Etchechury:

Gordon Jones called on September 27, 1984, about an interpretation of 1926.652, Table P-2. In the table, the depth of the trench controls the condition to be adhered to. If the trench is 20 feet deep, the 5 to 10 feet and the 10 to 15 feet requirements are negated, therefore, closed sheeting is required.

The only time the criteria would change is if the trench was sloped or benched. If the first 5 feet was sloped in a 20 foot trench, then the trench would be considered 15 feet deep and the 10-15 requirements would prevail.

Sincerely,



JAMES R. GUENTHER
Regional Safety Engineer

Standard Interpretations - Table of Contents Standard Interpretations - Table of Contents