The following lengths of American Pima staple are represented by a quantity of cotton in the custody of the United States Department of Agriculture suitably contained and marked ``Original Representation of Official Cotton Standards of the United States'' followed in each instance by the name of growth, appropriate designation for staple length, and the effective date. ------------------------------------------------------------------------
Staple length (inches) Effective date------------------------------------------------------------------------1\5/16\................................... Aug. 1, 1961.1\3/8\.................................... Aug. 10, 1943.1\7/16\................................... Aug. 10, 1943.1\1/2\.................................... Aug. 1, 1929.------------------------------------------------------------------------ [49 FR 28391, July 12, 1984]