7 CFR §28.504
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Color grade No. 4 shall be American Pima cotton which in color is within the range represented by a set of samples in the custody of the U.S. Department of Agriculture in a container marked “Original Official Cotton Standards of the United States, American Pima, Color Grade No. 4, effective July 1, 1986.”