7 C.F.R. § 51.3410 — Grades.
§ 51.3410 Grades. (a) “U.S. No. 1 Processing” consists of potatoes which meet the following requirements: (1) Basic requirements: (i) Similar varietal characteristics; (ii) Moderately firm; and, (iii) Fairly well shaped. (2) Free from: (i) Freezing or freezing injury; (ii) Blackheart; (iii) Late Blight Tuber Rot; (iv) Southern Bacterial Wilt; (v) Bacterial Ring Rot; (vi) Insects, worms or larvae; (vii) Soft rot and wet breakdown; and, (viii) Loose sprouts, dirt and foreign material. (3) Free from damage by any cause. (4) Size. Unless otherwise specified, individual potatoes shall be not less than 2 inches in diameter or 4 ounces in weight. Percentage(s) of a larger size(s) and/or a maximum size may be specified. (b) “U.S. No. 2 Processing” consists of potatoes or usable pieces of potatoes which meet the following requirements: (1) Basic requirements: (i) Similar varietal characteristics; (ii) Moderately firm; and, (iii) Not seriously misshapen. (2) Free from: (i) Freezing or freezing injury; (ii) Blackheart; (iii) Late Blight Tuber Rot; (iv) Southern Bacterial Wilt; (v) Bacterial Ring Rot; (vi) Insects, worms or larvae; (vii) Soft rot and wet breakdown; and, (viii) Loose sprouts, dirt and foreign material. (3) Free from serious damage by any cause. (4) Size. Unless otherwise specified, whole potatoes shall be not less than 1 1/2 inches in diameter, or usable pieces shall be not less than 4 ounces in weight. Percentage(s) of a larger size(s) and/or maximum size may be specified.