7 CFR § 51.1543
U.S. No. 2
July 6, 2020
“U.S. No. 2” consists of potatoes which meet the following requirements:
(a) Similar varietal characteristics, except when designated as a mixed or specialty pack;
(b) Not seriously misshapen;
(c) Free from:
(1) Freezing;
(2) Blackheart;
(3) Late blight, southern bacterial wilt and ring rot; and,
(4) Soft rot and wet breakdown.
(d) Free from serious damage by any other cause. See §§51.1564 and 51.1565.
(e) Size. Not less than 11⁄2 inches in diameter, unless otherwise specified in connection with the grade.
(f) For tolerances see §51.1546.
[35 FR 18258, Dec. 1, 1970, as amended at 76 FR 31789, June 2, 2011]