---
kind: "section"
citation: "7 C.F.R. § 51.3410"
title: "7"
number: "51.3410"
heading: "Grades."
url: "https://uscodex.org/cfr/7/51.3410"
---

# §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.

## Notes

### Source

Source: 48 FR 10802, Mar. 15, 1983, unless otherwise noted.

### Authority

Authority: 7 U.S.C. 1621-1627.