7 CFR §51.3195
U.S. No. 1 consists of onions which meet the following requirements:
- (a)Basic requirements:
- (1)Similar varietal characteristics, except color when designated as a specialty or mixed pack;
- (2)Mature;
- (3)Fairly firm; and,
- (4)Fairly well shaped.
- (b)Free from:
- (1)Decay;
- (2)Wet sunscald;
- (3)Doubles; and,
- (4)Bottlenecks.
- (c)Free from damage caused by:
- (1)Seedstems;
- (2)Splits;
- (3)Dry sunken areas;
- (4)Sunburn;
- (5)Sprouting;
- (6)Staining;
- (7)Dirt or foreign material;
- (8)Mechanical;
- (9)Tops;
- (10)Roots;
- (11)Translucent scales;
- (12)Watery scales;
- (13)Moisture;
- (14)Disease;
- (15)Insects; and,
- (16)Other means.
- (d)For size and tolerances see §§ 51.3198 and 51.3199.