U.S. No. 1.

§ 51.621 U.S. No. 1. “U.S. No. 1” consists of grapefruit which meet the following requirements: (a) Basic requirement: (1) Discoloration: (i) Not more than one-half of the surface, in the aggregate, may be affected by discoloration. (See § 51.638.) (2) Firm; (3) Mature; (4) Similar varietal characteristics; (5) Fairly well colored; (6) Fairly smooth texture; and, (7) Fairly well formed. (b) Free from: (1) Bruises; (2) Cuts not healed; (3) Caked melanose; (4) Growth cracks; (5) Sprayburn; (6) Decay; and, (7) Wormy fruit. (c) Not damaged by any other cause. (d) For tolerances see § 51.628.