“U.S. No. 3” consists of tangerines which meet the following requirements:

1. (a) Basic requirements:

   1. (1) Mature;
   2. (2) Not flabby; and
   3. (3) Not seriously lumpy.

2. (b) Free from:

   1. (1) Decay;
   2. (2) Unhealed skin breaks; and
   3. (3) Wormy fruit.

3. (c) Free from very serious damage caused by:

   1. (1) Ammoniation;
   2. (2) Bruises;
   3. (3) Caked melanose;
   4. (4) Creasing;
   5. (5) Dirt or other foreign material;
   6. (6) Disease;
   7. (7) Dryness or mushy condition;
   8. (8) Hail;
   9. (9) Insects;
   10. (10) Scab;
   11. (11) Scale;
   12. (12) Scars;
   13. (13) Skin breakdown;
   14. (14) Sprayburn;
   15. (15) Sunburn; and,
   16. (16) Other means.
4. (d) For tolerances see § 51.1820.