51.1143—U.S. No. 1.
“U.S. No. 1” consists of oranges which meet the following requirements:
(ii)
For Valencia and other late varieties, not less than 50 percent, by count, shall be fairly well colored and the remainder reasonably well colored.
(2)
Discoloration: Not more than one-third of the surface, in the aggregate, may be affected by discoloration. (See § 51.1161.);
(e)
Internal quality: Lots meeting the internal requirements for “U.S. Grade AA Juice (Double A)” or “U.S. Grade A Juice” may be so specified in connection with the grade. (See §§ 51.1176-51.1179.)