• Subpart A [§ 51.1 - § 51.62] - Subpart A—Requirements

• Subpart B [§ 51.300 - § 51.322] - Subpart B—United States Standards for Grades of Apples

• Subpart C [§ 51.340 - § 51.349] - Subpart C—United States Standards for Grades of Apples for Processing

• Subpart D [§ 51.620 - § 51.653] - Subpart D—Application of Tolerances

• Subpart E [§ 51.680 - § 51.714] - Subpart E—Application of Tolerances

• Subpart F [§ 51.750 - § 51.784] - Subpart F—United States Standards for Grades of Florida Grapefruit

• Subpart G [§ 51.880 - § 51.914] - Subpart G—United States Standards for Grades of Table Grapes (European or Vinifera Type)

• Subpart H [§ 51.1140 - § 51.1179] - Subpart H—United States Standards for Grades of Florida Oranges and Tangelos

• Subpart I [§ 51.1235 - § 51.1242] - Subpart I—United States Standards for Cleaned Virginia Type Peanuts in the Shell

• Subpart J [§ 51.1260 - § 51.1280] - Subpart J—United States Standards for Summer and Fall Pears

• Subpart K [§ 51.1300 - § 51.1323] - Subpart K—United States Standards for Winter Pears

• Subpart L [§ 51.1345 - § 51.1359] - Subpart L—United States Standards for Grades of Pears for Processing

• Subpart M [§ 51.1400 - § 51.1418] - Subpart M—United States Standards for Grades of Pecans in the Shell

• Subpart N [§ 51.1430 - § 51.1453] - Subpart N—United States Standards for Grades of Shelled Pecans

• Subpart O [§ 51.1520 - § 51.1538] - Subpart O—United States Standards for Grades of Fresh Plums and Prunes

• Subpart P [§ 51.1540 - § 51.1566] - Subpart P—United States Standards for Grades of Potatoes

• Subpart Q [§ 51.1575 - § 51.1587] - Subpart Q—United States Consumer Standards for Potatoes

• Subpart R [§ 51.1810 - § 51.1837] - Subpart R—United States Standards for Grades of Florida Tangerines

• Subpart S [§ 51.1855 - § 51.1877] - Subpart S—United States Standards for Fresh Tomatoes

• Subpart T [§ 51.1900 - § 51.1913] - Subpart T—United States Consumer Standards for Fresh Tomatoes

• Subpart U [§ 51.1995 - § 51.2009] - Subpart U—United States Standards for Grades of Filberts in the Shell

• Subpart V [§ 51.2075 - § 51.2091] - Subpart V—United States Standards for Grades of Almonds in the Shell

• Subpart W [§ 51.2105 - § 51.2131] - Subpart W—United States Standards for Grades of Shelled Almonds

• Subpart X [§ 51.2275 - § 51.2296] - Subpart X—United States Standards for Shelled English Walnuts (Juglans Regia)

• Subpart Y [§ 51.2335 - § 51.2341] - Subpart Y—United States Standards for Grades of Kiwifruit

• Subpart Z [§ 51.2540 - § 51.2549] - Subpart Z—United States Standards for Grades of Pistachio Nuts in the Shell

• Subpart AA [§ 51.2555 - § 51.2562] - Subpart AA—United States Standards for Grades of Shelled Pistachio Nuts

• Subpart BB [§ 51.2646 - § 51.2660] - Subpart BB—United States Standards for Grades for Sweet Cherries

• Subpart CC [§ 51.2710 - § 51.2721] - Subpart CC—United States Standards for Shelled Runner Type Peanuts

• Subpart DD [§ 51.2730 - § 51.2741] - Subpart DD—United States Standards for Grades of Shelled Spanish Type Peanuts

• Subpart EE [§ 51.2750 - § 51.2763] - Subpart EE—United States Standards for Shelled Virginia Type Peanuts

• Subpart FF [§ 51.2830 - § 51.2854] - Subpart FF—United States Standards for Grades of Onions (Other Than Bermuda-Granex-Grano and Creole Types)

• Subpart GG [§ 51.2945 - § 51.2966] - Subpart GG—United States Standards for Grades of Walnuts in the Shell

• Subpart HH [§ 51.3050 - § 51.3069] - Subpart HH—United States Standards for Florida Avocados

• Subpart II [§ 51.3195 - § 51.3212] - Subpart II—United States Standards for Grades of Bermuda-Granex-Grano Type Onions

• Subpart JJ [§ 51.3410 - § 51.3418] - Subpart JJ—United States Standards for Grades of Potatoes for Processing