U.S. Code of Federal Regulations

Regulations most recently checked for updates: Jan 21, 2026

All TitlesTitle 7Chapter IPart 51Subpart E - Subpart E—Application of Tolerances

GENERAL
§ 51.680 - General.

GRADES
§ 51.681 - U.S. Fancy.
§ 51.682 - U.S. No. 1.
§ 51.683 - U.S. No. 1 Bright.
§ 51.684 - U.S. No. 1 Bronze.
§ 51.685 - U.S. Combination.
§ 51.686 - U.S. No. 2.
§ 51.687 - U.S. No. 2 Russet.
§ 51.688 - U.S. No. 3.

TOLERANCES
§ 51.689 - Tolerances.

APPLICATION OF TOLERANCES
§ 51.690 - Application of tolerances.

STANDARD PACK
§ 51.691 - Standard pack.

STANDARD SIZING
§ 51.692 - Standard sizing.

DEFINITIONS
§ 51.693 - Mature.
§ 51.694 - Similar varietal characteristics.
§ 51.695 - Well colored.
§ 51.696 - Firm.
§ 51.697 - Well formed.
§ 51.698 - Smooth texture.
§ 51.699 - Injury.
§ 51.700 - Discoloration.
§ 51.701 - Fairly smooth texture.
§ 51.702 - Damage.
§ 51.703 - Fairly well colored.
§ 51.704 - Reasonably well colored.
§ 51.705 - Fairly firm.
§ 51.706 - Slightly misshapen.
§ 51.707 - Slightly rough texture.
§ 51.708 - Serious damage.
§ 51.709 - Misshapen.
§ 51.710 - Slightly spongy.
§ 51.711 - Very serious damage.
§ 51.712 - Diameter.
§ 51.713 - Classification of defects.

METRIC CONVERSION TABLE
§ 51.714 - Metric conversion table.
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