U.S. Code of Federal Regulations

Regulations most recently checked for updates: Sep 25, 2022

§ 51.1837 - Classification of defects.

Table I

Factor Damage Serious damage Very serious damage
AmmoniationNot occurring as light speck type, or detracts more than discoloration permitted in the gradeScars are cracked or dark and aggregating more than a circle 5/8 inch (15.9 mm) in diameterAggregating more than 25 percent of the surface.
BruisesSegment walls are collapsed, or rag is ruptured and juice sacs are rupturedSegment walls are collapsed, or rag is ruptured and juice sacs are rupturedFruit is split open, peel is badly watersoaked, or rag is ruptured and juice sacs are ruptured causing a mushy condition affecting all segments more than 1/2 inch (12.7 mm) at bruised area or the equivalent of this amount, by volume, when affecting more than one area on the fruit.
BuckskinAggregating more than a circle 3/4 inch (19.1 mm) in diameterAggregating more than 25 percent of the surfaceAggregating more than 50 percent of the surface.
Caked melanoseAggregating more than a circle 3/8 inch (9.5 mm) in diameterAggregating more than a circle 5/8 inch (15.9 mm) in diameterAggregating more than 25 percent of the surface.
CreasingMaterially weakens the skin, or extends over more than one-third of the surfaceSeriously weakens the skin, or extends over more than one-half of the surfaceVery seriously weakens the skin, or is distributed over practically the entire surface.
Dryness or mushy conditionAffecting all segments more than 1/8 inch (3.2 mm) at stem end, or the equivalent of this amount, by volume, when occurring in other portions of the fruitAffecting all segments more than 1/4 inch (6.4 mm) at stem end, or the equivalent of this amount, by volume, when occurring in other portions of the fruitAffecting all segments more than 1/2 inch (12.7 mm) at stem end, or the equivalent of this amount, by volume, when occurring in other portions of the fruit.
Green spotsAggregating more than a circle 1/2 inch (12.7 mm) in diameterAggregating more than a circle 5/8 inch (15.9 mm) in diameterAggregating more than 25 percent of the surface.
Oil spotsAggregating more than a circle 1/2 inch (12.7 mm) in diameterAggregating more than a circle 3/4 inch (19.1 mm) in diameterAggregating more than 25 percent of the surface.
ScabMaterially detracts from the shape or texture, or aggregating more than a circle 3/8 inch (9.5 mm) in diameterSeriously detracts from the shape or texture, or aggregating more than a circle 5/8 inch (15.9 mm) in diameterAggregating more than 25 percent of the surface.
ScaleAggregating more than a circle 3/8 inch (9.5 mm) in diameterAggregating more than a circle 5/8 inch (15.9 mm) in diameterAggregating more than 25 percent of the surface.
Scars, Hail, and Thorn scratches [For smooth or fairly smooth superficial scars see § 51.1828.]Deep or rough aggregating more than a circle 1/4 inch (6.4 mm) in diameter; slightly rough with slight depth aggregating more than a circle 3/4 inch (19.1 mm) in diameter; smooth or fairly smooth with slight depth aggregating more than a circle 1 1/8 inches (28.6 mm) in diameterDeep or rough aggregating more than a circle 1/2 inch (12.7 mm) in diameter; slightly rough with slight depth aggregating more than a circle 1 1/8 inches (28.6 mm) in diameter; smooth or fairly smooth with slight depth aggregating more than 10 percent of fruit surfaceDeep or rough or unsightly that appearance is very seriously affected.
Skin breakdownAggregating more than a circle 1/2 inch (12.7 mm) in diameterAggregating more than a circle 3/4 inch (19.1 mm) in diameterAggregating more than 25 percent of the surface.
SprayburnSkin is hard and aggregating more than a circle 3/4 inch (19.1 mm) in diameterSkin is hard and aggregating more than a circle 1 1/4 inches (31.8 mm) in diameterAggregating more than 25 percent of the surface.
SunburnSkin is flattened, dry, darkened, or hard and the affected area exceeds 25 percent of the surfaceSkin is hard and affects more than one-third of the surfaceAggregating more than 50 percent of the surface.

Note: All references to area or aggregate area, or length are based on a tangerine 2 1/2 inches in diameter (63.5 mm), allowing proportionately greater areas on larger fruit and lesser areas on smaller fruit.