Iowa grades.

21—36.13(196) Iowa grades. The Iowa standards for consumer grades, quality, and weight classes for shell eggs are as follows: IOWA DEPARTMENT OF AGRICULTURE AND LAND STEWARDSHIP TABLE 1 IOWA SPECIFICATIONS QUALITY AA A B FACTOR QUALITY QUALITY QUALITY Shell Clean Clean Clean to slightly stained* Unbroken Unbroken Unbroken Practically normal Practically normal Abnormal Air Cell 1/8 inch or less in depth 3/16 inch or less in depth Over 3/16 inch in depth Unlimited movement Unlimited movement and Unlimited movement and and free or bubbly free or bubbly free or bubbly White Clear Clear Weak and watery Firm Reasonably firm Small blood and meatspots present** Yolk Outline slightly defined Outline fairly well Outline plainly visible Practically free from defined Enlarged and flattened defects Practically free from Clearly visible germ defects development but no blood Other serious defects * Moderately stained areas permitted (1/32 of surface if localized, or 1/16 if scattered). ** If they are small (aggregating not more than 1/8 inch in diameter). For eggs with dirty or broken shells, the standards of quality provide two additional qualities. These are: Dirty Check Unbroken Broken or cracked shell but membranes intact, not Adhering dirt or foreign material, prominent stains, leaking*** moderate stained areas in excess of B quality *** Leaker has broken or cracked shell and membranes and contents leaking or free to leak. IOWA DEPARTMENT OF AGRICULTURE AND LAND STEWARDSHIP TABLE 2 SUMMARY OF IOWA CONSUMER GRADES FOR SHELL EGGS U.S. CONSUMER QUALITY REQUIRED1 TOLERANCE PERMITTED2 GRADE (ORIGIN) Percent Quality Grade AA 87 percent AA Up to 13 A or B5 Not over 5 checks6 Grade A 87 percent A or better Up to 13 B5 Not over 5 checks6 Grade B 90 percent B or better Not over 10 checks U.S. CONSUMER QUALITY REQUIRED1 TOLERANCE PERMITTED3 GRADE Percent Quality (DESTINATION) Grade AA 72 percent AA Up to 284 A or B5 Not over 7 checks6 Grade A 82 percent A or better Up to 18 B5 Not over 7 checks6 Grade B 90 percent B or better Not over 10 checks 1 In lots of two or more cases, see Table 3 of this rule for tolerances for an individual case within a lot. Ch 36, p.2 IAC 2 For the U.S. Consumer Grades (at origin), a tolerance of 0.50 percent leakers, dirties, or loss (due to meat or blood spots) in any combination is permitted, except that such loss may not exceed 0.30 percent. Other types of loss are not permitted. 3 For the U.S. Consumer Grades (destination), a tolerance of 1 percent leakers, dirties, or loss (due to meat or blood spots) in any combination is permitted, except that such loss may not exceed 0.30 percent. Other types of loss are not permitted. 4 For U.S. Grade AA at destination, at least 10 percent must be A quality or better. 5 For U.S. Grade AA and A at origin and destination within the tolerances permitted for B quality, not more than 1 percent may be B quality due to air cells over 3/8 inch, blood spots (aggregating not more than 1/8 inch in diameter), or serious yolk defects. 6 For U.S. Grades AA and A jumbo size eggs, the tolerance for checks at origin and destination is 7 percent and 9 percent, respectively. IOWA DEPARTMENT OF AGRICULTURE AND LAND STEWARDSHIP TABLE 3 TOLERANCE FOR INDIVIDUAL CASE WITHIN A LOT U.S. CONSUMER CASE QUALITY ORIGIN DESTINATION GRADE (Percent) (Percent) Grade AA AA (Minimum) 77 62 A or B 13 28 Checks (Maximum) 10 10 Grade A A (Minimum) 77 72 B 13 18 Checks (Maximum) 10 10 Grade B B (Minimum) 80 80 Checks (Maximum) 20 20 NOTE: Substitution of higher qualities for lower qualities is permitted. TABLE 4 IOWA WEIGHT CLASSES FOR CONSUMER GRADES FOR SHELL EGGS MINIMUM NET MINIMUM NET MINIMUM WEIGHT FOR SIZE OR WEIGHT PER WEIGHT PER 30 INDIVIDUAL EGGS AT WEIGHT CLASS DOZEN DOZEN RATE PER DOZEN OUNCES POUNDS OUNCES Jumbo 30 56 29 Extra Large 27 50½ 26 Large 24 45 23 Medium 21 39½ 20 Small 18 34 17 Peewee 15 28 -- These rules are intended to implement Iowa Code chapter 196 as amended by 2011 Iowa Acts, House File 453. [ARC 0138C, IAB 5/30/12, effective 7/4/12]