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USDA Egg Carton Labeling  
Egg Carton Codes
USDA Carton Stamping Tells When And Where The Eggs Are Packed?

 
When the USDA grade shield is present on the carton, the carton must also be labeled with the date and location of where the eggs were packed. Consumers can also use this information to learn more about the eggs they are buying. This information is typically stamped onto one end of each carton of eggs. An example of a date and location code is shown in the picture left:

 
Cartons that have the USDA grade shield are marked to identify the company and location where the eggs were packed, and the date that the eggs were washed, graded, and placed into the cartons. In addition, most packers also provide consumers with a code date, which indicates the last date the eggs should be sold at retail, or used by the consumer.

 

 
1. CODE DATES:

 
Egg processors typically print dates commonly called "Code Dates" on cartons for purposes of rotating stock or controlling inventory. "EXP", "Sell By", "Best if Used Before" are examples of terminology used for code dating. Use of code dates on USDA graded eggs is optional, however, if they are used, certain rules must be followed.

 
If an expiration date is used, it must be printed in month/day format and preceded by the appropriate prefix. "EXP", "Sell By", "Not to be sold after the date at the end of the carton" are examples of expiration dates. Expiration dates can be no more than 30 days from the day the eggs were packed into the carton.

 
Another type of code dating used indicates the recommended maximum length of time that the consumer can expect eggs to maintain their quality when stored under ideal conditions. Terminology such as "Use by", Use before", "Best before" indicates a period that the eggs should be consumed before overall quality diminishes. Code dating using these terms may not exceed 45 days including the day the eggs were packed into the carton.

 
The expiration date in this example is "Aug 29".

 

 
2. PLANT NUMBER:

 
USDA assigns a plant number to each official plant where eggs are packed under USDA's grading service. This number is always preceded by the letter "P" and must be stamped or pre-printed on each carton. The plant number in this example is "P1380."

 
You can find out where the USDA graded eggs you buy are packed. Visit our List of Plants Operating Under USDA Poultry & Egg Grading Programs and follow directions to find out which plant packed your eggs.

 

 
3. PACK DATE:

 
The day of the year that the eggs are processed and placed into the carton must also be shown on each carton with the USDA grade shield. The number is a three-digit code that represents the consecutive day of the year. For example, January 1 is shown as "001" and December 31 as "365." Typically, eggs are packed within 1 to 7 days of being laid. The pack date in this example is "218", meaning that the eggs were packed on the 218th day of the year, or in this example, August 5. If your carton shows a USDA grade shield, you can determine the date that the eggs were packed from the carton date code.

 
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  Last Modified Date: 08/15/2006