Each carton identified with the AZDA grademarks shown in R3-2-1111 shall be legibly lot-numbered on the consumer package and the carton, and may also be shown on the individual egg. The lot number shall be the consecutive day of the year (Julian date) on which the eggs were packed (e.g., 132), except other lot-numbering systems may be used when submitted in writing and approved by the Administrator.
Ariz. Admin. Code § R3-2-1112