Iowa Code § 184A.3
A processor receiving turkeys for slaughter shall do all of the following:
2. Within a period established by rules adopted by the council, the processor shall regularly sign and submit to the council an invoice or other records required by the council to expedite collection of the assessment. The council may require that the processor submit a separate invoice for each purchase. The invoice shall be legibly printed and shall not be altered. An invoice shall include all of the following:
[C73, 75, 77, 79, 81, §184A.3] 99 Acts, ch 158, §6, 18, 19