What is the minimum number of tabs required to fasten Booklet type mailpieces for automation letter price claims?

The minimum number of tabs required to securely fasten Booklet type mailpieces for automation letter price claims is indeed three. This requirement is based on postal regulations to ensure that the mailpieces remain securely closed during processing and transportation. By using three tabs, the risk of the booklet opening accidentally is greatly reduced, which is crucial for maintaining the integrity of the contents and facilitating efficient handling through automated systems.

Using fewer tabs than stipulated might lead to mailpieces being considered non-compliant, potentially resulting in higher postage rates or the rejection of the mailpieces altogether. Each tab serves to enhance stability, particularly when the mailpieces are subjected to various conditions in the postal system, and adheres to the guidelines established by the postal authorities for automation compatibility.