Who is responsible for submitting electronic documentation for mailpieces?

The mailer is responsible for submitting electronic documentation for mailpieces because they are the ones preparing and sending the mail. This documentation, often referred to as an Advanced Shipment Notice (ASN) or electronic manifest, contains important details about the mailpieces being sent, including their quantity, weight, and destination. This submission is a crucial step in ensuring that the mail is properly processed and tracked by the postal service.

In this context, the mailer acts as the liaison between the postal service and the recipients, ensuring compliance with any regulations and facilitating smooth delivery. While authorized personnel may assist in this process, the ultimate responsibility lies with the mailer, as they initiate the mailing process and provide the necessary documentation to the postal service for effective handling of the shipment.