Does the mailer have to prove addresses have been through a move update process at the time of mailing?
No. The mailer does not need to prove that their list has been through a move update process at the time of mailing. On the postage statement, the mailer selects which move update process has been used (i.e. NCOA) and signing his or her name indicates that the standards have been met. The USPS may ask the customer to produce a 6014 form. This form is a compliance form and often a mail house will ask the mail owner to fill out the form. The form explains that the mail owner is responsible for any false claims. MDR does not fill out this form.