The customer must notify the mailer, not the carrier.A way to reduce your customer complaints about junk mail is give each of them form PS 3982-R. They can list each of the box holders they do not want to receive and their mail carrier will happily comply with their wishes by not delivering the offending box holders. A bit of a nuisance for the carrier but many happy customers. I never told my customers about that form.
A customer who does not wish to receive a certain boxholder mailpiece must contact the mailer in order to request non-delivery. The mailer will then submit the customer request electronically to the Postal Service via My Post Office. The RBNR is being added to the main menu of My Post Office and the manager will check daily to see if there are any requests. Handbooks
January 31, 2008
Also check the PO-603; 322.23 PO 603 – Rural Carrier Duties | Ruralinfo.net Knowledgebase