These boxes have two names, some people say Neighborhood Delivery Collection Box Unit (NDCBU) to others they are a Cluster Box Unit (CBU). Depending on where you live you may hear either term may, still, both mean the same thing. In recent years, the Postal Service has been struggling to manage mail deliveries.Jul 1, 2020
What is a CBU mailbox?
Also known as a Neighborhood Delivery Collection Box Unit (NDCBU), a CBU is a centralized mail delivery unit that contains multiple individually locked compartments for both incoming and outgoing mail. ... For a neighborhood with 50 homes, 50 curbside mailboxes may be used.Sep 16, 2019