If curb delivery is approved by the Postal Service, posts and other supports for curbside mailboxes are owned and controlled by the customer. The owner of the property is responsible for ensuring that posts are neat and adequate in strength and size.
When installing centralized delivery equipment, such as CBUs or STD-4C (4C) equipment, the mailboxes must be safely located so that customers are not required to travel an unreasonable distance to obtain their mail. Typically, mailbox receptacles are located within 1 block of the residence.
When new developments, either residential or commercial, are in the design phase, developers or architects must meet with the USPS Growth Manager to ensure that safe and durable receptacles are properly specified and located in conformance with regulations. The Growth Manager will also meet with the builder at the appropriate time during the construction phase to review the physical mailroom installation and discuss coordination and timing of initiating mail delivery.
