USPS Access / USPS Approved
Choose products with this listing when mailbox is to be accessed by the United States Postal Service via postal lock and key. Complying with postal specifications, these products are designed to accept a master postal lock which is issued and installed by your local postal authorities.
Private Access / Private Use
Choose products with this listing when the mailbox is not to be accessed by the United States Postal Service. Manufactured with high quality materials, these products are ideal for corporate mailrooms, private postal centers, government agencies, colleges and schools, banks, military bases, inter-company mail and many other applications.