Answer: No, these mailboxes are for private delivery. Typically used in stores like "Mailboxes Etc". For USPS approved boxes checkout the 4C units http://www.budgetmailboxes.com/4c-horizontal-mailboxes.html
Question: I'm looking for a lock bracket for the brass mailbox. Is it available?
Answer: Yes, please visit http://www.budgetmailboxes.com/lock-bracket-for-brass-mailboxes---salsbury-industries-2085.html. Thank you.