post office rules for repacing a multi-unit mailbox
I would like to replace the mailboxes for my 10-unit building. It will be recessed in the wall. Apparently the biggest they make is 7 doors so I will have to buy two 5-door units.
I'm guessing that the process goes something like this: I buy the mailboxes. The USPS installs a master lock on the boxes. I set a date with the USPS for the installation of the mailboxes into the wall. I distribute the new mailbox keys to the tenants, telling them when the new mailboxes will be installed. Finally I install the mailboxes.
Is this correct?
Also, I believe there are USPS rules as to the positioning of the mailboxes. Is there a website which gives me a clear, simple statement of the rules?
Anything else I should know?