430 Improperly Prepared Mail
If an item is improperly addressed, but the country of destination is legibly
written, dispatch it to the exchange office. The exchange office will determine
whether the address is sufficient.
Note: Due to heightened security, many foreign postal administrations
require complete sender and addressee information in roman letters and
arabic numerals on postal items.
432 Oversized or Undersized Items
Post Office facilities must return to the sender any item that is more than the
prescribed maximum size or is less than the prescribed minimum size. If the
sender is not known, the item must be dispatched to the mail recovery center.
433 Oversized Cards
Return oversized cards (those exceeding 9-1/4 x 4-3/4) to the sender. If the
sender is unknown, dispatch cards to the exchange office.
434 Reply-Paid Cards
a. Reply-paid cards, except International Business Reply items, are not
accepted as international mail.
b. Any outbound reply-paid cards bearing foreign postage (foreign
reply-paid cards) must be returned to the sender for proper U.S.
postage to be affixed. If there is no return address, send cards to mail
435 Detached Customs Declaration Forms
When a detached customs declaration form is found, attempt to locate the
related package and attach the form to it. If the package cannot be located,
dispose of the customs declaration form as waste.