Final answer:
When a package cannot be delivered, various cards or notices are left for the customer. These include delivery attempt notices, missed delivery cards for package pickup, and cards with instructions for packages left with neighbors or at secure locations.
Step-by-step explanation:
When a package cannot be delivered to a customer, a variety of cards or notices may be left. One common card is a delivery attempt notice, which informs the customer that an attempt was made to deliver the package but nobody was available to receive it. This card usually provides instructions on how to arrange for a redelivery or pickup from a local post office or delivery center.
Another card that may be left is a missed delivery card, which indicates that the package is being held at a local post office or delivery center for the customer to pick up. This card typically includes information such as the address of the post office or delivery center, the hours of operation, and any identification or documents required to claim the package.
In some cases, a package may also be left with a neighbor or at a nearby secure location. In these situations, a card may provide details on where the package can be found, such as the specific neighbor's address or the location of a lockbox or designated drop-off point.