What is PS Form 3816 used for?

PS Form 3816 is specifically designed for use with Cash on Delivery (COD) mail services. This form is essential because it facilitates the process where the recipient pays for the item upon delivery, ensuring that the sender receives the payment before the recipient gets the package.

This form captures important transaction details, including the amount to be collected and helps in processing the payment securely. By using PS Form 3816, postal employees can efficiently manage COD transactions, ensuring that services are rendered smoothly both for the sender and the recipient.

The other options relate to separate postal services and forms. For instance, an insurance claim would typically involve a different form specifically designated for reporting and handling insurance-related issues. Certified mail tracking is usually done through specific tracking methods associated with certified mail, and returned merchandise authorization usually pertains to processes in retail for returning products purchased, which does not involve postal transaction forms like PS Form 3816. Thus, the distinct purpose of PS Form 3816 as related to COD transactions clearly makes it the correct choice.