Customs Duties

• Postal Service retail and delivery employees are required to collect customs duties and fees when delivering items that have an attached CBP Form 3419ALT. It’s in a clear plastic envelope with an orange border.
• If the package is refused by a customer, or otherwise undeliverable, fill out a PS Form 2933, Register of Uncollected Customs Charges. Submit it to the customs agency. By doing so, the Postal Service won’t be liable for paying these funds.

Following this policy means the Postal Service saves money by not paying customs for uncollected duties and fees, and revenue increases when postal fees are collected.

And that’s smart business.