It may also have been because of the end of the de minimis ($800) tariff exemption. Without that exemption, even something valued at one cent would have to go through the import-tax collection process, which meant that small packages were no longer economical to send. That exemption is still gone.
It may also have been because of the end of the de minimis ($800) tariff exemption. Without that exemption, even something valued at one cent would have to go through the import-tax collection process, which meant that small packages were no longer economical to send. That exemption is still gone.