Australia's postal service has temporarily suspended mail to the US and Puerto Rico in response to major changes to customs and import tariff rules.
The suspension will not apply to gifts under USD$100, letters and documents, Australia Post said.
But it will affect Business Contract, MyPost Business and Retail customers sending goods through the postal network.
The partial suspension begins on August 26 and will continue until further notice.
"Australia Post has taken this action in response to recent significant changes the US Government has made to customs and import tariff rules for parcels sent to the US," the national mail service said.
"Changes include the US suspending the De Minimis exemption for inbound goods (below USD$800) and requiring the pre-payment of tariffs prior t