The US Postal Service is banning international shipments of electronics with lithium batteries such as smartphones, laptops and iPads, because of the risk of fire.
From Wednesday, consumers may no longer make the shipments, including to army and diplomatic post offices.
That means friends and family will have to use more expensive private companies such as UPS and FedEx to ship electronics to US troops based abroad.
The Postal Service cited discussion by the International Civil Aviation Organisation and the Universal Postal Union. They issue semi-binding guidelines for global trade.
Officials expect that US consumers can resume shipments in most cases after January 1, once the agency develops a new policy "consistent with international standards".
Lithium batteries are believed to have caused at least two fires on cargo planes since 2006.
https://www.usps.com/(US Postal Service)