24 November 2010 | 11:04AM EST
Due to additional security measures, Australia Post have advised that articles over 453g and all Express Courier International and Express Post International services will be subject to an additional $9 security surcharge and may face transit delays of up to 48 hours.
International post regulations for each country can be found on Australia Postís website here and any enquiries regarding the surcharge should be directed to Australia Post.
eBay is currently waiting for further news regarding the surcharge, however sellers are recommended to avoid using calculated shipping on items that ship to the US as the shipping calculator is not currently configured to include the surcharge.
The eBay Team