USAP Air Post Office: Registered Mail
United States Antarctic Program United States Antarctic Program Logo National Science Foundation Logo
Alert
Read the latest information from NSF on coronavirus (COVID-19)
 

USAP Air Post Office Will No Longer Accept Registered Mail
 

  • Effective September 29, 2009, the U.S. Antarctic Program Air Post Office (APO) will no longer accept registered mail shipments.
     
  • Registered mail shipments in transit before September 29, 2009 will be delivered as intended and will not be returned to sender.