Restrictions on travel to Cuba have been a key and often contentious component in U.S. efforts to isolate Cuba's communist government since the early 1960s. Under the George W. Bush Administration, restrictions on travel and on private remittances to Cuba were tightened. In March 2003, the Administration eliminated travel for people-to-people educational exchanges unrelated to academic coursework. In June 2004, the Administration further restricted family and educational travel, eliminated the category of fully-hosted travel, and restricted remittances so that they could only be sent to the remitter's immediate family