Freezem hier is de juiste link
http://www.dhs.gov/dhspublic/interapp/editorial/editorial_0525.xmlWhat do I need to do before I exit the U.S.?
US VISIT Exit procedures are being tested at the following airports:
Baltimore/Washington International
Chicago O’Hare International
Dallas/Fort Worth International
Denver International
Detroit Metropolitan Wayne County International
Fort Lauderdale-Hollywood International
Hartsfield-Jackson Atlanta International
Luis Muñoz Marin International in San Juan, Puerto Rico
Newark Liberty International
Philadelphia International
San Francisco International
Seattle-Tacoma International
The US-VISIT Exit procedures are also being tested at the following seaports:
Miami International Cruise Line Terminal,
Long Beach and San Pedro seaports near Los Angeles
If you leave from one of these ports, you are required to confirm your departure using US VISIT exit procedures. Your check out will include the scanning of your visa or passport and repeating the simple inkless fingerscanning process for first your left index finger and then your right index finger. A workstation attendant will be available if you need assistance. The exit confirmation will be added to your travel records to demonstrate compliance with the terms of your admission. Ultimately, most foreign visitors will be required to check out before leaving the United States.