As of April 30, 2013, U.S. Customs and Border Protection (CBP) no longer issues the self-completed paper Form I-94 card at the airport or via aircraft carrier as had been the procedure for many years. Foreign travelers' may recall handwriting their names, country of citizenship, and date of birth on a small white perforated card while en-route to the U.S. It had fascinated many that this small white handwritten card served as ones primary lawful status document, and in many cases, employment authorization document, which often contained illegible date stamps and/or errors.