Effective on April 26, 2013, a new U.S. Customs and Border Protection (CBP) rule went into effect to automate the Form I-94, "Arrival/ Departure Record." With the new automated Form I-94 process, CBP officers will create an electronic automated arrival record during the admissions process for nonimmigrants entering the United States at the port of entry. CBP will no longer issue a paper Form I-94 to most travelers.
For more information, visit CBP's webpage.
To obtain I-94 number online complete the online form in CBP's website.