Returning to the USA - Current Status
If you are not a U S citizen or a lawful permanent resident, please download your I-94 form on every new entry to the U.S. http://www.cbp.gov/I94. There may be an error on this admission document and the I-94 governs your lawful stay in the U.S. (not your passport, not your visa, not your prior petition approval). Notethat should you move within the United States, you are required to notify USCIS of your move within 10 days of your move here: https://egov.uscis.gov/coa/?