我母親來美的時候，入境時給的I-94卡上隻有一個B2的蓋章，但沒有注明離境日期。當天我就打電話去海關問，接電話的人員說沒有關係，B2就是有六個月的滯留期。
記得以前入境，I-94卡上總是注明必須離境的日期。這次為什麽沒有離境日期，難道程序有所改動嗎？大家有沒有碰到類似的情況？謝謝！
-I think the CBP officer forgot to indicate the duration in the I-94 card. Your mother may go to the local CBP Deferred Inspection Office or any port of entry to fix it.
Find the CBP Deferred Inspection Office and the port of entry at these websites:
http://www.cbp.gov/xp/cgov/toolbox/contacts/cmcs/
http://www.cbp.gov/xp/cgov/toolbox/contacts/ports/
