求助！！老公綠卡申請配偶獲得批準，請問之後的程序?

今天收到移民局的來信，老公2007年7月以綠卡持有人配偶的名義提出的申請得到批準，信上的內容如下：
The above petition has been approved. We have sent the original visa petition to the Department of State National Visa Center. NVC processes all approved immigrant visa petition that need consular action. It also determines which consular post is the appropriate consulate to complete visa precessing. NVC will then forward the approved petition to that consulate.

我有點不太明白之後的程序到底是什麽，我是否需要離境等待？還有大致還有多長時間我可以轉換身份？請各位大俠幫幫忙，萬分感謝！

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• 回複：求助！！老公綠卡申請配偶獲得批準，請問之後的程序? -pjiang- ♀ (323 bytes) () 11/23/2009 postreply 22:40:06