請問各位大俠，父母拿到綠卡後，需要申請social security number嗎？

來源: stopthinking 於 2013-10-17 07:20:39 [舊帖] [給我悄悄話] 本文已被閱讀：次

父母剛剛收到 welcome notice, 綠卡會在３周內寄到。拿到綠卡後，需要申請 social security number 嗎，每個居民都必須有social security number 嗎?

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