21 周岁及以内的未婚子女可以与主申请一起移民美国，无论是 EB-1，EB-3 还是 EB-5，子女年龄要求都是 21 周岁。
对于某些移民家庭子女可能超龄的问题，除了尽早申请，选择正确项目外，还有 CSPA 美国儿童身份保护法案的年龄冻结政策，对某些家庭可能有用，请参考飞出国论坛其他帖子介绍。
Can the spouse and unmarried children under 21 of a multinational executive or manager gain permanent residency through this classification?
Yes. The spouse and unmarried children under 21 of a multinational executive or manager can gain permanent residency based on the principal alien.
Dependents may file Form I-485 (green card), Form I-131 (travel document), and Form I-765 (employment authorization) concurrently with or subsequent to the principal alien’s Form I-485.
需要获得相关移民及出国签证申请帮助可以联系飞出国微信（fcgvisabbs）： http://flyabroad.me/contact。
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