交485申請表的時候，在是否要SSN那項選了Yes，485批準後是否自動寄給我新的SSN，或者是還需要自己到相關部門去申請？自己去大概多久拿到新的SSN？
如果SSN號碼與原來的相同，有必要去換新的SSN嗎？
- Yes, you need to go to the local SSA Office to update your SSN card though your SSN number will remain the same. Your new SSN card will not contain "VALID FOR WORK ONLY WITH DHS AUTHORIZATION".
Also don't forget to show your green card to your employer.
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