How long do I have to wait to obtain GC cl5002006-03-08 13:29:40

I just send out form I-751 to remove my conditonal GC base on marriage. I just got receive letter which said that this going to take One year to obtain the GC. Does anyone know that I really have to wait one year? Thank you very much for your kindly answer.

I guess nobody has more authority than USCIS

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Typo: I do not think instead of I do think

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