how long NVC will take to approve my civil documents verification check

[ameepatel]

Hi
I have filled my DS 260 and I846 forum, paid the fees, send my AOS documents
I have submitted my civil documents before, but they said me to send again my marriage and birth certificate. Before they took 28 days to review my documents
So I send them again, will it take the same time for verification... Does NVC will take again 30 business days to review my documents