How long for I-140 Approval

[djayash]

Hi,

My PERM just got approved and my employer has initiated the I-140 process today. I would need to submit the documents and send the singed ETA 9089 form back to my Employer. (yet to receive it from them)

Assuming I do all these, how long does it usually take from the date of submission to approval of I-140 under EB3 category.

Thanks,
Deepak