Originally Posted by deiguer

I asked for 30 days so they gave it to me for 30 days. The only thing is that It would be 30 days from the day travel (this Sunday). But they actually gave me 30 days from the day I got it, which was the past Monday, so Im losing a week. But thank God, this should still just be enough time for me.

I noticed that in this case they only give one single sheet of paper. When you apply via the normal process they usually give you 2 pages, which are the same. I have read one was to present before boarding when you head back to US, and the other to give to the immigration officer in USA. I only got one single paper, so I imagine it would be to use once one arrives in USA, and I will not need to give anything back in my home country when boarding the plane.