What is the NVC role in the affidavit of support do they just check to be sure you send the I864 in? For example a person does not meet the income requirement and fills out the AOS sends it back to NVC do they just check making sure all forms are sent in then fowards it to the embassy and the CO makes the decision on wether you need to have a joint sponsor or not?

They are contractors doing a preliminary review. Their approval means nothing when it gets to the consular officer; they are not an authority of any kind! Their purpose is simply to prevent the petition from reaching the consulate if there are obvious problems with the papers or documents, to reduce the likelihood of 221(g).

hi

Many CO officers are asking for co-sponsors these days of late. I guess due to the load of applications Not all AOS are thoroughly checked.

Jigi

As far as I was aware, Claudeth's AOS petition didn't go anywhere near the NVC. It first went to Chicago and then to CSC

That was Adjustment of Status but this is Affidavit of Support, same acronym, different meaning.
In the case of consular processing Affidavit of Support needs to be sent to NVC.
In the case of Adjustment of Status processing Affidavit of Support does not need to be sent to NVC, but to USCIS.

I'm pretty sure the NVC will let you know if you don't meet the income requirements. They go over the entire I-864 form and verify the documentation you've sent along with it, if it's wrong or not good enough, you will probably receive an RFE from them.

Diana