My US mother petitioned my married sister (F3 category) for green card for all her family (husband + 2 kids, citizenship: Peru). Both kids are single & professionals. The youngest DOB: Jan 2, 1983. Petition file date: Feb 20/01. I-130 Notice of Approval date: March 18/02. Yesterday (Aug 14/09) my married sister received a letter saying that her petition has arrived at NVC for processing (finally, after 9.5 years of wait!!). As you can see, the youngest is now 26. Could she get her US residency under CSPA? If so, what paperwork/forms do we need? By the way, this letter my sister rec'd yesterday said "If you believe that the CSPA applies to this case, please send a detailed explanation to the NVC"- any idea what "detailed info" they need so the youngest gets her green card too?