USCIS Memo On Processing Of I-140s and H-1Bs Under AC21 Submitted by admin on Jun 6th 2008 PDF version AttachmentSize nufieldmemo6608.pdf147.04 KB Agency: USCISNonimmigrant Visas: H-1 VisaAC21 H-1 PortabilityGreen Card: Form I-140AC21 AOS Portability Add new comment PDF version