On April 9, 2013, U.S. Citizenship and Immigration Services (USCIS) published a notice in the Federal Register clarifying the date by which the new Form I-9 must be used instead of prior versions of the form.  Employers are advised that they must use the new Form I-9 beginning on May 7 or they will be subject to penalties under Section 274A of the Immigration and Nationalization Act (INA), 8 U.S.C. 1324a.  On March 8, USCIS released a revised version of the Form I-9.  The new Form includes significant changes including expanded instructions, new information fields, and a two-page format.  Although the new Form I-9 was for immediate use, employers were given 60 days to adapt their internal processes. USCIS instructions were unclear whether the last date that prior versions of the Form I-9 could be was May 7 or May 8.  The original Federal Register notice itself was internally inconsistent on this, indicating both dates in different sections of the notice.  The April 9, 2013 notice clarifies that prior versions of the form cannot be used beginning on May 7.