On March 8, 2013, the USCIS published a notice in the Federal Register announcing that it had recently revised the Employment Eligibility Verification form ("Form I-9"), and that employers must start using this new form by May 7, 2013. Employers using prior versions of the Form I-9 on or after May 8, 2013, will violate the law and be subject to worksite enforcement fines and other penalties.