Use this required form for every employee to verify legal employment eligibility. Starting 01/22/17, USCIS will only accept the 11/14/16 edition of this form. You can find the edition date at the bottom of the page on the form. Use these
I-9 - Employment Eligibility Verification - Instructions or
I-9 - Employment Eligibility Verification - Instructions - Spanish to assist you in properly completing the Form I-9.