On Nov. 7, 2007 the U.S. Citizenship and Immigration Service revised the I-9 Form, the Employment Eligibility Verification Form. This revised form dated 6/05/07 is the only form that is accepted for employment verification. For information about the changes, please see the USCIS Update and Q&A. For further information, you may review the Handbook for Employers.
I-9 forms must be completed by all newly hired employees, including staff, elected officers, trustees, advocates, and shop stewards, if they are on the union payroll and/or receive payment of expenses. The I-9 Form is required by the U.S. Department of Justice to verify employment eligibility, and must be completed even if employment is temporary or part time.
Employers use W-4 forms to collect the information they need to calculate payroll withholdings for their employees. Unions should ask their employees to complete W-4 forms every year.