This may come as a surprise. The proposed federal mandate that would confirm an applicant’s immigration status will not be required of all employers. Labor and Employment Attorney Daniel Kaplan, a partner with Foley & Lardner LLP, blogs that E-Verify is mainly a voluntary program. “However, there are a number of companies that may be required to use E-Verify,” states Kaplan. For example, some federal contractors may have to use the free, Internet-based system to confirm employment eligibility. How will this affect your business and your clients?