Final answer:
E-Verify is not a substitute for I-9 verification; it is a complementary online system that must be used in conjunction with the I-9 form, and employers must still complete and retain the Form I-9.
Step-by-step explanation:
The Immigration Reform and Control Act of 1986 introduced requirements for employers to verify the legal status of their employees. As part of these requirements, the I-9 form was established, which every employee must complete to document their identity and work authorization. However, the use of E-Verify, which is an internet-based system that compares information from an employee's I-9 form to data from U.S. government databases, is not a substitute but rather a complement to the I-9 verification process. Employers must still complete and retain a Form I-9, even if they use E-Verify.