How often must an employer verify the legal work eligibility of an employee after the initial filing of the I-9 Form?

The legal work eligibility of an employee must be verified by an employer at the time of hiring, but the ongoing verification of eligibility is not required on a regular basis after the initial I-9 Form is completed. Once an employer has completed the I-9 Form for a new employee, they do not need to re-verify work eligibility unless their situation changes, such as when an employee's visa status changes or if there is reasonable doubt about an employee's continued eligibility.

Employers are required to maintain the I-9 records for a specific duration, usually for three years after the date of hire or one year after the employee's termination, whichever is longer. Therefore, the correct option indicates that verification is only necessary when a new employee is hired since that is the time when their eligibility must be evidenced and documented. Regular checks beyond this initial filing are not a requirement under immigration law.

Other choices imply either a frequent verification schedule, which is not mandated, or a lack of need for any further verification after initial employment has been established.