Unlike tax forms, for example, I-9 forms are not filed with the U.S. government. The requirement is for employers to maintain I-9 records in their own files for three years after the date of hire or one year after the date the employee's employment is terminated, whichever is later. This means that Form I-9 needs to be retained for all current employees, as well as terminated employees whose records remain within the retention period. Form I-9 records may be stored at the worksite to which they relate or at a company headquarters (or other) location, but the storage choice must make it possible for the documents to be transmitted to the worksite within three days of an official request for production of the documents for inspection.
As a new employee you must complete Section 1 of a Form I-9 no later than close of business on your first day of work. Your signature holds you responsible for the accuracy of the information provided. Your employer is responsible for ensuring that you complete Section 1 in full.