1.1.3.1.1 File application electronically or by mail
Supporting documentation
Whether filed electronically or by mail, no supporting documentation will be filed with the ETA 9089. Instead, the employer must maintain supporting documentation in the event an audit is required or the Certifying Officer otherwise requests certain documents.  Such documentation, along with a copy of the ETA form, must be retained for five years from the date of filing ETA 9089.