The employer must provide the school and the Department of Labor with an attestation that the employer recruited for the position for at least 60 days and that the student's wages will be comparable to those paid to lawful U.S. workers. The employment need not have any relationship to the student's field of study. Note also that time spent in pre-completion practical training is deducted from the 12 month maximum. Authorization for post-completion practical training may be granted for a maximum of 12 months and takes effect only after the student has graduated or completed a course of study. In any event, practical training must be completed within a 14-month period following the completion of studies.
Immigration laws are complex and do change.