28 Miss. Code R. § 305-2.15
Unless otherwise provided in writing by the Executive Director, employee's initial six (6) months of service with the Port Authority or employee's initial six (6) months of service in a new position at the Port Authority, constitutes a probationary period. This trial period enables employees to become better acquainted with their new job responsibilities and helps them to form a better understanding of the work expected of them. It is an employee's chance to show his or her ability and willingness to do the job. This probationary period is strictly a trial and does not create a contract of employment, nor change the relationship between MSPA and its employees as employment-at-will. Employees may be returned to their previously held position or terminated without notice at any time during their tenure of employment for any reason or no reason at all. Normal disciplinary measures do not apply, and no hearing is required. Successful completion of the probationary period does not alter the employment-at-will relationship between the employee and the MSPA.
28 Miss. Code. R. § 305-2.15