If a student has been expelled from any public school district in any state, or from a private, denominational or parochial school in any state, and the student has not completed the terms or time period of the expulsion, the student shall not be permitted to enroll in this School District until the expulsion period from such other school has expired unless the Lincoln Board of Education, in its sole and absolute discretion, upon a proper application, approves by a majority vote the enrollment of such student prior to expiration of the expulsion period. As a condition of enrollment, the Board may require attendance in an alternative school, class or educational program pursuant to Nebraska law until the terms or time period of the original underlying expulsion are completed. A student expelled from a private, denominational or parochial school or from any public school in another state will not be prohibited from enrolling in the public school district in which the student resides or in which the student has been accepted pursuant to the enrollment option program for any period of time beyond the time limits placed on expulsion, pursuant to the Student Discipline Act, or for any expulsion for an offense for which expulsion is not authorized for a public school student under such Act. For purposes of this policy, the term “expulsion” or “expelled” includes any removal from any school for a period in excess of twenty (20) school days.