(1)    General. Before the admission of a nonresident pupil to an elementary or a high school of a school district, the school board of that district shall make a written agreement with the pupil’s parent or guardian for the payment of tuition except when the tuition is otherwise chargeable under this subchapter. The tuition amount shall be calculated under s. 118.51 (16) (a) 3. except as follows:

      (a)    If the nonresident pupil attends school in the school district for less than a full school term, the tuition amount shall be prorated based on the number of days that school is in session and the nonresident pupil attends school in the school district.

      (b)    If the pupil is receiving special education or related services under subch. V of ch. 115, the tuition amount shall be calculated using the daily tuition rate under s. 121.83 for children receiving such special education and related services or an amount agreed to by the school board and the pupil’s parent or guardian.

   (2)   Special.

      (a)    A pupil whose parent or legal custodian is a resident of this state but not a resident of the school district may file with the school board of the district a written application for enrollment in the schools of the school district. The application shall be accompanied by a written declaration of the parent or legal custodian that the parent or legal custodian will establish residence in the school district by a specified time. If facilities are adequate, the school board may permit the pupil to enroll in the schools of the school district, and may require prepayment of a tuition fee for 9 school weeks or may waive the tuition requirement for that pupil. If the parent or legal custodian establishes residence in the school district within such 9 school weeks, the school board shall refund the tuition fee. If such residence is not established there shall be no refund of the tuition fee but another written application for enrollment may be filed for the next succeeding 9 school weeks and, upon prepayment of a tuition fee for such 9 school weeks, the school board may permit the pupil to reenroll. If the parent or legal custodian establishes residence in the school district within the second 9 school weeks, the school board shall refund the tuition fee for the second 9 school weeks.

      (b)    If the parent or legal custodian establishes residence in the school district prior to the expiration of the first 18 school weeks of the school term and if the pupil was enrolled in the school district on the 3rd Friday in September, the pupil shall be considered a resident pupil in computing general aid under subch. II.

      (c)    The parent or legal custodian of a pupil who is enrolled under this subsection shall be responsible for the transportation of such pupil to the school in which the pupil is so enrolled. No transportation aid under subch. IV may be paid for such transportation.