The determination pursuant to WAC 392-184-020 of a student's level of academic ability and grade level of placement at the time of a former education center student's reentry shall be made by the principal of the common school of enrollment or such other school district authority as may be designated pursuant to school district policy. Such determination shall be made by the principal or other designated official only after consultation with one or more representatives of the education center which the student last attended and shall be based exclusively upon the principal's or other designated official's professional judgment of the following:

(1) The recommendations of the clinic representative(s);

(2) The student's performance while enrolled in the center; and

(3) The student's academic ability as documented by the results of standardized tests recently administered by the center or school district, or both.