This part 18 is repealed, effective January 1 of the sixth income tax year following the year in which the executive director files written certification with the revisor of statutes as specified in section 39-22-1001 (8) that a line has become available and the Special Olympics Colorado fund voluntary contribution is next in the queue, unless the voluntary contribution to the Special Olympics Colorado fund established by this part 18 is continued or reestablished by the general assembly acting by bill prior to said date.