Notwithstanding any other provision of law or any agreement between a receiving district and a sending district, the school board of a receiving district and the school board of a sending district may mutually agree upon a showing of hardship by pupils from a sending district to exempt such pupils from any agreement requiring them to attend the receiving district’s schools. A pupil exempted from such agreement would make suitable arrangements to attend school outside the receiving district. The sending district shall be liable for tuition payments to the district of actual attendance. Any exception so granted shall be for the period of one school year and shall be renewed only upon mutual agreement between the school boards concerned. In the case of the withdrawal of accreditation by the accrediting agency of the school attended in the receiving district, and by application of the person having custody of the pupil, the board of the sending district may agree to exempt pupils from a sending district from any agreement requiring them to attend the receiving district’s schools. If the sending district grants the exemption, this exemption provision shall remain in effect until the accreditation of the receiving school is reinstated. A pupil exempted under this section may complete the academic year in the school to which the pupil is assigned. The provisions of this section shall apply only to area agreements negotiated on or after the effective date of this act unless the agreement indicates otherwise.