If the parties are unable to agree on a replacement within thirty (30) days, the cases envisaged for that appointed arbitrator or any new cases that would otherwise have been provided for that arbitrator in accordance with the procedure described in point 10.26(d), shall be heard by an arbitrator appointed on a case-by-case basis by the parties in accordance with the Aaa Arbitration Rules; until agreement is reached on a replacement. As soon as a party has notified the other party of its intention to dismiss an arbitrator, there shall be no new trial by that arbitrator and that arbitrator may not be informed of his or her dismissal until the parties have received one of his or her pending arbitral awards. 29.3 A letter of nomination from the FERP shall be sent by the President to the potential participant. The FERP letter of appointment indicates the required term of employment set by the President. The worker must send the president a written declaration on the acceptance of such an appointment to the FERP. Where the Chairperson finds that it is necessary to change the duration of employment due to the needs of the programme, the Chairperson and the participant shall endeavour to reach mutual agreement on an alternative. . . .