Temporary assignments shall be for terms of no greater than one year, provided that the initial assignment shall be for a term of no greater than four months. Where appropriate, the chief administrator may designate, pursuant to section 121.2 of this Part, a judge as eligible for being selected for temporary assignments over the course of a term of not more than one year. Judges shall be eligible for redesignation at the conclusion of a term pursuant to the procedure set forth in this section.