Idaho Code § 33-2615
Each regional system shall be governed by a board of directors, to be selected by and from the governing boards of the participating libraries.
Initially, as the system is formed, each participating library shall be entitled to one (1) representative on the system board, and those libraries legally serving a population base of more than ten thousand (10,000) shall also be entitled to a second representative.
Within two (2) weeks after receiving notice of approval of a petition for establishment, as provided for under this act, the board of each participating library shall select its representative or representatives, and certify the names and addresses of such representatives to the state librarian.
As additional libraries, now or hereafter established, petition to join the system, the board shall not exceed twenty-five (25) in number. When the board members total twenty-five (25), or earlier with the unanimous agreement of the participating boards, the system board shall develop a plan for equitable rotation of trustees, while retaining representation from a library in each county. The designated headquarters for the system shall always have representation on the board.
At their first meeting the members of the system board shall divide themselves by lot into terms of one (1) to five (5) years. Thereafter, all vacancies shall be filled in the same manner as the original appointments, and appointments to complete an unexpired term shall be for the residue of the term only.
No member of any system board shall serve on the system board for more than five (5) consecutive years, and in no event shall service on the system board exceed the term of office of the incumbent on the governing board of the participating library which he represents.
The system board shall annually elect from its membership a chairman and such other officers as it may deem necessary to conduct the affairs of the system.
Members of the system board may receive from the regional system their actual and necessary expenses while engaged in business of said system.
Idaho Code § 33-2615