Mont. Code Ann. § 22-1-102

The commission shall employ as its executive officer a librarian, who is a graduate of an accredited library school and is not a member of the commission, for such compensation as the commission considers adequate. The executive officer shall perform the duties assigned by the commission and serve at the will of the commission. The commission may also employ such other assistants as are required for the performance of the commission's work. In addition to their salaries while on commission business, the librarian and assistants shall be allowed their travel expenses, as provided for in 2-18-501 through 2-18-503, as amended.