The Board of Trustees is the governing body of the Williamson Public Library, as regulated by New York State Education Law. Library Board members' appointments are approved by the Town of Williamson. The Library Board develops the library's budget and places any increases before the voters. The library board establishes policies for the daily operation of the library and oversees its financial operations and plan of service to the community. The Board meets on the third Thursday of each month at 4:30 pm.