Membership includes the chief officer of each of the fifty state library programs in the United States, the District of Columbia, Puerto Rico, the US Virgin Islands, American Samoa, Guam, the Federated States of Micronesia, the Northern Mariana Islands, the Republic of Palau, the Republic of the Marshall Islands, as well as the ten provinces and three territories of Canada. Each member may designate an alternate, but each has only one vote.
