Ala. Code § 41-8-8

This article shall in no way affect the administration and supervision of public school libraries which have been or may hereafter be established by aid through the Department of Education, except by agreement, nor shall this article affect in any way the administration and supervision of public school libraries under the control of any city or county board of education, except by agreement; nor shall it, except by agreement, affect or apply to libraries of institutions of higher learning nor to free public libraries in counties where a city having a population of not less than 65,000 already maintains a free public library.