Alabama constitution
Article XIV: education
Section 260

Except as they may be specifically set aside in trust funds or otherwise applied to the payment of indebtedness, all proceeds of income or other taxes levied by the state, and of all special ad valorem or other taxes levied by counties and other municipalities, or school districts, pursuant to the Constitution as heretofore amended, for public school purposes, shall be applied to the support and furtherance of education pursuant to section 256 of the Constitution, as amended.