Ala. Const. art. IV, § 69

All stationery, printing, paper, and fuel used in the legislative and other departments of government shall be furnished and the printing, binding, and distribution of laws, journals, department reports, and all other printing, binding, and repairing and furnishing the halls and rooms used for the meeting of the legislature and its committees, shall be performed under contract, to be given to the lowest responsible bidder below a maximum price, and under such regulations as shall be prescribed by law; no member or officer of any department of the government shall be in any way interested in such contract, and all such contracts shall be subject to the approval of the governor, auditor, and treasurer.