34.070. In making purchases, the commissioner of administration or any agent of the state with purchasing power shall give preference to all commodities and tangible personal property manufactured, mined, produced or grown within the state of Missouri and to all firms, corporations or individuals doing business as Missouri firms, corporations or individuals, when quality is equal or better and delivered price is the same or less. The commissioner of administration or any agent of the state with purchasing power may also give such preference whenever competing bids, in their entirety, are comparable.
(RSMo 1939 § 14600, A.L. 1945 p. 1428 § 74, A.L. 1965 p. 144, A.L. 2003 S.B. 11, A.L. 2004 S.B. 1249)