Section 732(b) and (c) of 45 Pa.C.S. (relating to required contractual arrangements), provides that contracts for printing or reproduction of documents published under this part shall be given after reasonable public invitation for proposals, to the lowest responsible bidder below the maximum price and under the regulations as shall be prescribed by the Joint Committee, and that no officer or employe of the Commonwealth may be in any way interested in a purchase made by the Commonwealth under the contract or otherwise.
1 Pa. Code § 17.72