a. Joint agreements shall set forth the categories of work, materials or supplies to be purchased, the manner of advertising for bids and of awarding of contracts, the method of payment by each participating State college or other governmental unit and other matters deemed necessary to carry out the purposes of the agreement.
b. Funds for each participant's share of expenditures for purchases under any joint agreement shall be appropriated and paid in the manner set forth in the agreement and in the same manner as appropriations are made for other expenses of the participant.