The legislative authority of any city or village may authorize, by ordinance, the director of public service, director of public safety, mayor, city manager, board of trustees of public affairs, village administrator, or other duly authorized contracting officer, commission, board, or authority to enter into a contract, without advertising and bidding, for services or the purchase of materiel, equipment, or supplies from any department, division, agency, or political subdivision of the state, or with a regional planning commission pursuant to division (D) of section 713.23 of the Revised Code. The ordinance authorizing such contracts shall:
(A) Designate the officer, commission, board, or other contracting authority authorized to make such contract;
(B) Set forth the maximum amount that may be paid as the purchase price for such services, materiel, equipment, or supplies;
(C) Describe the type of services, materiel, equipment, or supplies that may be purchased;
(D) Appropriate sufficient funds to meet the maximum amount that may be paid as the purchase price for such services, materiel, equipment, or supplies, unless funds have previously been appropriated and remain unencumbered for such purpose.