The Director of the Department of Administration shall promulgate rules and regulations in accordance with the Administrative Adjudication Law and this Article. Such regulations shall specify:

(a) that for any property or services not covered by items (b), (c) and (d) of this Section, the required payment date shall be the date on which payment is due under the terms of the contract for the provision of such property or service; or, if a specific date on which payment is due is not established by contract or by items (b), (c) and (d) of this Section, thirty (30) days after receipt of a proper invoice for the amount of the payment; and

(b) in the case of an acquisition of food product, a required payment date which is not later than fifteen (15) days after the date of delivery of such food product; and

(c) in case of an acquisition of a perishable agricultural commodity, a required payment date; and

(d) in the case of a contract under which property or services are provided in a series of partial executions or deliveries, to the extent that such contract provides for separate payment for such partial execution or delivery, such separate payment dates shall be the required payment dates; and

(e) a requirement that, within fifteen (15) days the date on which an invoice is received, that a government agency notify the business of any defect or impropriety in such invoice which would prevent the running of the time period specified in items (a), (b), (c) or (d) of this Section.