(a) To insure timely payment, while providing for transition to a fee for services rendered payment system under the medical assistance program the commissioner shall implement, for a limited period, a concurrent payment system for any eligible nongovernmental general hospital requesting participation to effectuate such transition. Eligible applicants must have:

1. (1) participated in a limited multi-hospital reimbursement demonstration project; and
2. (2) been receiving, in lieu of payment for services rendered, fixed weekly payments pursuant to a contractual agreement, during calendar years 1981 and 1982 or their contractual predecessors in a limited multi-hospital reimbursement demonstration project must have; and
3. (3) more than 25 percent of the patients serviced by the hospital eligible for medical assistance.