28. Notwithstanding the provisions of P.L.1973, c.337 (C.26:2J-1 et seq.) to the contrary, a certificate of authority to establish and operate a health maintenance organization in this State shall not be issued or continued on or after the effective date of this act unless the health maintenance organization meets the requirements of P.L.1997, c.192 (C.26:2S-1 et al.) and regulations adopted thereto. The provisions of this section shall apply to all enrollee agreements in which the health maintenance organization has reserved the right to change the schedule of charges.