1. Sections 205.975 to 205.990 shall not affect the validity of community mental health centers and other providers of any comprehensive mental health services as designated by the department and governing boards of such centers and providers established and appointed before a county or combination of counties elects to provide funds to accomplish the purposes as set out in sections 205.975 to 205.990. However, this section shall not be construed to preclude reconstitution of the centers or other entities and their governing boards to include all or a portion of the board of trustees.

2. Nothing in sections 205.975 to 205.990 shall preclude a board of trustees of a service area within a county or of a combination of counties within a service area from contracting with an existing public facility or not-for-profit organization to provide any comprehensive mental health services for the residents of the county or the area to be served.