As used in this act:

    (a) "Child" means an individual under 18 years of age.

    (b) "Court-appointed special advocate child" or "CASA child" means a child under the jurisdiction of the court.

    (c) "Court-appointed special advocate program" or "CASA program" means a program established under section 3.

    (d) "Court-appointed special advocate volunteer", "CASA volunteer", or "volunteer" means an individual appointed by a court under section 7.

    (e) "Program director" means the director of a CASA program.