Applicability of provisions

Nothing contained in part 1 of this article or this part 4 shall be construed to affect or apply to any trust, association, or nonprofit corporation which is established and administered by an employer, a labor organization or labor organizations, or jointly by an employer and a labor organization or labor organizations, and which on or after July 6, 1973, provides or arranges for health-care services only for employees of such employer and members of the families of such employees, or only for members of such labor organization or labor organizations and the families of such members, and for no other person or persons.