For the purposes of parts 1, 2, 3, and 7 of this chapter, “voluntary benefits” means those benefits for which the premium is fully paid by enrolled members. The committees shall establish voluntary benefits as the committees deem necessary and reasonable to afford coverage beyond the basic health plan and, where applicable, any employer-paid basic term life and basic accidental death and dismemberment insurance benefit offered by the committees. Voluntary benefits may include, but are not limited to, dental, vision, long-term care, and disability insurance benefits.