The PMSA is governed by a Board which comprises of up to 8 members. Three Board members are each appointed by the Presbyterian Church and the Uniting Church and up to two members are directly appointed by the PMSA Board. The Board currently has a third independent appointment from its original charter which will cease at the June 2023 Annual General Meeting. Each Board member is a volunteer and holds office for up to three years per term. Board members are eligible for re-appointment up to a maximum period of nine years.