The Global TestNet is open to any organization involved in land-based and/or shipboard testing for the certification of BWMS under the BWM Convention and relevant guidelines or other test protocols.
Global TestNet consists of member organizations, observers and advisors. Further, the Steering Committee consists of a president and two vice-presidents will lead and coordinate the activities of the network. The Secretariat, which is currently based at Plymouth Marine Laboratory, performs secretarial and administrative services in support of the network.
A Memorandum of Understanding (MoU) establishing the Global TestNet was signed on 21 October 2013 by representatives of ballast water treatment system testing organizations. The members are listed below: