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For the purposes of this Convention:
1. Marine Aid to Navigation means a device, system or service, external to a vessel, designed and operated to enhance safe and efficient navigation of individual vessels and vessel traffic. For the purpose of the Organization this definition includes Vessel Traffic Services.
2. Member State means a State that has consented to be bound by this Convention and for which this Convention is in force.
3. Associate Member means a territory or group of territories for which a Member State has responsibility for its international relations and for which it has requested membership which has been approved by the General Assembly, and national members of the International Association of Marine Aids to Navigation and Lighthouse Authorities from States that are not Member States, in accordance with paragraph 5 of the Annex.
4. Affiliate Member means a manufacturer or distributor of Marine Aids to Navigation equipment for sale, or an organization providing Marine Aids to Navigation services or technical advice under contract and any other organization or scientific agency concerned with Marine Aids to Navigation which has applied for membership, and which has been approved by the Council.