As of November 2023[update], the
International Hydrographic Organization (IHO) comprised 99 Member States, two of which are suspended because of their lapsed annual financial contribution. The IHO identifies its representative member organisations as the respective national
hydrographic office(s). These organisations may themselves be part of wider national maritime or other administrations covering a larger range of tasks – such as the national organisations for transport, maritime regulation, environment, defence or
oceanography. For example, in
Norway and
New Zealand the
hydrographic offices are sub-organisations of the country's national geodata organisation; in the
UK and
France, they are part of the Ministry of Defence; in
Finland the
hydrographic Office is part of the department of transport. The up to date list of IHO Member States, their representative organisations and contact details are maintained in the IHO Yearbook - available at www.iho.int
As of November 2023[update], the
International Hydrographic Organization (IHO) comprised 99 Member States, two of which are suspended because of their lapsed annual financial contribution. The IHO identifies its representative member organisations as the respective national
hydrographic office(s). These organisations may themselves be part of wider national maritime or other administrations covering a larger range of tasks – such as the national organisations for transport, maritime regulation, environment, defence or
oceanography. For example, in
Norway and
New Zealand the
hydrographic offices are sub-organisations of the country's national geodata organisation; in the
UK and
France, they are part of the Ministry of Defence; in
Finland the
hydrographic Office is part of the department of transport. The up to date list of IHO Member States, their representative organisations and contact details are maintained in the IHO Yearbook - available at www.iho.int