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Membership Information for: Amendment to article XXI of the International Hydrographic Organisation Convention

Signed: 1997-04-25; Entered into force: 2599-01-01; Terminated:
Source for membership data: https://verdragenbank.overheid.nl/en/Treaty/Details/008645.html
Date of last download from source: 2023-07-25
This is the IEADB's most current data on signature, ratification, entry into force, and other membership actions. The IEADB updates this data approximately once a year and tries to ensure it is current and accurate. For the most current data, visit the International Hydrographic Organization website. For inaccuracies, please notify the Project Director.
Country1997199819992000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024
Ratifiers0121417212324242424242424242424242424242424242424242424
Members (agreement in force)00000.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.5
Algeria0000111111111111111111111111
Argentina0001111111111111111111111111
Bahrain0111111111111111111111111111
Brazil0111111111111111111111111111
Canada0000111111111111111111111111
Chile0111111111111111111111111111
Croatia0111111111111111111111111111
Cuba0111111111111111111111111111
Finland0001111111111111111111111111
France0111111111111111111111111111
Greece0000111111111111111111111111
Indonesia0011111111111111111111111111
Italy0000011111111111111111111111
Mexico0000011111111111111111111111
Monaco0111111111111111111111111111
Netherlands0000111111111111111111111111
Norway0111111111111111111111111111
Oman0111111111111111111111111111
Pakistan0111111111111111111111111111
Peru0001111111111111111111111111
Slovenia0000001111111111111111111111
Spain0111111111111111111111111111
Sweden0000111111111111111111111111
Tunisia0011111111111111111111111111
Türkiye0111111111111111111111111111
Members (agreement in force)00000.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.50.5
Ratifiers0121417212324242424242424242424242424242424242424242424

Membership status is coded as follows:

  • Countries listed are those that have signed and/or ratified the IEA in question.
  • Legend:
    • 0 (pink): Signer: country signed but did not ratify IEA. Status is 0 for all countries until IEA enters into force.
    • 1 (yellow): Ratifier: country signed and ratified IEA but IEA had not entered into force. Status is 1 for countries that have ratified until IEA enters into force.
    • 2 (green):Member: country signed and ratified IEA and IEA has entered into force for that country.
    • Ratifier row is count of states that have ratified.
    • Membership row is count (not sum) of members.
  • If membership data source lacks entry into force date, membership is inferred from year of ratification, if that year occurs after entry into force year of IEA.
  • Status can return to 0 if an IEA is terminated or if a country withdraws. In rare cases, countries later re-join IEAs, with their status returning to 2.
  • Action tab: membership by Action, Country, Year, Month, Day.
  • Wide tab: Annual status data (countries as rows, years as columns).
  • Long tab: Annual status data in Stata format (Country, Year, Membership Status).