Wide 3373

Membership Information for: Optional Annex IV To The Protocol To The International Convention For The Prevention Of Pollution From Ships On Prevention Of Pollution By Sewage From Ships

Signed: 1978-02-17; Entered into force: 2003-09-27; Terminated:
Source for membership data: http://www.imo.org/en/About/Conventions/StatusOfConventions/Documents/Status%20-…
Date of last download from source: 2023-07-26
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 Maritime Organization (IMO) website. For inaccuracies, please notify the Project Director.
Country19781979198019811982198319841985198619871988198919901991199219931994199519961997199819992000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024
Ratifiers01571015162022252930323943505761647072747883894253000100022100100000
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Albania00000000000000000000000000000222222222222222222
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Angola00000000000000000000000112222222222222222222222
Antigua and Barbuda00000000001111111111111112222222222222222222222
Argentina00000000000000011111111112222222222222222222222
Australia00000000000000000000000000222222222222222222222
Austria00000000001111111111111112222222222222222222222
Azerbaijan00000000000000000000000000222222222222222222222
Bahamas00000000000000000000000000000000000000022222222
Bangladesh00000000000000000000000012222222222222222222222
Barbados00000000000000000000000112222222222222222222222
Belarus00000000000000001111111112222222222222222222222
Belgium00000000000000000011111112222222222222222222222
Belize00000000000000000111111112222222222222222222222
Benin00000000000000000000001112222222222222222222222
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Brazil00000000000000000111111112222222222222222222222
Bulgaria00000000000000011111111112222222222222222222222
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Cape Verde00000000000000000000000002222222222222222222222
Chile00000000000000001111111112222222222222222222222
China00000000000000000000000000001222222222222222222
Colombia00011111111111111111111111111222222222222222222
Comoros00000000000000000000001111111222222222222222222
Congo, Republic of the00000000000000000000000000222222222222222222222
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Cyprus00000000000000000000000000002222222222222222222
Czechia00000000000000011111111112222222222222222222222
Denmark00111111111111111111111112222222222222222222222
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Guinea00000000000000000000000012222222222222222222222
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Kenya00000000000000111111111112222222222222222222222
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Malta00000000000000000000000000000000022222222222222
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Mauritania00000000000000000001111112222222222222222222222
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Mexico00000000000000000000000000000000000000000000222
Moldova00000000000000000000000000012222222222222222222
Monaco00000000000000111111111112222222222222222222222
Mongolia00000000000000000000000001222222222222222222222
Montenegro00000000000000000000000000002222222222222222222
Morocco00000000000000011111111112222222222222222222222
Mozambique00000000000000000000000000012222222222222222222
Myanmar00000000000000000000000000000000000000222222222
Namibia00000000000000000000000000000000000000000022222
Netherlands00000000000000000000000000012222222222222222222
Nicaragua00000000000000000000000112222222222222222222222
Nigeria00000000000000000000000012222222222222222222222
Niue00000000000000000000000000000000002222222222222
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Oman00000011111111111111111112222222222222222222222
Pakistan00000000000000001111111112222222222222222222222
Palau00000000000000000000000000000000022222222222222
Panama00000001111111111111111112222222222222222222222
Papua New Guinea00000000000000011111111112222222222222222222222
Peru00111111111111111111111112222222222222222222222
Philippines00000000000000000000000112222222222222222222222
Poland00000000111111111111111112222222222222222222222
Portugal00000000011111111111111112222222222222222222222
Qatar00000000000000000000000000002222222222222222222
Romania00000000000000000000000000002222222222222222222
Russian Federation00000000011111111111111112222222222222222222222
Saint Kitts and Nevis00000000000000000001111112222222222222222222222
Saint Lucia00000000000000000000001112222222222222222222222
Saint Vincent and the Grenadines00000111111111111111111112222222222222222222222
Samoa00000000000000000000000012222222222222222222222
San Marino00000000000000000000000000000000000000000002222
Sao Tome and Principe00000000000000000000111112222222222222222222222
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Senegal00000000000000000001111112222222222222222222222
Serbia00000000000000000000000000002222222222222222222
Seychelles00000000000000000000000000000000000000000122222
Sierra Leone00000000000000000000000012222222222222222222222
Singapore00000000000000000000000000022222222222222222222
Slovakia00000000000000011111111112222222222222222222222
Slovenia00000000000001111111111112222222222222222222222
Solomon Islands00000000000000000000000000222222222222222222222
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Spain00000000000001111111111112222222222222222222222
Sri Lanka00000000000000000001111112222222222222222222222
Sudan00000000000000000000000000000000000002222222222
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Syria00000000000000000000000000002222222222222222222
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Ukraine00000000000000011111111112222222222222222222222
United Arab Emirates00000000000000000000000000000222222222222222222
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United States00000000000000000000000000000000000000000000000
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Vanuatu00000000000000000000000000222222222222222222222
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Viet Nam00000000000000000000000000000000000012222222222
Members (agreement in force)00000000000000000000000008996100112119121124126129131131131135139141142143145146147147147
Ratifiers01571015162022252930323943505761647072747883894253000100022100100000

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).