What OEI is and how it works

The seat has stood in Madrid since 1954, some 6,700 kilometres from the nearest member capital across the Atlantic. Article 4 admits any Ibero-American state whose government asks to join and signs the Acta de Protocolización de los Estatutos, and nothing in the statutes says what Ibero-American means. Ministers of education govern between assemblies, and the field is education, science, technology and culture.

Counted from the members

Members
23
countries and territories
Founded
1949
1 January 1949
People
704.6 m
added up, counted 2017 to 2026
Economy
$9.3 tnGDP
added up, 2020 to 2025, World Bank
Per person
$13 191a head
the total over the population that produced it
Land area
20 575 997km²
added up from the member records

One article, and one signature

The statutes in force were signed at Panama City on 2 December 1985 and took effect the same day, by their own final article. Article 4 is the whole of the entry test: members are the Ibero-American states whose governments ask to join, accept incorporation, and sign the Acta de Protocolización de los Estatutos. No accession treaty is required, no ratification threshold, no waiting period, and no vote of the sitting members appears in the text at all. Colombia signed that act and then ratified at home by Ley 28 of 17 October 1960, which is the shape the process takes: a signature at the organisation, a domestic instrument afterwards.

Article 1 says what the body is and what it used to be called. It is an international organisation of governmental character for cooperation among Ibero-American countries in education, science, technology and culture, formerly the Oficina de Educación Iberoamericana, and its official languages are Spanish and Portuguese.

The word doing the work in Article 4 is Ibero-American, and the statutes never define it.

From a bureau to an organisation

The bureau was created in Madrid in 1949, out of the first Ibero-American Congress of Education held there. The second congress, at Quito in 1954, turned it into an intergovernmental organisation with a permanent seat at Madrid. The third, at Santo Domingo in 1957, approved the statutes that governed it until the Panama City text replaced them. Science, technology and culture join education in the name and in Article 1 at that 1985 revision, and the organisation acquired the initials it now uses.

Who decides what

Article 6 sets out a legislative organ, the General Assembly; two delegated organs, the Directive Council and the General Secretariat; and a consultative one, the Ibero-American Conferences.

The Assembly meets in ordinary session every four years, in the country the previous Assembly named for it. No delegation may seat more than five representatives, and each delegation has one vote. Governments, associated entities and international bodies invited as observers may send two delegates, who speak and do not vote. Amending the statutes takes two thirds of the Assembly; the programme of activities and the budget pass by simple majority.

Between assemblies the Directive Council governs, composed of the ministers of education of the member states or their representatives, and chaired by the education minister of the country where the next ordinary Assembly falls. The Secretary General is elected by the Assembly by absolute majority and stays in office until the next ordinary session, renewable once. Article 13 requires the Secretary General and any deputy to hold the nationality of different member states.

Article 18 funds the work from obligatory annual quotas paid by the members, with voluntary contributions, donations, the sale of publications and fees for technical services beside them. Article 22 keeps a place at the Directive Council for the Instituto de Cooperación Iberoamericana, which may speak there and may not vote, in its quality as founding body. A statement introducing the organisation to the United Nations Sixth Committee in October 2023 put its national offices in 19 of the member countries.

Two official languages, and the ones the members record

Article 2 commits the organisation to spreading Spanish and Portuguese and to improving how they are taught, and in the same clause to bilingual education that preserves identities expressed in the plurilingualism of the region. The member records show what that clause is for.

Bolivia's lists Aymara, Guarani, Quechua and Spanish. Peru's lists Aymara, Quechua and Spanish, Paraguay's Guarani and Spanish, Ecuador's Northern Quichua, Shuar and Spanish, Mexico's Nahuatl, Yucatec Maya and Spanish, and Venezuela's Spanish and Venezuelan Sign Language. Equatorial Guinea's lists Spanish, French and Portuguese. Andorra's lists Catalan and nothing else. Uruguay's lists no official language at all, none being fixed in law there.

What membership does not touch

Nothing in the statutes concerns tariffs, borders, currency or defence, and the roster shows it. The same members sit in Mercosur, in the Andean Community, in the Central American Integration System, in the European Union and its single currency, and in the Central African Economic and Monetary Community, arrangements that could not all be held at once by a body that asked anything about trade. This one asks about none of it. What a member owes is a signature and an annual quota.

The United Nations General Assembly granted the organisation observer status by resolution 78/117, adopted without a vote on 7 December 2023. The draft had been introduced in the Sixth Committee on behalf of twenty co-sponsors.

Where the edge is argued

Two members sit outside any reading of Ibero-American that a map or a language law would produce on its own.

Andorra lies in the Pyrenees with Spain on one side and France on the other, and Catalan is its one official language, in an organisation whose own languages are Spanish and Portuguese. Equatorial Guinea is in Central Africa, bordered by Cameroon and Gabon; it was administered from Madrid until independence on 12 October 1968, its record lists Spanish among three official languages, and it belongs to the Community of Portuguese Language Countries as well.

Article 4 hands that question to the governments that sign, and this catalogue records the membership rather than the reading behind it. Beside the members the organisation keeps observers, among them Portuguese-speaking states in Africa and in Asia that are not on the roster here. An observer speaks at the Assembly and does not vote, which Article 7 states plainly, and it is not membership.

Counted from the records

What OEI runs on

Landlocked members
3 of 23without a coast
In the United Nations
23 of 23every member holds a seat
Time zones
-08:00, -07:00, -06:00, -05:00, -04:00, -03:00, -02:00, -01:00, +00:00, +01:0010 offsets
Currencies
EUR, USD, ARS, VED, BOB, BRL, XAF, CLP, COP, CRC, CUP, DOP and 10 moreEUR in 3 of them
How they are filed
23 sovereign statesthe roster's own three statuses
Driving side
1 keep left · 22 keep right
Calling codes
+1809, +1829, +1849, +240, +34, +351, +376, +502, +503, +504, +505, +506, +507, +51 and 11 more

Common questions

Questions about OEI

Which countries belong to the Organization of Ibero-American States?

Andorra, Argentina, Bolivia, Brazil, Chile, Colombia, Costa Rica, Cuba, the Dominican Republic, Ecuador, El Salvador, Equatorial Guinea, Guatemala, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, Portugal, Spain, Uruguay and Venezuela, which is 23 states across three continents. Angola, Cabo Verde, Guinea-Bissau, Luxembourg, Mozambique, São Tomé and Príncipe and Timor-Leste hold observer status, which carries a voice at the General Assembly and no vote.

What does a country have to do to join the OEI?

Article 4 of the statutes asks for three things and stops: the government requests entry, accepts incorporation, and signs the Acta de Protocolización de los Estatutos. There is no accession treaty to negotiate and no admission vote written into the text. Ratification at home follows separately, as Colombia's did by Ley 28 of 17 October 1960. Thereafter Article 18 obliges the member to an annual quota.

Why is Equatorial Guinea a member of an Ibero-American organisation?

Because Article 4 admits Ibero-American states without saying what makes a state one. Equatorial Guinea lies in Central Africa between Cameroon and Gabon, was administered from Madrid until independence on 12 October 1968, and its record lists Spanish, French and Portuguese as official languages. It also belongs to the Community of Portuguese Language Countries. Whether an African state is Ibero-American is a reading this catalogue records rather than settles.

Why is Andorra a member when its official language is Catalan?

The statutes make Spanish and Portuguese the organisation's own languages in Article 1, but the membership article says nothing about the language of a member. Andorra lies in the Pyrenees with Spain to its south and France to its north, and its record lists Catalan and no other official language. Several members record languages the statutes do not name either, among them Guarani in Paraguay and Quechua in Peru and Bolivia.

Does the OEI have standing at the United Nations?

It has observer status in the General Assembly, granted by resolution 78/117, which was adopted without a vote on 7 December 2023. The draft had been introduced in the Sixth Committee on behalf of twenty co-sponsoring governments. Observer status allows the organisation to take part in the Assembly's work without a vote, and it does not make the OEI a specialised agency of the United Nations.

How the membership was established

The members listed on this site are the ones OEI publishes itself, read on 2026-09-02. Every other group here takes its membership from the statements on each country’s own record, which for this one are incomplete.

oei.int

Sources