Observe · Regulate · Protect — since 2007. 19th OIMAP General Assembly: Singapore, 10–12 June 2026. Programme
Regulation

States parties to the UNESCO Convention 1970

Which States have ratified the 1970 Convention: global situation, situation of OIMAP Member States and monitoring of ratifications.

Updated : October 28, 2026· 3 min read

About 140 States parties

Pastoral Landscape with Ruins and a Ford, Gerhardt Janssen (1722)
Pastoral Landscape with Ruins and a Ford, Gerhardt Janssen (1722)

About 140 States are parties to the 1970 Convention. Of the 67 OIMAP Member States, 61 have ratified it; the other six are invited to do so under the annual monitoring.

Ratification is not a formality: it requires the adoption of laws, the creation of services and the setting up of inventories. A State party undertakes not to facilitate the entry of property stolen elsewhere.

This page presents the global situation, that of OIMAP Member States and how to check a State's status.

  • States parties
  • Ratification
  • Monitoring

States parties to the UNESCO Convention 1970 in figures

≈140States parties worldwide
61OIMAP Member States that are parties
6Member States invited to ratify
5Ratifications since 2019

Source: OIMAP Legal Affairs Department.

Breakdown

Europe26
Asia-Pacific13
Americas10
Africa7
Middle East5

OIMAP Member States that are parties, by region.

A growing membership

The number of States parties has risen steadily since 1972, with a surge after several major importing countries joined in the 2000s. The latest ratifications mainly concern States in Africa and Asia, which have significant heritage and need a framework for cooperation.

OIMAP's annual monitoring lists, for each Member State, the date of ratification, the implementing law, and the existence of an inventory and an export certificate. It feeds a public dashboard.

Portrait of John VIII Palaoelogus, Emperor of Constantinople, 1424-1428 (reverse), Pisanello (c. 1438–1439)
Portrait of John VIII Palaoelogus, Emperor of Constantinople, 1424-1428 (reverse), Pisanello (c. 1438–1439)
The Triumph of Mordecai, Lucas van Leyden (1515)
The Triumph of Mordecai, Lucas van Leyden (1515)
The Dance at the Court of Herod, Israhel van Meckenem (c. 1500)
The Dance at the Court of Herod, Israhel van Meckenem (c. 1500)

How to check a State's status

A State's official status is kept up to date by UNESCO, the Convention's depositary. OIMAP reproduces the information in each Member State's sheet, with additional details on transposition and national procedures.

For an operator, the useful question is not only whether the State is a party, but since when, with what reservations and which law. A recent ratification may not yet have produced an implementing law, which leaves an area of uncertainty.

Annual monitoring

Each year, the Secretariat publishes a dashboard on the implementation of the Convention in Member States: ratifications, laws, inventories, export certificates, restitutions obtained. This dashboard is the basis for dialogue with national focal points.

States invited to ratify are supported by OIMAP lawyers, who help them understand the obligations, assess the legislative adjustments needed and plan a realistic calendar.

The situation by region

Ratifications by region
RegionOIMAP Member StatesParties to the ConventionRate
Europe272696%
Asia-Pacific141393%
Americas111091%
Africa8788%
Middle East7571%

Landmarks

  1. Entry into force

    First wave of ratifications.

  2. Enlargement

    Accession of importing States.

  3. More than 120 States

    Broad membership.

  4. 61 OIMAP Member States

    Rate of 91%.

Reservations and declarations

State party or non-party State

India. Benares. Aurangzeb's Mosque, after a photo by Dr. Kurt Boeck, Photoglob Co. (c. 1890–1910)

State party

Has ratified the Convention
  • International obligations
  • Implementing laws
  • Active cooperation

The safest framework.

Coronation of the Virgin, Christoffel Jegher (1632–36)

Non-party State

Has not ratified
  • No treaty obligation
  • National rules alone
  • Increased vigilance

To be treated with caution.

Seal Color Box (1662–1722)
Seal Color Box (1662–1722)
Karnak, Les Pylônes d'Horus, Henri Béchard (1860s)
Karnak, Les Pylônes d'Horus, Henri Béchard (1860s)
Egypt & Nubia, Volume III, No. 8: Mosque of Sultan Hassan, Cairo, Louis Haghe (1842–49)
Egypt & Nubia, Volume III, No. 8: Mosque of Sultan Hassan, Cairo, Louis Haghe (1842–49)

Checking a State before an operation

  1. Identify

    Identify the State of origin and the State of arrival.

  2. Consult

    Read the State's sheet.

  3. Check

    Check law and reservations.

  4. Document

    Keep the sheet.

  5. Decide

    Adapt the due diligence.

Items to check

A diplomat

Temple at Naveshera, Kashmir, India, Samuel Bourne (1864)
« Every ratification is a small step towards a cleaner market: it creates an obligation to cooperate. »
Samuel Okeke, former delegate to UNESCO

Vocabulary of ratifications

Ratification
Act by which a State undertakes to respect a treaty.
Reservation
Exception to the application of a provision.
Depositary
Organisation that holds the instruments of ratification.
Accession
Entry into a treaty one did not take part in originally.

Frequently asked questions

Where can I see the official list?

From UNESCO, the depositary.

Which OIMAP Member States are not parties?

Six States, listed in the annual monitoring.

What does ratification change for an operator?

It makes national implementing laws applicable.

How does OIMAP help with ratification?

Through legal advice and training: see Recommendations to States.

Useful documents

Contacts

The Pyramid of Cestius, Rome, Michiel van Overbeek (c. 1650–80)
The Pyramid of Cestius, Rome, Michiel van Overbeek (c. 1650–80)
Legal Affairs DepartmentParis — Headquarters+33 1 00 00 02 00juridique@oimap.exampleMonday to Friday, 9 am – 5 pm

Read the commentaries

Mercury (Budha), from a Mandi Astrology Series, Sanju (c. 1810)

Understand the interpretation of the text.

Commentaries
Image credits (16)
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