An edifice of five floors

The legal framework of the art market can be pictured as a five-storey building: conventions, directives, national law, case law and good practices. Each storey rests on the one before.
This page describes each of them, shows how the rules apply to a concrete operation and recalls the five common principles that run through all the texts.
It serves as a starting point before consulting the detailed pages devoted to each convention, each directive and each sector regime.
Overview of the legal framework in figures
Source: OIMAP Legal Affairs Department.
The five floors
The conventions set the principles. The OIMAP directives break them down into obligations. National law completes them with sanctions and procedures. Case law, finally, clarifies their interpretation, while good practices ease their application.
An operator who reads only one floor is almost always mistaken: a prohibition in international law without the procedure of national law remains theoretical, and a good practice without a legal basis binds no one.



The five common principles
Five principles recur in all the texts. The first is lawfulness: one sells only what one may lawfully sell. The second is traceability: each work has a history that must be capable of being reconstructed. The third is due diligence: one checks before acting.
The fourth is transparency: one declares, records and keeps. The fifth is the protection of good faith: the acquirer who checked seriously is not sacrificed, but the one who did not try to find out is not protected.
OIMAP's role in the edifice
OIMAP is not a global legislator. It provides a framework of harmonisation that its Member States adopt freely: its directives are negotiated by the Assembly, then transposed. This method is slower than a regulation, but it respects national legal traditions.
The Secretariat supports this transposition through recommendations, training and a published annual follow-up. The Arbitral Tribunal, finally, offers a means of settlement for disputes that find no solution before national courts.
The five floors and their effect
| Floor | Nature | Effect for the operator |
|---|---|---|
| Conventions | Treaties | Set the principles and prohibitions |
| OIMAP directives | Texts of the organisation | Create the common obligations |
| National law | Laws and regulations | Set sanctions and procedures |
| Case law | Court and arbitration decisions | Clarify interpretation |
| Good practices | Guides and templates | Ease application |
Landmarks
- Qualify the work
Cultural property, ordinary work, protected object.
- Identify the States
Departure, transit, arrival.
- Apply the texts
Conventions, directives, national law.
- Check
Due diligence and documents.
- Keep
Records for ten years.
A text does not apply alone
Legal approach or practical approach

Legal approach
Reading the texts- Precision
- Completeness
- Needs a lawyer
For complex cases.

Practical approach
Checklists and templates- Speed
- Accessible to all
- Less fine-grained
For ordinary operations.



Applying the framework to an operation
- Qualify
Determine the nature of the work.
- Locate
Identify the States concerned.
- Search
Find the applicable texts.
- Check
Carry out due diligence.
- Decide
Conclude or give up.
Points to check
A law professor

« The law of the art market is a law of networks: no text can be understood without the others. »
Basic vocabulary
- Cultural property
- Object protected because of its historical or artistic interest.
- Lawfulness
- Compliance with the law.
- Good faith
- Legitimate ignorance of a defect.
- Case law
- All court decisions taken together.
Frequently asked questions
Where do I start?
With the Legal framework page, then with the convention that concerns your case.
Do arbitral decisions constitute case law?
They are published and inspire later decisions: see the case law.
Can States go further?
Yes, the texts set minimums.
Whom should I ask to interpret in case of doubt?
The Legal Affairs Department.
Useful documents
Contacts

See the consolidated texts
Image credits (16)
- The Calumny of Apelles, Giorgio Ghisi (1560) — Cleveland Museum of Art, CC0 1.0
- The Victory Banquet: from Battle Scenes of the Quelling of Rebellions in the Western Regions, with Imperial Poems (c. 1765–74; poem dated 1760) — Cleveland Museum of Art, CC0 1.0
- Dr. James Stuart; Mary Campbell Stuart, Gilbert Stuart (c. 1815) — Cleveland Museum of Art, CC0 1.0
- Seal Color Box (1662–1722) — Cleveland Museum of Art, CC0 1.0
- Sketches in Belgium and Germany, Volume I: Hall of Justice of the Magistrates du Franc, Bruges, Louis Haghe (1840) — Cleveland Museum of Art, CC0 1.0
- Portrait of John VIII Palaoelogus, Emperor of Constantinople, 1424-1428 (reverse), Pisanello (c. 1438–1439) — Cleveland Museum of Art, CC0 1.0
- The Antechamber of the Palace of Justice, Paris, Charles Meryon (1855) — Cleveland Museum of Art, CC0 1.0
- The Triumph of Mordecai, Lucas van Leyden (1515) — Cleveland Museum of Art, CC0 1.0
- The Judgment of Solomon and Esther before Ahasuerus (pair), Dirk Vellert (c. 1530) — Cleveland Museum of Art, CC0 1.0
- The Dance at the Court of Herod, Israhel van Meckenem (c. 1500) — Cleveland Museum of Art, CC0 1.0
- Coronation of the Virgin, Christoffel Jegher (1632–36) — Cleveland Museum of Art, CC0 1.0
- A Palace with an Arched Bridge (A Roman Villa), Hubert Robert (1760) — Cleveland Museum of Art, CC0 1.0
- Fish or Seal Club (X’ús’) (late 1800s–early 1900s) — Cleveland Museum of Art, CC0 1.0
- Letter Box, Ogata Kōrin (1700s) — Cleveland Museum of Art, CC0 1.0
- Hours of Queen Isabella the Catholic, Queen of Spain, Master of the First Prayerbook of Maximillian (c. 1500) — Cleveland Museum of Art, CC0 1.0
- Chemin de fer de Toulouse à Bayonne. Pont de l'Aran (en trois arches de 17m d'ouverture chacune). Situation des travaux au 21 juillet 1861, Édouard Baldus (1861) — Cleveland Museum of Art, CC0 1.0
Cleveland Museum of Art · CC0 1.0
Legal frameworkThe texts that frame the art market: international conventions, OIMAP directives and the domestic law of Member States.›
Consolidated textsUp-to-date versions of the main texts applicable to the art market, with dates of entry into force and amendments.›
Case law640 summarised court and arbitration decisions: authenticity, provenance, ownership, good faith, restitution and operators' liability.›