Cleveland Museum of Art · CC0 1.0Check an expert in seconds
The directory of accredited experts is public. It allows an applicant, a buyer or an administration to make sure that an expert is indeed accredited, in which specialty and until what date.
Each entry gives the name, specialty, period covered, country, languages and dates of accreditation. No personal contact details are published: contact goes through the Secretariat.
The directory presented online is an extract; it reflects the structure of the official file.
The directory in figures
Source: OIMAP Observatory, 2024.
Searching for an expert
- Choose the criterion
Name, specialty, country or period.
- Filter
Combine filters to refine.
- Read the entry
Specialty, languages, dates of accreditation.
- Check validity
Accreditation must cover the date of the opinion.
- Contact the Secretariat
For any request for introduction.
Information published in an entry
| Heading | Content |
|---|---|
| Name | Name and title of the expert |
| Specialty | One of the twelve specialties |
| Period | Chronological range of the expertise |
| Country | Country of affiliation |
| Languages | Working languages |
| Accreditation | Start and end year |
No public contact details
Accredited expert, active or expired
Active accreditation
End date later than today- May be appointed
- Opinion recognised
- Mentioned in the directory
Valid for any new case.
Expired accreditation
End date passed- Can no longer be appointed
- Previous opinions remain valid
- Removed from the directory on expiry
Certificates already issued remain valid.
Case study: checking an opinion received
A buyer checks a certificate
A buyer receives a certificate signed by an expert whose name he does not know.
- He searches the name in the directory.
- He notes the accreditation in 19th-century painting.
- The dates cover the issue of the certificate.
The buyer is reassured about the quality of the opinion.
Respect for privacy
The directory's data is limited to what is needed for verification. It is updated at each accreditation, renewal or withdrawal.
An expert may request the rectification of an item of information or the addition of a working language; they may not request deletion while they are accredited.
Updating the directory
- Publication
Full update.
- Accreditation
Entry or renewal.
- Retrieval
Immediate removal.
- Check
Verification of entries.
How to read an accreditation
An accreditation is valid from the start date to the end date indicated. An opinion given during this period remains valid after expiry: the certificate is not affected by the end of the accreditation of the expert who signed it.
However, a withdrawal for breach may lead to a review of the opinions given. In that case, the applicants concerned are informed by the Secretariat, which offers a new examination free of charge.
Why a public directory
« Trust cannot be decreed: it is verified. »
Vocabulary of the directory
- Entry
- Public notice of an expert.
- Period
- Chronological range of the specialty.
- Validity
- Start and end dates of accreditation.
- Retrieval
- Early end of accreditation by decision.
Frequently asked questions
Is the directory complete?
The online directory is an extract; the official list counts 360 experts.
Can I contact an expert?
No, all contact goes through the Secretariat.
How can I report an error?
Through the contact form.
Do withdrawn experts appear?
No, they are removed as soon as the decision is taken.
Contacts
Related pages
Become an expertConditions, training, examination and accreditation procedure for becoming an OIMAP expert.›
Code of ethicsThe ten principles binding on accredited experts: independence, impartiality, confidentiality, competence, prudence and transparency.›
PrinciplesIndependence, traceability, mutual recognition: the principles that guarantee the value of an OIMAP certificate.›
Become an expert
Image credits (16)
- Portrait of a Woman, John I Smart (c. 1772) — Cleveland Museum of Art, CC0 1.0
- Annunciation to the Shepherds: Leaf from a Book of Hours (1 of 6 Excised Leaves), Henri d'Orquevaulx (c. 1420–30) — Cleveland Museum of Art, CC0 1.0
- Portrait of a Woman, Agnolo Bronzino (c. 1550) — Cleveland Museum of Art, CC0 1.0
- Woman Sitting Reading , Georges Lemmen (1905) — Cleveland Museum of Art, CC0 1.0
- Portrait of a Woman, Giovanni Domenico Tiepolo (1762–70) — Cleveland Museum of Art, CC0 1.0
- Compass and Sun Dial (1700–1750) — Cleveland Museum of Art, CC0 1.0
- Portrait of a Man, Possibly Sir Soulden Lawrence, John I Smart (1770) — Cleveland Museum of Art, CC0 1.0
- High Class Students and Teachers at Bishop Cotton School, Shimla (verso), Raja Deen Dayal (c. 1882–87) — Cleveland Museum of Art, CC0 1.0
- Portrait of a Woman, Anna Claypoole Peale (1820) — Cleveland Museum of Art, CC0 1.0
- Turtleback Reading Lamp, Tiffany Glass & Decorating Company (c. 1895–1902) — Cleveland Museum of Art, CC0 1.0
- Portrait of a Woman, Gerard ter Borch (c. 1665) — Cleveland Museum of Art, CC0 1.0
- Small Mosque in the Kaiserbagh, Felice A. Beato (1858) — Cleveland Museum of Art, CC0 1.0
- Portrait of a Man, Louis Lafitte (1793) — The Metropolitan Museum of Art, CC0 1.0
- The Antechamber of the Palace of Justice, Paris, Charles Meryon (1855) — Cleveland Museum of Art, CC0 1.0
- Farmhouse on the Slope of a Hill, Fra Bartolommeo (c. 1508) — Cleveland Museum of Art, CC0 1.0
- St. Anthony Reading, Albrecht Dürer (1519) — Cleveland Museum of Art, CC0 1.0