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

Become an expert

Conditions, training, examination and accreditation procedure for becoming an OIMAP expert.

Updated : October 28, 2026· 3 min read

Joining a demanding network

Compass and Sun Dial (1700–1750)
Compass and Sun Dial (1700–1750)

Becoming an OIMAP expert means accepting to practise under oversight, with a duty of independence and an obligation of permanent training. In return, the expert works in a framework recognised in 67 States, with fair remuneration and legal protection.

Applications are open to any professional meeting the conditions, whatever their country. They are examined twice a year, in spring and autumn.

This page describes the conditions, the training path, the examination and the course of accreditation.

  • Conditions
  • Training
  • Examination
  • Accreditation

Accreditation in figures

10 yearsminimum experience
4 yearsduration
2sessions per year
1 in 3applications accepted

Conditions of application

The accreditation path

  1. ApplicationSpring or autumn

    Submission of the file: degrees, publications, references.

  2. Processing6 weeks

    Verification of the conditions and references.

  3. Training4 weeks

    OIMAP Academy programme.

  4. Examination1 day

    Ethics, practical cases, interview.

  5. Decision4 weeks

    Accreditation granted by the committee.

Portrait of a Woman, Corneille de Lyon (c. 1540)
Portrait of a Woman, Corneille de Lyon (c. 1540)
Leaf from a Lectionary with St. Luke (1057–1063)
Leaf from a Lectionary with St. Luke (1057–1063)
Portrait of a Woman, Gerard ter Borch (c. 1665)
Portrait of a Woman, Gerard ter Borch (c. 1665)

The training programme

Ten days of training
ModuleContentDuration
Legal frameworkConventions, directives, OIMAP procedure2 days
Expert assessment methodProtocol of Directive No. 2019-073 days
LaboratoriesReading scientific analyses2 days
EthicsIndependence, confidentiality, conflicts of interest2 days
Drafting the opinionReasoned opinion and degrees of certainty1 day

A demanding examination

First accreditation or renewal

Medal: In Commemoration of the Fiftieth Anniversary - The Warner and Swasey Company, Victor D. Brenner (1930)

First accreditation

New expert
  • Full ten-day training
  • Full examination
  • Four years

Full path.

Portraits of the Qianlong Emperor and His Twelve Consorts, Giuseppe Castiglione (1736–70s)

Renewal

Serving expert
  • Assessment of activity
  • Three-day continuing training
  • Four more years

Lighter path.

Origin of applications in 2024

Universities and museums44%
Independent professionals31%
Laboratories14%
Auction houses11%

Source: Certification Department (indicative).

Calendar of a session

  1. Opening

    Spring call for applications.

  2. Closure

    End of submission.

  3. Training

    Ten days at the Academy.

  4. Examination

    Tests and interview.

  5. Decision

    Accreditations granted.

Case study: a candidate

A restorer becomes an expert

Situation

A Kenyan restorer specialising in tribal arts submits her application.

Actions
  1. Favourable review of her file.
  2. Training in Nairobi, at the regional office.
  3. Examination passed with distinction.
Outcome

Four-year accreditation in tribal arts — Africa; first expert assessment six months later.

Bookplate:  Boylston Medical Library, George Girdler Smith (1806–39)
Bookplate: Boylston Medical Library, George Girdler Smith (1806–39)
Portrait of a Man, Possibly Sir Soulden Lawrence, John I Smart (1770)
Portrait of a Man, Possibly Sir Soulden Lawrence, John I Smart (1770)
Leaf from a Psalter and Prayerbook: Ornamental Border with Carnations, a Thistle, and a Cook Ladling Soup (verso) (c. 1524)
Leaf from a Psalter and Prayerbook: Ornamental Border with Carnations, a Thistle, and a Cook Ladling Soup (verso) (c. 1524)

Remuneration and status

The expert is paid per act, according to a public scale. They keep their professional activity, within the limits of the non-combination rules: they may neither buy, sell nor advise on the sale of a work they have examined, for two years.

They benefit from liability insurance paid for by OIMAP for opinions given in this framework, provided they have followed the procedure.

An expert's point of view

Portrait of a Woman, John I Smart (c. 1772)
« Being an OIMAP expert means knowing that you will be reread, contradicted and questioned. It is good discipline. »
Dr. Amara N'Diaye, chair of the certification committee

Vocabulary of accreditation

Application
Application for accreditation by a professional.
Jury
Panel of three members in charge of the interview.
Non-combination
Prohibition on holding certain roles at once.
Continuing training
Obligation of training during accreditation.

Frequently asked questions

Do you have to be an academic?

No: a qualification equivalent to a doctorate and ten years' experience suffice.

How much does the training cost?

It is funded by OIMAP for successful candidates.

Can I apply from a non-member State?

Yes, if you meet the conditions.

What happens if I fail the examination?

You may sit it again at the next session.

Useful documents

Contacts

Architectural Conference (c. 1622)
Architectural Conference (c. 1622)
Certification DepartmentParis — Headquarters+33 1 00 00 00 00certification@oimap.exampleMonday to Friday, 9 a.m. – 5 p.m.

Apply

A Lady Reading, Francis Seymour Haden (1833–1910)

Write to the Certification Department to receive the file.

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