Our Members

There are two categories of OIML Members

- Member States
- Corresponding Members

Click here for a map of all OIML Members

Member States are countries that have ratified the OIML Convention and that have officially sent the accession instrument to the French Government.

Corresponding Members are countries or economies that cannot, or do not yet wish to become Member States, but are interested in the work of the OIML and want to participate in it.

Member States

Member States are countries that have ratified the OIML Convention and that have officially sent the accession instrument to the French Government. Member States are morally obliged to implement as far as possible the decisions of the International Conference on Legal Metrology and in particular

to participate in the funding of the Organization by paying annual contributions as determined by the International Conference on Legal Metrology,
to attend or be represented at the annual meetings of the International Committee of Legal Metrology,
to attend, as far as possible, the meetings of the International Conference on Legal Metrology (held every four years),
to participate actively in the work of the Organization, and
to align their legal metrology regulations as far as possible with the relevant OIML Recommendations.

Member States may actively participate in the OIML Certification System (OIML-CS) by proposing OIML Issuing Authorities (IAs). These IAs, and their associated Test Laboratories, are approved by the OIML-CS Management Committee (MC) and are registered by the International Bureau of Legal Metrology (BIML - the permanent headquarters of the OIML). Once approved by the OIML-CS MC the OIML IAs are authorized to issue OIML Certificates which are registered and published by the BIML.

Member States may also participate in the OIML-CS by designating Utilizers in their country. Utilizers sign a Declaration stating that they will accept and utilize OIML Certificates and/or OIML type evaluation reports, issued by OIML IAs, as the basis for issuing national or regional type approvals.

Corresponding Members

Corresponding Members are countries or economies that cannot, or do not yet wish to become Member States, but are interested in the work of the OIML and want to participate in it. They may be represented by the governmental metrology authority, legal metrology authority or trade regulatory authority, or they can be represented by a national institution or institute responsible for legal metrology issues.

Corresponding Members pay an annual fee to the Organization. In return:

they receive information on OIML work in the same way as Member States,
they have access to all OIML Publications,
they may participate in the technical work of OIML Project Groups, without voting rights, but their comments on drafts are taken into account in the same way as Member States' comments,
they may attend the meetings of the OIML Conference and International Committee of Legal Metrology, but without voting rights, and
they may participate in the OIML-CS by designating Associates in their country. Associates sign a Declaration stating that they will accept OIML Certificates and/or OIML type evaluation reports, issued by OIML IAs, as the basis for issuing national or regional type approvals. Corresponding Members can participate as non-voting members in the OIML-CS MC.

Benefits of becoming an OIML Member State: click here.