The OIML Certificate System for Measuring Instruments was introduced in 1991 to facilitate administrative procedures and lower costs associated with the international trade of measuring instruments subject to legal requirements.

The System provides the possibility for a manufacturer to obtain an OIML Certificate and a Test Report indicating that a given instrument type (pattern) complies with the requirements of relevant OIML International Recommendations.

Certificates are delivered by OIML Member States that have established one or several Issuing Authorities responsible for processing applications by manufacturers wishing to have their instrument types (patterns) certified.

OIML Certificates are accepted by national metrology services on a voluntary basis, and as the climate for mutual confidence and recognition of test results develops between OIML Members, the OIML Certificate System serves to simplify the type (pattern) approval process for manufacturers and metrology authorities by eliminating costly duplication of application and test procedures.

This database gives the list of OIML Certificates registered by the BIML, the list of categories of instrument covered by the System, the addresses of Issuing Authorities in OIML Member States that may issue OIML Certificates of conformity to these Recommendations (Issuing Authorities listed here), and those of recipients of certificates (applicants and manufacturers).

The list of categories of instruments covered by the System gives the references of the applicable Recommendations within the OIML Certificate System, and specifies the Member States (indicated by their ISO country codes) which have established an Issuing Authority for the relevant instrument category.

It is to be noted that in any given OIML Member State, there may be several Issuing Authorities for the various categories of measuring instruments covered by the System. For a given category, however, only one Issuing Authority may exist.

Other information on the OIML Certificate System for Measuring Instruments, particularly that which concerns the rules and conditions for application, issue, and use of OIML Certificates, may be found in the OIML Publication B 3 OIML Certificate System for Measuring Instruments (Edition 2003, ex. P 1) that may be downloaded in English and French from our web site and printed copies of which are available from the Bureau International de Métrologie Légale (BIML).

Note: The fee for registering an OIML certificate is currently 153 EUR.