NMIJInternational Metrology Cooperation Office

International Cooperation Office
AIST Tsukuba Central 3, Tsukuba,
Ibaraki 305-8563, Japan

TEL +81-29-861-4149
FAX +81-29-861-4202



The OIML (International Organization of Legal Metrology) is an Inter-Governmental Treaty Organization which was established in 1955 for the harmonization of national regulations in legal metrology. OIML aims to facilitate both removal of technical barriers to trade (TBT) and provision of mutual recognition arrangement for type approval regarding measuring instruments. OIML is an observer of WTO/TBT committee, where it is recognized as a key standard-setting organization. Currently the OIML comprises 61 Member States and 61 Corresponding Members, and Japan signed the Treaty in 1961.

Dr. Yukinobu Miki (Vice President of AIST) serves as the CIML member of Japan as well as CIML Second Vice President. The International Cooperation Office (ICO) of NMIJ, AIST, serves as the secretariat for the CIML member. ICO transfers the domestic stakeholders’ opinions submitted through a mirror committee (Japan Committee for Survey Research on International Legal Metrology) to OIML.

Website: http://www.oiml.org