The WMO/RIC Tsukuba calibration laboratory conforms to ISO/IEC 17025 (JIS* Q 17025) standards, and is accredited under the Japan Calibration Service System (JCSS) operated in accordance with the ISO/IEC 17011 accreditation scheme. IA Japan - the certifying body that manages JCSS - is a signatory to the Mutual Recognition Arrangement (MRA) with the Asia Pacific Accreditation Cooperation (APAC) forum and the International Laboratory Accreditation Cooperation (ILAC) forum.

The laboratory complies with international MRA terms (JCSS accreditation no. JCSS0295).

*JIS: Japanese Industrial Standard