Status of participation in the Metre Convention:
Member of the Metre Convention since 1911.

Signatory to the Mutual Recognition Arrangement (CIPM MRA):
Bulgarian Institute of Metrology (October 14, 1999)
(Has the right to use the CIPM MRA logo since September 12, 2006)

https://www.bipm.org/en/about-us/member-states/bg/

Bulgaria receives its NMI QMS recognition within EURAMET.

Bulgaria publishes its CMC data through EURAMET.

KCDB: https://www.bipm.org/kcdb/cmc/quick-search?keywords=Bulgaria