Member State: United States of America
The United States of America was one of the initial signatories of the Metre Convention (20 May 1875).
It ratified the Convention and became a Member State on 2 August 1878.
CIPM MRA
Signatory/NMI
National Institute of Standards and Technology
Designated institute(s)
Naval Undersea Warfare Center Division Newport, Underwater Sound Reference Division
International recognition
BIPM services provided
Comparisons piloted by the BIPM
Calibration certificates issued by the BIPM
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Calibration certificate No.44 (2019)
- US
- NIST
Calibration certificate No.24 (2015)
- US
Calibration certificate No.19 (2015)
- US
Calibration certificate No.55 (2014)
- US
- NIST
Calibration certificate No.54 (2014)
- US
- NIST
Calibration certificate No.53 (2014)
- US
- NIST
Calibration certificate No.47 (2013)
- US
CBKT
Participation in the BIPM CBKT programme
KCDB 2.0 - CMC Writers (2025)
KCDB 2.0 - CMC Writers (2024)
KCDB 2.0 – Comparisons (2024)
The Role of RMO TC/WG Chairs in the CIPM MRA (2024)
qNMR Summer School (2024)
KCDB 2.0 - CMC Writers (2023)
KCDB 2.0 – Comparisons (2023)
2022 - BIPM-SIM Training course: KCDB 2.0 (2022)
KCDB 2.0 - CMC Writers (2022)
KCDB 2.0 - TC Chairs (2022)
KCDB 2.0 – Comparisons (2022)
2021 - BIPM-ILAC joint webinar: Mining KCDB 2.0 in the context of accreditation (2021)
2021 - CBKT Webinar: Accelerating CARICOM engagement in the CIPM MRA (2021)
KCDB 2.0 - CMC Writers (2020)
KCDB 2.0 - TC Chairs (2020)
2019 - Optimizing the CIPM MRA (2019)
2017 - Sound beginning in the CIPM MRA (2017)
2016 - Leaders of Tomorrow (2016)
National institute having sponsored a BIPM CBKT initiative (in full or in part)
NIST
2016 - Leaders of Tomorrow
NIST
2017 - Sound beginning in the CIPM MRA