Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

National Conference on Weights & Measures (NCWM) Related Reports

NCWM Annual Conference Reports


Note: Previous editions available upon request

SP 979: Reports of the National Conference on Weights and Measures (1905-2021)

This USB contains a compilation of the National Conference on Weights and Measures (NCWM) Annual Reports between the years 1905 and 2021 and is provided courtesy of the National Institute of Standards and Technology, Office of Weights and Measures (NIST OWM). The Reports of the Conference are in Adobe Acrobat PDF format and are fully searchable and printable.

You will need Adobe Acrobat Reader to access the reports. Adobe Acrobat Reader is available free from the Adobe website at:

Send an email to owm [at] to obtain a USB that provides you with the NCWM Conference Reports. You must provide your name, company affiliation and mailing address.

If you have questions or would like to contact NIST OWM: phone: (301) 975-4004 or e-mail: owm [at]


Created December 15, 2010, Updated June 22, 2023