The story
ANSI was most likely formed in 1918, when five engineering societies and three government agencies founded the American Engineering Standards Committee (AESC). In 1928, the AESC became the American Standards Association (ASA).
In 1966, the ASA was reorganized and became the United States of America Standards Institute (USASI).
In February 1969, Ralph Nader harshly criticized the USASI in public remarks as "manifestly deceptive" in several different ways. He specifically attacked the name USASI as improperly implying some kind of official connection with the federal government of the United States.
The present name was adopted in 1969.
Prior to 1918, these five founding engineering societies:
American Institute of Electrical Engineers (AIEE, now IEEE)
American Society of Mechanical Engineers (ASME)
American Society of Civil Engineers (ASCE)
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American Institute of Mining Engineers (AIME, now American Institute of Mining, Metallurgical, and Petroleum Engineers)
American Society for Testing and Materials (now ASTM International)
had been members of the United Engineering Society (UES). At the behest of the AIEE, they invited the U.S. government Departments of War, Navy (combined in 1947 to become the Department of Defense or DOD) and Commerce to join in founding a national standards organization.
According to Adam Stanton, the first permanent secretary and head of staff in 1919, AESC started as an ambitious program and little else. Staff for the first year consisted of one executive, Clifford B. LePage, who was on loan from a founding member, ASME. An annual budget of $7,500 was provided by the founding bodies.
In 1931, the organization (renamed ASA in 1928) became affiliated with the U.S. National Committee of the International Electrotechnical Commission (IEC), which had been formed in 1904 to develop electrical and electronics standards.
From Wikipedia’s article on American National Standards Institute, shared under CC BY-SA 4.0.5