A document published by ANSI that has been approved through the consensus process of public announcement and review. Each such standard must have been developed by an ANSI committee and must be revisited by the committee within five years for updating.

A document authorized by ANSI that has been approved through the consensus process of public announcement and review. Each of these standards must have been developed by an ANSI accredited committee and must be revisited by that committee within five years for update.

A set of rules governing the structures of data in a message format for the exchange of business and operational information. Each ANSI standard is developed by an ASC x12 committee and adopted by the full x12 committee through the consensus process of public announcement and review.

a set of programming language guidelines developed by the American National Standard for Information Systems Committee. The Standard specifies the form and interpretation of programs written in the C language. The Standard was created to promote portable and reliable C language programs that are easily maintained and can execute efficiently on a variety of host operating systems. The ANSI C Standard was later adopted by ISO as an international standard for the C language. The ISO Standard is identical to the ANSI Standard, except for minor editorial changes and the renumbering of the sections.

A published transaction set approved by ANSI. The standards are reviewed every six months.