What is 'ASC X9'

ASC (American Standards Committee) X9 is a body established by the American National Standards Institute (ANSI) to develop, establish, maintain and promote standards for the financial services industry with the goal of facilitating the delivery of financial services and products. The scope of activity for X9 was initially approved by the ANSI in 1974, and it was granted official accreditation in 1984.

BREAKING DOWN 'ASC X9'

ASC X9 operates under its own procedures as well as those prescribed and approved by ANSI. It operates numerous technical subcommittees and dozens of technical working groups that develop technical standards and guidelines for the financial industry. ASC X9 plays a crucial role in developing and adopting new technologies used in the banking, insurance and brokerage industries.

ASC X9 is the USA Technical Advisory Group (TAG) to the International Technical Committee on Financial Services ISO/TC 68 under the International Organization for Standardization (ISO), of Geneva, Switzerland, and submits X9 American National Standards to the international committee to be considered for adoption as international standards or ISO standards. Membership in ASC X9 is open to all U.S. domiciled companies and organizations in the financial services industry. ASX X9 develops, establishes, maintains, and promotes standards for the Financial Services Industry in the United States in order to facilitate delivery of financial services and products.

ASC X9 is composed of five subcommittees based on Financial Services business sectors:

  • X9A - Retail Payments (including mobile payments and a card not present fraud group)
  • X9B – Checks and Back-office Operations (all things related to checks)
  • X9C – Corporate Banking (B2B payments and the Balance Transaction Reporting Standard (BTRS) standard)
  • X9D – Securities (stocks and bonds, CUSIP);
  • X9F – Data & Information Security (methods and cryptography to secure financial data)

Examples of ASC X9 Standards In Use

Examples of ASC X9-developed standards commonly used today in the US and around the world are:

  • Paper and electronic check standards (X9 owns nearly 98 percent of the standardized real estate on the front and back of checks, the magnetic ink character record was originally developed by X9, the credit and debit card transactions standard operating all card transactions was also first developed under X9.
  • Numerous data security standards for financial services including the "PIN" personal identification standard in wide use today.
  • Data Encryption Standard (DES) and its successor Triple DES, the current encryption security algorithm, is used in securing most banking transactions all over the world.
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