American Contract Bridge League

[1] It is the largest such organization in North America having the stated mission "to promote, grow and sustain the game of bridge and serve the bridge-related interests of our Members."

In 1967, the American Contract Bridge League (ACBL) removed the final obstacle to ACBL membership for African-Americans when it included in its by-laws a rule that no person could be denied membership because of race, color, or creed[3] A not-for-profit organization, the ACBL was founded on December 23, 1937 in New York City and later moved its company headquarters to Greenwich, Connecticut, then to Memphis, Tennessee in 1971[4] and to Horn Lake, Mississippi in 2010.

[6] For many, the most significant role of the ACBL is its sanctioning of club games and tournaments to award masterpoints.

A player's masterpoint total can never decline except as part of a penalty imposed for ethics violations.

In addition to the Laws of Duplicate Bridge (named Laws of Duplicate Contract Bridge until 2008), the ACBL offers many other training and information resources at its official website including software supporting education and play of the game, The ACBL has also published the ACBL Bridge Series, a series of books written by Audrey Grant and designed to teach the game to beginners, as well as to help more experienced players review and expand upon their knowledge of the game.