ICCF U.S.A. is the member of the International Correspondence Chess Federation (ICCF) for the territory of the United States of America. The organization was formed in 1909 as Correspondence Chess League of New York but quickly expanded to become the Correspondence Chess League of America (CCLA). It has published The Chess Correspondent regularly since 1930.
The Correspondence Chess League of America (CCLA) was the first American chess club to become an ICCF affiliate. It was created in 1917 as a merger of four clubs, one of which was a Canadian club. The number of Canadians in CCLA diminished after the Canadian Chess Association took over the Canadian Correspondence Chess Championship.
CCLA accepted the invitation of the International Correspondence Chess Association (ICCA) to become a member in 1946. Participation began in 1947 with a team of 100 players competing against teams from Belgium, England, Finland, France, Holland, and Sweden conducted by ICCA. The first time the US was invited to play in an ICCF Olympiad event was in 1958. This was the Final Olympiad III team tourney in which the USSR was invited also to enter a team for the first time.
Walter Muir took over the CCLA post of ICCF-US Secretary in 1969. Muir started playing chess in 1917 and didn't stop until shortly before his death in December 1999. Muir's father was Canadian. As a result, Muir was active in both US and Canadian chess. He won the Canadian CCA championship eight times between 1928 and 1942. He is the first native born American to earn an ICCF Master Title. He had 520 games rated by ICCF at the end of 1997. He was awarded an Honorary Membership in ICCF in 1998.
Muir's promotional efforts increased US participation in ICCF events. He worked with John Cleeve of Canada to establish an ICCF North American Championship Invitational Tournament with five Canadian and ten USA players to be selected by the ICCF Secretaries of both countries. The North American Champion would be seeded into the World Championship Final. Today the winner is entered in only the ¾ final. The 1970 ICCF Congress agreed to this. The winner of the First North American Invitational Chess Championship was Robert G. Cross of the United States in 1971.