The Fed Cup is to be renamed the Billie Jean King Cup after the former tennis great and founder of the Women's Tennis Association (WTA).
American King, 76, is one of the greatest female tennis players of all time and won 39 Grand Slam titles in singles and doubles competitions.
She is an advocate for gender equality and in 1973 won the Battle of the Sexes match against Bobby Riggs.
The Fed Cup is women's tennis' premier international team competition.
It was launched in 1963 and the United States are the most successful team in Fed Cup history having won the tournament 18 times.