The Americas Zone was one of three zones of regional competition in the 1999 Fed Cup.
Group I
Venue: Buenos Aires T.C., Buenos Aires, Argentina (outdoor clay) Date: 13–18 April
The ten teams were randomly divided into two pools of five teams to compete in round-robin competitions. The teams that finished first in the pools played-off to determine which team would partake in the World Group II Play-offs, while the teams that finished last in the pools would be relegated to Group II for 2000.
Pools
Play-off
advanced to World Group II Play-offs. and relegated to Group II in 2000.
Group II
Venue: Costa Rica Country Club, San José, Costa Rica (outdoor hard) Date: 23–27 February
The sixteen teams were randomly divided into four pools of four teams to compete in round-robin competitions. The top teams of each pool play-off in a two-round knockout stage with the two winners advancing to Group I for 2000.
Pools
Knockout stage
and advanced to Group I for 2000.