The Group IV tournament was held March 23-29, in Cap Estate, Saint Lucia, on hard courts. The seven teams played a round-robin tournament, and the top two finishers were promoted to Group III for 1999.
The tournament marked the debuts of Honduras, the Netherlands Antilles, Saint Lucia, and the U.S.Virgin Islands in Davis Cup competition.
References
1998 Davis Cup Americas Zone Group IV Wikipedia(Text) CC BY-SA