Venue: Country Club Las Palmas, Santa Cruz, Bolivia (outdoor clay)
Date: 3–6 February
The eight teams were divided into two pools of four teams. The two pool winners took part in a play-off to determine the nation advancing to the World Group II play-offs. The four nations finishing third and fourth in their pools took part in relegation play-offs, with the two losing nations being relegated to Group II for 2017.
Venue: Centro de Tenis Honda, Bayamón, Puerto Rico (outdoor hard)
Date: 1–6 February
The nine teams were divided into one pool of four teams and one pool of five teams. The top two nations in each pool took part in play-offs, with the two winning nations being promoted to Group I for 2017.