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 nations finishing last in their pools took part in relegation play-offs, with the losing nation was relegated to Group II for 2017.
The eleven teams were divided into two pools, one of five teams and one of six teams. The two nations placing first in their pools took part in play-offs to determine the nation promoted to Group I in 2017.