Twenty-four teams participated in the World Group I, in a series decided on a home and away basis. The seedings are based on the nations ranking of 9 March.[2]
These twenty-four teams were:
12 losing teams from the qualifying round
12 winning teams from World Group I play-offs
The eight highest-ranked (as at 20 September 2021) winners of the World Group I ties automatically progressed to the 2022 qualifiers. The four lowest-ranked winners took part in an additional knock-out tie in November 2021, with the two winners progressing to the 2022 qualifiers and two losers contesting the 2022 World Group I play-offs. The losing nations from the World Group I ties will compete in the World Group I play-offs in 2022.[3]