The participating teams are divided into the four leagues on the basis of their positions in the 2026/27 UEFA Nations League access list (see Annex C):
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The 16 teams ranked 1st to 16th enter League A.
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The 16 teams ranked 17th to 32nd enter League B.
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The 16 teams ranked 33rd to 48th enter League C.
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The remaining teams enter League D.
A draw is held to determine the composition of the groups within each league. The teams in each league are seeded according to the 2026/27 UEFA Nations League access list. Additional draw conditions may be applied, subject to approval by the UEFA Executive Committee.