The Liga Nacional Juvenil is the second level of the Spanish football league system for youth players 18 years old and under. It is administered by the RFEF and regional football federations. Currently the Liga Nacional has seventeen regional groups plus four groups from the autonomous region of the Canarias. Each Liga Nacional group has 16 to 18 teams with the winner (except for the 2nd or B teams) of each group promoted to the División de Honor and the last three placed teams are relegated to their respective regional group. The runners-up of the stronger groups are also promoted.
n.b.: There is maximum of two teams each from Ceuta and Melilla in their respective Liga Nacional group. If both or either group has reached the maximum, the Ceuta and/or Melilla winner must playoff against the Andalucía runner(s)-up for promotion.