Due to the remodeling of the RFEF leagues, as of this season the promotion play-off is divided into two stages: regional and national.
Four teams from each group participate in the regional stage, which were classified between places second and fifth of the regular season.
The winners of the two series will play a match to determine the team that will qualify for the national stage.
[2] Playoffs were played at Estadio Verónica Boquete de San Lázaro, Santiago de Compostela (Semi–finals) and Estadio Anxo Carro, Lugo (Final) Group Champion: Polvorín Play-off winner: Ourense CF Playoffs were played at Estadio Ganzábal, La Felguera (Langreo) Group Champion: Real Oviedo Vetusta Play-off winner: Lealtad Playoffs were played at Estadio Santa Ana, Tanos (Torrelavega) Group Champion: Gimnástica de Torrelavega Play-off winner: Escobedo Playoffs were played at Lezama Facilities, Lezama; Estadio de Lasesarre, Barakaldo (Semi–finals) and Zubieta Facilities, San Sebastián (Final) Group Champion: Deportivo Alavés B Play-off winner: Beasain Playoffs were played at Estadi Municipal de Can Roses, Rubí Group Champion: Manresa Play-off winner: Olot Playoffs were played at Estadio Guillermo Olagüe, Gandia Group Champion: Valencia Mestalla Play-off winner: Atlético Saguntino Playoffs were played at Polideportivo Dehesa de Navalcarbón, Las Rozas Group Champion: Atlético Madrid B Play-off winner: Alcorcón B Playoffs were played at Estadio La Arboleda, Almazán Group Champion: Guijuelo Play-off winner: Atlético Tordesillas Playoffs were played at Estadio Francisco Muñoz Pérez, Estepona Group Champion: Juventud Torremolinos Play-off winner: Almería B Playoffs were played at Estadio Francisco Muñoz Pérez, Estepona Group Champion: Recreativo de Huelva Play-off winner: Utrera Playoffs were played at Estadi Son Bibiloni, Palma de Mallorca Group Champion: Mallorca B Play-off winner: Manacor Playoffs were played at Anexo Estadio Gran Canaria, Las Palmas Group Champion: Atlético Paso Play-off winner: Tenerife B Playoffs were played at Estadio Francisco Artés Carrasco, Lorca Group Champion: Yeclano Play-off winner: Cartagena B Playoffs were played at Estadio Francisco de la Hera, Almendralejo Group Champion: Diocesano Play-off winner: Llerenense Playoffs were played at Estadio de San Francisco, Tafalla Group Champion: Cirbonero Play-off winner: Txantrea Playoffs were played at Estadio El Mazo, Haro Group Champion: Arnedo Play-off winner: Alfaro Playoffs were played at Estadio Papa Luna, Illueca Group Champion: Deportivo Aragón Play-off winner: Utebo Playoffs were played at Estadio Manuel Delgado Meco, Alcázar de San Juan (Semi–finals) and Estadio Municipal Paco Gálvez, Tomelloso (Final) Group Champion: Guadalajara Play-off winner: Quintanar del Rey The eighteen qualifying teams will be drawn into nine single-leg neutral site matches to determine the final promotion spots.
All matches will be played in Las Rozas, 20 km northwest of Madrid, at the main field of the La Ciudad del Fútbol and at the nearby Campo Municipal Dehesa de Navalcarbón.