The winners of each of the four regional groups progressed to the 2013–14 B PFG and up to four teams from each group were relegated to regional amateur championships.
In return, Dorostol Silistra canceled their participation during the East B PFG championship and dissolved as club.
Dobrudzha Dobrich and Nesebar finished at the bottom two places and relegated to the North-East and South-East division.
Additionally Chernomorets Pomorie canceled their East B PFG participation after the end of the last season and dissolved as club.
From West B PFG relegated also four teams - Chavdar Byala Slatina canceled its participation during the season and dissolved as club, Slivnishki Geroi will play in the South-West V AFG, Malesh Mikrevo declined its further participation in the third division and Akademik Sofia have not received a professional licence, but due financial difficulties they canceled its participation in the South-West V AFG.