Leagues A and B consist of teams with a license from the Voetbalfederatie Vlaanderen (VFV, the Dutch speaking wing of the Belgian FA), while league C contains teams with a license from the Association des Clubs Francophones de Football (ACFF, the French speaking wing of the RBFA).
The team finishing in second place in the Second Amateur Division C will take part in the promotion playoff first round together with three period winners.
These 4 teams will play the first round of a promotion-playoff, with the winner qualifying for the Promotion play-offs Final.
The two winners of the Promotion play-offs on the VFV side (Aalst and Brakel) and the winning team from the ACFF Promotion play-offs (RFC Liège) will play a final tournament together with the team that finished in 13th place in the 2016–17 Belgian First Amateur Division, Hasselt.
Before the match, it was not known whether an extra VFV team would be relegated, which depended on the result of the promotion play-offs.
On 28 May 2017, RFC Liège lost the final match of the promotion play-off, resulting in Bornem being saved and avoiding relegation to the Belgian Third Amateur Division.