In Division A, champions Ingelmunster and second placed Wetteren won the three periods, allowing the next three teams in the league to take part: Pepingen, Ronse and Dikkelvenne.
In Division D, the champions Durbuy had won two periods, the other went to Tilleur who were joined in the play-offs by the teams finishing 3rd to 5th, Verlaine, Richelle and Mormont.
Mormont, Rebecq, Richelle and Verlaine moved on to Round 2 while Albert Quevy-Mons, Francs Borains, Tilleur and Tournai were eliminated.
Rebecq was promoted to the 2017–18 Belgian Second Amateur Division, while Verlaine was first in line to fill up any extra vacant spot in case the amount of ACFF teams relegating in leagues above would have increased.
Before the match, it was not known whether an extra VFV team would be relegated, which depended on the result of the Second Amateur Division promotion play-offs.
On 28 May 2017, RFC Liège lost the final match of the promotion play-off, resulting in Diest being also saved and avoiding relegation to the Belgian Provincial Leagues.