The Swiss Football Association (ASF/SFV) had 28 member clubs at this time and these were divided into two divisions of 14 teams each.
The teams played a double round-robin to decide their table positions.
There was to be a reform of the Swiss football league system at the end of this season.
Lugano and the two newly promoted teams, Biel-Bienne and La Chaux-de-Fonds, suffered relegation.
Because two teams ended the NLB level on points, a promotion play-off was required.