A referendum was held on October 1st, 1978 at Andenne, a municipality in the French-speaking part of Belgium, on the settlement of a nuclear plant. A referendum on the settlement of an ecologically noxiousindustry was held at Tessenderlo, a municipality in the Dutch-speaking part of Belgium, on March 25th, 1979. These referenda are unique in their kind in Belgium. They show a very large similarity bath in theirset-up and their results. The turn-out can be considered satisfying high, especially since compulsory voting could not be imposed. The votes cast were mainly nays.