Key legal question
Whether the old municipal perimeter regulation or later GBV rules governed the deferred contributions
Extracted holding
The old municipal regulation applied, because the contributions had been deferred before the GBV entered into force and the transitional rule preserved the former law.
Extracted reasoning
Section 54 GBV kept the prior law for previously deferred contributions; the relevant deferrals dated from 1976/1978, before 1 November 1980.