Question juridique clé
Whether the old municipal contribution rules or the KER govern a contribution plan for an infrastructure built before the KER entered into force.
Solution extraite
The old law remains applicable because the decisive event is the construction of the infrastructure, not the later date of plan publication.
Motifs extraits
The transitional rules do not cover every situation, but for contribution systems the triggering fact is generally the creation of the facility. Applying the publication date as decisive would give undue weight to a merely formal criterion and conflict with legal certainty and the prior procedural model, under which the plan was drawn up only after completion and accounting.