The Enforcement Rules of the Spatial Planning Act Article 8

The central, municipality or county (city) competent authorities establishing or revising spatial plans and finding it necessary to act according to Article 18 of the Act to send personnel to enter public or private land or buildings to perform investigations or surveys shall abide by the following regulations:1. Notify the owner, occupant, manager or user in writing seven days in advance2. If a notice described in the preceding subparagraph cannot be delivered, it may be left at the local village office and a public announcement shall also be put up at the offices of the competent authority and the village.The provisions in the preceding paragraph shall apply mutatis mutandis when a competent authority acts according to Article 2 of these rules and delegates an agency or organization to be responsible for spatial plan establishment or revision.