7. Sampling points at which exceedances of a relevant limit value or target value specified in Section 1 of Annex I were recorded within the previous 3 years shall not be relocated, unless a relocation is necessary due to special circumstances, including spatial development. Relocation of such sampling points shall be supported by modelling applications or indicative measurements and shall, wherever possible, ensure continuity of measurements and be done within their area of spatial representativeness. A detailed justification of any relocation of such sampling points shall be fully documented in accordance with the requirements set out in Point D of Annex IV.