 These initiatives lead to the 20 December 2002, petition to classify the thermals as a "Imóvel de Interesse Municipal" ("Property of Municipal Interest"), then reinforced on 9 March 2004 by moves by the DRPorto to open a process to classify the Thermal Park of Peso, later supported by the Vice-President of the IPPAR (12 October).In June 2005, the PITER program was prorogued.The attempts to classify the property continued on 31 May 2012, with a proposal by the DRCNorte to classify the park as a "Monumento de Interesse Público" ("Monument of Public Interest") and fix it within its own Special Protection Zone (ZPE), which was accepted by the National Culture Council of SPAA.