2.         An ethnographic study; 3.         A protected area resource pro le; 4.         Land use plans done in coordination with the respective Regional Development Councils; and 5.         Such other background studies as will be su cient bases for selection. The DENR shall: 1. Notify the public of proposed action through publication in a newspaper of general circulation, and such other means as the System deems necessary in the area or areas in the vicinity of the affected land thirty (30) days prior to the public hearing; i.          Conduct public hearings at the locations nearest to the area affected; ii.         At least thirty (30) days prior to the date of hearing, advise all Local Government Units (LGUs) in the affected areas, national agencies concerned, people’s organizations and non-government organizations and invite such o cials to submit their views on the proposed action at the hearing not later than thirty (30) days following the date of hearing; and iii.        Give due consideration to the recommendations at the public hearing; and provide su cient explanation for his recommendations contrary to the general sentiments expressed in the public hearing; 2. Upon receipt of the recommendations of the DENR, the President shall issue a presidential proclamation designating the recommended areas as protected areas and providing for measures for their protection until such time when Congress shall have enacted a law nally declaring such recommended areas as part of the integrated protected area systems; and 3. Thereafter, the President shall send to the Senate and the House of Representatives his recommendations with respect to the designations as protected areas or reclassi cation of each area on which review has been completed, together with maps and legal description of boundaries. The President, in his recommendation, may propose the alteration of existing boundaries of any or all proclaimed protected areas, addition of any contiguous area of public land of predominant physical and biological value. Nothing contained herein shall limit the President to propose, as part of his recommendation to Congress, additional areas which have not been designated, proclaimed or set aside by law, presidential decree, proclamation or executive orders as protected area/s. /

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