13 h. Take necessary measures, including the establishment of specialized mechanisms, to trace and reunify families separated during displacement and otherwise facilitate the re-establishment of family ties; i. Take necessary measures to protect individual, collective and cultural property left behind by displaced persons as well as in areas where internally displaced persons are located, either within the jurisdiction of the State Parties, or in areas under their effective control; j. Take necessary measures to safeguard against environmental degradation in areas where internally displaced persons are located, either within the jurisdiction of the State Parties, or in areas under their effective control; k. States Parties shall consult internally displaced persons and allow them to participate in decisions relating to their protection and assistance; I. Take necessary measures to ensure that internally displaced persons who are citizens in their country of nationality can enjoy their civic and political rights, particularly public participation, the right to vote and to be elected to public office; and m. Put in place measures for monitoring and evaluating the effectiveness and impact of the humanitarian assistance delivered to internally displaced persons in accordance with relevant practice, including the Sphere Standards. 3. States Parties shall discharge these obligations, where appropriate, with assistance from international organizations and humanitarian agencies, civil society organizations, and other relevant actors. .·,.. , . Article 10 Displacement induced by Projects 1. States Parties, as much as possible, shall prevent displacement caused by projects carried out by public or private actors; 2. States Parties shall ensure that the stakeholders concerned will explore feasible alternatives, with full information and consultation of persons likely to be displaced by projects; 3. States parties shall carry out a socio-economic and environmental impact assessment of a proposed development project prior to undertaking such a project. - i ."