Related Rule
Philippines
Practice Relating to Rule 131. Treatment of Displaced Persons
Section E. International assistance to displaced persons
In 1990, a number of government departments and NGOs in the Philippines signed a Memorandum of Agreement providing that an NGO medical team would be given access in order to ensure the delivery of health services to IDPs located in evacuation centres or in other areas where health resources were inadequate. 
Philippines, Memorandum of Agreement on the Delivery of Health Services between the Departments of Foreign Affairs, Justice, Local Government, National Defense and Health and the Philippines Alliance of Human Rights Advocates (PAHRA), the Free Legal Assistance Group (FLAG) and the Medical Action Group (MAG), 10 December 1990, § 1, Report on the Practice of the Philippines, 1997, Chapter 5.5.
The Guidelines on Evacuations adopted by the Presidential Human Rights Committee of the Philippines in 1991 provide:
Non-Government health workers (e.g. doctors, nurses, dentists, trained community health workers and volunteer relief workers) shall be permitted to go to evacuation centres to render medical/relief assistance to evacuees. 
Philippines, Presidential Human Rights Committee, Res. No. 91-001 Providing for Guidelines on Evacuations, Manila, 26 March 1991, § 5.