Policy institutions The Ministry of Water and Housing (MWH) is responsible for setting water and sanitation policies. It is also in charge of ensuring that all housing developments meet required standards for sanitation. The Ministry of Health develops and implements health policies and legislation to promote appropriate sanitation practices; establishes and monitors health indicators for sanitation, enforces public health laws, provides public education on sanitation and hygiene. The National Environment and Planning Agency (NEPA) determines and monitors environmental standards for water supply and sanitation. Local Authorities have only a limited role in the sector.