It has established the International Center for Combating Desertification in Sede Boqer in the Negev desert. Thus far, five Israeli sites have been included on the World Heritage List. Enforcement of the CITES provisions is highly efficient in Israel due to its comprehensive nature protection legislation. Two Israeli sites have been designated as Wetlands of International Importance on the Ramsar List: the Hula Nature Reserve and the En Afeq Reserve.