Inter-Institutional Committee, the National Office for Irrigation and Drainage, and the National Secretary for Rural Development contributed to the mosaic of institutions in charge of water resources management for irrigation at the national level. In 1998, the government approved a Resolution establishing the Water Intendancy as the authority for granting water user rights. In 1999, two major concessions for water and sanitation were granted to the private sector in La Paz and Cochabamba. The increase of water tariffs and the consequent limitation of access to water were followed with social upraising in 2000. After what is known as the "Water War," water user associations, national and municipal government, NGOs and international research organizations engaged on intense negotiations aimed at redefining public water policies. This process is known by the Project for Water Rights (Proyecto Derechos de Agua – PDA). Irrigation organizations worked with PDA in creating a national irrigation strategy combining both traditional irrigation practices with technical and scientific knowledge. This participatory process informed the 2004 Irrigation Law No.2878 among others. Evo Morales administration is currently reforming the water institutional framework attributing competences to the newly created Environment and Water Resources Ministry as well as to municipalities and departments accordingly to the Decentralization Law No. 1654, and water users associations. The National Irrigation Plan has included as a challenge the still overlapping responsibilities of different institutions at the national and local level. (See institutional framework below) Legal and institutional framework Legal framework The 2004 Irrigation Law No. 2878 aims at managing irrigation water resources through a decentralized institutional framework as well as securing water user rights through registration. The Irrigation Law 2878 also transfers operation and maintenance of irrigation infrastructure to local farmers and establish participatory mechanisms to promote investment on irrigation systems. The previous law dated from 1906 and was considered obsolete. through The Irrigation Law specifically prohibits the transferring of water rights, hence the creation of water markets, and gives priority to collective users rights over individual users. Users are granted water rights through registries or authorizations. Registries are granted to the indigenous and local families or communities and are aimed at securing water access for domestic or traditional agriculture use respectively. Authorizations are granted to other farmer organizations for agricultural or agro-forestry use for a maximum of 40 years. The Irrigation Law recognizes the Water Ministry, previous Ministry for Agriculture and Campesino Issues, as the national water