Modernisation of irrigation schemes within the central government is the responsibility of the Directorate General for Water. In Israel, recycled water for irrigation and increased water-use efficiency in the agricultural sector are two examples. One-third of the water used in the agricultural sector each year is from treated domestic (grey and black water) waste. Reductions in quotas are therefore made by the Water Authority (originally called the Water Commission). The agricultural sector adapted rapidly to these restrictions through necessity thanks to the production and promotion of domestic recycled water, as well as through innovations in irrigation with semi-saline water, highly advanced crop irrigation practices and increasing crop tolerance to low water regimes.