The Sustainable Groundwater Management Act (SGMA) was passed in 2014 to help protect the groundwater resource over the long term. SGMA enables local agencies to form and manage groundwater. SGMA required local agencies to form Groundwater Sustainability Agencies (GSAs) covering the groundwater Subbasins in which they are located. GSAs are required to develop and implement a Groundwater Sustainability Plan (GSP), plans to achieve sustainability and prevent undesirable results.