"ADC" refers to the use of specified materials as daily cover at landfills in place of soil. Green material ADC is one of several material types currently permitted for landfill cover. In keeping track of the amount of waste diverted from landfills, local governments are allowed to count certain types of ADC as diversion.
Basic information about ADC is found on the ADC page for local governments (most of the content may also be of interest to the general public). A 2009 white paper on ADC (PDF, 959 KB) is also available.
Organics Summit (2007). An “Organics Summit” was held on October 10, 2007, for stakeholders and California Integrated Waste Management Board (CIWMB, now known as CalRecycle) staff and board members. Its purpose was to discuss and frame options for how to best focus efforts to reduce the amount of organics in the waste stream by 50 percent by 2020 (as specificed in 2009 Strategic Directive 6.1). CalRecycle staff presented the Organics Policy Roadmap and Schedule as discussion item 15 at the December 11, 2007, CalRecycle meeting.
ADC Policy Working Group (2008). In March 2008, CalRecycle directed staff to form an ADC Policy Working Group to develop options for reducing green material ADC. In addition, CalRecycle directed staff to implement the proposed Organics Policy Roadmap and Schedule, including development of a policy item on ADC for the March 2008, CIWMB/CalRecycle meeting.