The California Climate Action Registry, which was initially established in 2000 and began operation in Fall 2002, is a voluntary registry for recording annual greenhouse gas (GHG) emissions. The purpose of the Registry is to assist California businesses and organizations in their efforts to inventory and document emissions in order to establish a baseline and to document early actions to increase energy efficiency and decrease GHG emissions. The State of California has committed to use its “best efforts” to ensure that entities that establish GHG emissions baselines and register their emissions will receive “appropriate consideration under any future international, federal, or state regulatory scheme relating to greenhouse gas emissions”. Reporting of GHG emissions involves documentation of both “direct” emissions from sources that are under the entity’s control and “indirect” emissions controlled by others. Electricity generated by an off-site power source is considered to be an indirect GHG emission and is required to be included in the entity’s report.