This document compiles information about the environment in the Southern California Planning Area, including human and natural resources, that is subject to potential impacts from oil and gas activities, including decommissioning of existing oil and gas infrastructure. BOEM will use this document to inform future outreach with other federal agencies and tribal governments. It will also inform the Affected Environment section in future Environmental Assessments or Environmental Impact Statements BOEM prepares under the National Environmental Policy Act (NEPA).