Oil and Chemical Incident Annex: To the Response and Recovery Federal Interagency Operational Plans [open pdf - 2MB]
From the Purpose: "The Oil and Chemical Incident Annex (OCIA) focuses on consequence management. It supports the Response and Recovery Federal Interagency Operational Plans (FIOPs) and provides supplemental information specific to oil and chemical incidents. It describes the interagency coordination process and organizational constructs used by federal departments and agencies (D/A) for responding to and recovering from oil or chemical releases. This annex describes how federal partners will respond to oil/chemical incidents in support of SLTT [state, local, tribal, and territorial] governments, to save lives, protect property, and preserve the environment."
Federal Emergency Management Agency: https://www.fema.gov/