United States Environmental Protection Agency / office of Permitting / DTSC’s Engineering and Special Project Office / Permitting’s mission / Preliminary Draft Department / office of Communication / office of External Communication / Congress / Financial Responsibility Unit / Financial Assurance Unit / Department of Toxic Substances Control / Assist DTSC Enforcement Division / office of Legal / office of Legal Affairs / Permit Office / Analysis / Emergency Response and Enforcement Division / Permitting Office / office of Planning and Environmental Analysis / office of Environmental Planning and Analysis / /