action costs pursuant to this section shall not be deemed to preclude the assessment of additional civil or criminal penalties for violations of any other provision of this Chapter or any other law. (4) At the request of the Director, and with the concurrence of the Secretary of the Department in which the Coast Guard is operating, the Commandant of the Coast Guard shall— (A) render, on a non-reimbursable basis, such assistance that the Director may require, necessary to assess the cost of response action that should have been taken in the case of an environmental emergency caused by the operator’s ship-based activities, including any determination concerning the underlying response activity