With respect to any matter assigned to the Environment and Natural Resources Division in which the Environmental Protection Agency is a party, the Assistant Attorney General in charge of the Environment and Natural Resources Division, and such members of his staff as he may specifically designate in writing, are authorized to exercise the functions and responsibilities undertaken by the Attorney General in the Memorandum of Understanding between the Department of Justice and the Environmental Protection Agency (42 FR 48942), except that subpart Y of this part shall continue to govern as authority to compromise and close civil claims in such matters.
28 C.F.R. §0.65a