40 CFR 13.5: Claims involving criminal activities or misconduct.

(a) The Administrator will refer cases of suspected criminal activity or misconduct to the EPA Office of Inspector General. That office has the responsibility for investigating or referring the matter, where appropriate, to the Department of Justice (DOJ), and/or returning it to the Administrator for further actions. Examples of activities which should be referred are matters involving fraud, anti-trust violations, embezzlement, theft, false claims or misuse of Government money or property.

(b) The Administrator will not administratively compromise, terminate, suspend or otherwise dispose of debts involving criminal activity or misconduct without the approval of DOJ.