40 CFR 13.10: Aggressive collection actions; documentation.

(a) EPA takes actions and effective follow-up on a timely basis to collect all claims of the United States for money and property arising out of EPA's activities. EPA cooperates with other Federal agencies in their debt collection activities.

(b) All administrative collection actions are documented in the claim file, and the bases for any compromise, termination or suspension of collection actions is set out in detail. This documentation, including the Claims Collection Litigation Report required § 13.33, is retained in the appropriate debt file.