(a) In the event of an error on a MILC application, a failure to comply with any term, requirement, or condition for payment arising under the MILC application, or this subpart, all improper payments shall be refunded to CCC together with interest from the date payment was received through the date the refund is received by CCC.

(b) All producers signing a dairy operation's application for payment as having an interest in the operation shall be jointly and severally liable for any refund, including related charges, that is determined to be due for any reason under the terms and conditions of the contract application and addendum or this part for such operation.