(a) It shall be the duty of the department to ensure that every applicant for or recipient of aid to families with dependent children be informed not less frequently than annually as to the provisions of eligibility and his responsibility for reporting all facts material to a correct determination of eligibility and amount of grant. After such information has been provided, the department shall require the recipient and caseworker to execute a formal acknowledgment, on a form prescribed for such purpose, describing what steps were taken to explain the eligibility and reporting requirements to the recipient and that such explanation was understood by the recipient.

(b) Each applicant for or recipient or payee of such aid to families with dependent children shall be responsible to report accurately and completely those facts required of him, pursuant to the explanation provided by the department.

(c) The failure of an applicant or recipient to report facts which may affect eligibility and grant determination within ten days of the date upon which the applicant or recipient became aware of such facts shall constitute a wilful withholding of such information and permit the department to recover any overpayment occasioned or caused by the wilful withholding. Such facts may include, but are not limited to, composition of household, address or any other factor which may affect eligibility, or failure or refusal to obtain unconditionally available income. If appropriate, recoupment proceedings may be initiated.

(d) When the department receives information that would result in a change in grant amount or eligibility, the department shall take action to adjust the grant or redetermine eligibility, consistent with notice requirements, within ten days of receipt of such information.