If the local department discovers during the certification period that the household failed to report a required change, and, as a result the household received benefits for which it was not entitled, the local department shall reduce or terminate the allotment after sending the notice of adverse action. The local department shall establish a claim against the household if the household received benefits to which it was not entitled as specified in Regulation .54 of this chapter. The local department may not establish a claim against a household for not reporting a change not required to be reported.