Any order payable to the Commissioner of Administrative Services for support of any beneficiary of public assistance shall, on filing by the Commissioner of Social Services with the court making such order, or with the assistant clerk of the Family Support Magistrate Division where such order was entered, of a notice of discontinuance of such assistance and on notice to the payor by registered or certified mail, a copy of which notice shall be sent to the Commissioner of Administrative Services, be payable directly to such beneficiary, beginning with the effective date of discontinuance, except that the Commissioner of Social Services may elect to continue to collect such support payments on behalf of the beneficiaries of the temporary family assistance program for three months after the date of discontinuance as provided in federal law and regulations.