(a)(1) An agreement to support the child by payment of a periodic sum until the child attains the age of eighteen years or as otherwise provided in this subsection, together with provisions for reimbursement for past-due support based upon ability to pay in accordance with the provisions of § 17a-90 or 17b-81, subsection (b) of § 17b-179 or § 17b-223, 46b-129 or 46b-130, and reasonable expense of prosecution of the petition, when filed with and approved by a judge of the Superior Court, or in IV-D support cases and matters brought under sections 46b-301 to 46b-425, inclusive, a family support magistrate at any time, shall have the same force and effect, retroactively or prospectively in accordance with the terms of the agreement, as an order of support entered by the court, and shall be enforceable and subject to modification in the same manner as is provided by law for orders of the court in such cases. If such child is unmarried and a full-time high school student, such support shall continue according to the parents’ respective abilities to pay, if such child is in need of support, until such child completes the twelfth grade or attains the age of nineteen, whichever occurs first.

(2) Past-due support in such cases shall be limited to the three years next preceding the date of the filing of such agreements to support.

(3) Payments under such agreement shall be made to the petitioner, except that in IV-D support cases, as defined in subsection (b) of § 46b-231, payments shall be made to the Office of Child Support Services or its designated agency and distributed as required by Title IV-D of the Social Security Act. In IV-D support cases, the IV-D agency or a support enforcement agency under cooperative agreement with the IV-D agency may, upon notice to the obligor and obligee, redirect payments for the support of any child receiving child support enforcement services either to the state of Connecticut or to the present custodial party, as their interests may appear, provided neither the obligor nor the obligee objects in writing within ten business days from the mailing date of such notice. Any such notice shall be sent by first class mail to the most recent address of such obligor and obligee, as recorded in the state case registry pursuant to § 46b-218, and a copy of such notice shall be filed with the court or family support magistrate if both the obligor and obligee fail to object to the redirected payments within ten business days from the mailing date of such notice.

(4) Such written agreements to support shall be sworn to, and shall be binding on the person executing the same whether he is an adult or a minor.

(b) (1) At any time after the signing of any acknowledgment of parentage, upon the application of any interested party, the court or any judge thereof or any family support magistrate in IV-D support cases and in matters brought under sections 46b-301 to 46b-425, inclusive, shall cause a summons, signed by such judge or family support magistrate, by the clerk of the court or by a commissioner of the Superior Court, to be issued, requiring the acknowledged parent to appear in court at a time and place as determined by the clerk but not more than ninety days after the issuance of the summons, to show cause why the court or the family support magistrate assigned to the judicial district in IV-D support cases should not enter judgment for support of the child by payment of a periodic sum until the child attains the age of eighteen years or as otherwise provided in this subsection, together with provision for reimbursement for past-due support based upon ability to pay in accordance with the provisions of § 17a-90 or 17b-81, subsection (b) of § 17b-179 or § 17b-223, 46b-129 or 46b-130, a provision for health coverage of the child as required by § 46b-215, and reasonable expense of the action under this subsection. If such child is unmarried and a full-time high school student such support shall continue according to the parents’ respective abilities to pay, if such child is in need of support, until such child completes the twelfth grade or attains the age of nineteen, whichever occurs first.

(2) Past-due support in such cases shall be limited to the three years next preceding the filing of a petition pursuant to this section. Such court or family support magistrate, in IV-D support cases, may also order the acknowledged parent who is subject to a plan for reimbursement of past-due support and is not incapacitated to participate in work activities which may include, but shall not be limited to, job search, training, work experience and participation in the job training and retraining program established by the Labor Commissioner pursuant to § 31-3t.

(3) Proceedings to obtain such orders of support shall be commenced by the service of such summons on the acknowledged parent. A state marshal or proper officer shall make due return of process to the court not less than twenty-one days before the date assigned for hearing.

(4) The prior judgment as to paternity shall be res judicata as to that issue for all paternity acknowledgments filed with the court on or after March 1, 1981, but before July 1, 1997, and shall not be reconsidered by the court unless the person seeking review of the acknowledgment petitions the superior court for the judicial district having venue for a hearing on the issue of paternity within three years of such judgment. In addition to such review, if the acknowledgment of paternity was filed prior to March 1, 1981, the acknowledgment of paternity may be reviewed by denying the allegation of paternity in response to the initial petition for support, whenever it is filed.

(5) All payments under this subsection shall be made to the petitioner, except that in IV-D support cases, as defined in subsection (b) of § 46b-231, payments shall be made to the state, acting by and through the IV-D agency and distributed as required by Title IV-D of the Social Security Act. In IV-D support cases, the IV-D agency or a support enforcement agency under cooperative agreement with the IV-D agency may, upon notice to the obligor and obligee, redirect payments for the support of any child receiving child support enforcement services either to the state of Connecticut or to the present custodial party, as their interests may appear, provided neither the obligor nor the obligee objects in writing within ten business days from the mailing date of such notice. Any such notice shall be sent by first class mail to the most recent address of such obligor and obligee, as recorded in the state case registry pursuant to § 46b-218, and a copy of such notice shall be filed with the court or family support magistrate if both the obligor and obligee fail to object to the redirected payments within ten business days from the mailing date of such notice.

(c) In IV-D support cases, as defined in subdivision (13) of subsection (b) of § 46b-231, a copy of any support order established pursuant to this section shall be provided to each party and the state case registry within fourteen days after issuance of such order or determination.