merits of the petition and shall state the circumstances surrounding the abandonment or neglect of the child. The petition shall be supported by the following documents: (1) Social Case Study Report made by the DSWD, local government unit, licensed or accredited child-caring or child-placing agency or institution charged with the custody of the child; (2) Proof that efforts were made to locate the parent(s) or any known relatives of the child. The following shall be considered sufficient: (a) Written certification from a local or national radio or television station that the case was aired on three (3) different occasions; (b) Publication in one (1) newspaper of general circulation; (c) Police report or barangay certification from the locality where the child was found or a certified copy of a tracing report issued by the Philippine National Red Cross (PNRC), National Headquarters (NHQ), Social Service Division, which states that despite due diligence, the child's parents could not be found; and (d) Returned registered mail to the last known address of the parent(s) or known relatives, if any. (3) Birth certificate, if available; and (4) Recent photograph of the child and photograph of the child upon abandonment or admission to the agency or institution. Section 4. Procedure for the Filing of the Petition. – The petition shall be filed in the regional office of the DSWD where the child was found or abandoned. The Regional Director shall examine the petition and its supporting documents, if sufficient in form and substance and shall authorize the posting of the notice of the petition conspicuous place for five (5) consecutive days in the locality where the child was found. The Regional Director shall act on the same and shall render a recommendation not later than five (5) working days after the completion of its posting. He/she shall transmit a copy of his/her recommendation and records to the Office of the Secretary within forty-eight (48) hours from the date of the recommendation. Section 5. Declaration of Availability for Adoption. – Upon finding merit in the petition, the Secretary shall issue a certification declaring the child legally available for adoption within seven (7) working days from receipt of the recommendation. Said certification, by itself shall be the sole basis for the immediate issuance by the local civil registrar of a foundling certificate. Within seven (7) working days, the local civil registrar shall transmit the founding certificate to the National Statistic Office (NSO).