court hearing such petition. The Department of Social Welfare shall intervene on behalf of the child if it finds, after such case study, that the petition should be denied. Article 34. Procedure. - The proceedings for adoption shall be governed by the Rules of Court in so far as they are not in conflict with this Chapter. Article 35. Trial Custody. - No petition for adoption shall be finally granted unless and until the adopting parents are given by the court a supervised trial custody period of at least six months to assess their adjustment and emotional readiness for the legal union. During the period of trial custody parental authority shall be vested in the adopting parents. The court may, upon its own motion or on motion of the petitioner, reduce or dispense with the trial period if it finds that it is to the best interest of the child. In such case, the court shall state its reasons for reducing said period. Article 36. Decree of Adoption. - If, after considering the report of the Department of Social Welfare or duly licensed child placement agency and the evidence submitted before it, the court is satisfied that the petitioner is qualified to maintain, care for, and educate the child, that the trial custody period has been completed, and that the best interests of the child will be promoted by the adoption, a decree of adoption shall be entered, which shall be effective as of the date the original petition was filed. The decree shall state the name by which the child is thenceforth to be known. Article 37. Civil Registry Record. - The adoption shall be recorded in the local civil register and shall be annotated on the record of birth, and the same shall entitle the adopted person to the issuance of an amended certificate of birth. Article 38. Confidential Nature of Proceedings and Records. - All hearings in adoption cases shall be confidential and shall not be open to the public. All records, books and papers relating to the adoption cases in the files of the court, of the Department of Social Welfare, and of any other agency or institution participating in the adoption proceedings, shall be kept strictly confidential. Subject to the provisions of Article 7, in any case in which information from such records, books and papers is needed, the person or agency requesting the release of the information may file a petition to the court which entered the decree of adoption for its release. If the court finds that the disclosure of the information is necessary for purposes connected with or arising out of the adoption and will be for the best interests of the child, the court may permit the necessary information to be released, restricting the purposes for which it may be used. Article 39. Effects of Adoption. - The adoption shall: 1. Give to the adopted person the same rights and duties as if he were a legitimate child of the adopter: Provided, That an adopted child cannot acquire Philippine citizenship by virtue of such adoption; lawphi1.net 2. Dissolve the authority vested in the natural parent or parents, except where the adopter is the spouse of the surviving natural parent; 3. Entitle the adopted person to use the adopter's surname; and 4. Make the adopted person a legal heir of the adopter: Provided, That if the adopter is survived by legitimate parents or ascendants and by an adopted person, the latter shall