In the Philippines, the legal landscape for adoption underwent a significant transformation with the enactment of Republic Act No. 11642, also known as the "Domestic Administrative Adoption and Alternative Child Care Act." This law effectively streamlined the process by shifting it from a purely judicial proceeding to an administrative one, aiming to provide a faster and more child-centric approach.

When a child is adopted by a relative within the fourth degree of consanguinity or affinity, the process is specifically categorized as Relative Adoption.

I. Who May Adopt? (The Adopter)

To qualify as an adopter in a relative adoption case, the petitioner must meet the following criteria under Philippine law:

Age: Must be of legal age (at least 18 years old).
Age Gap: Generally, the adopter must be at least 15 years older than the adoptee. However, this 15-year gap is waived when the adopter is the biological parent of the child or the spouse of the child's parent.
Legal Capacity: Must have full civil capacity and legal rights.
Character: Must be of good moral character and have not been convicted of any crime involving moral turpitude.
Capacity to Support: Must be in a position to provide for the proper care and support of the child.
Relative Status: Must be a relative within the fourth (4th) degree of consanguinity or affinity (e.g., grandparents, siblings, aunts, uncles, or first cousins).

II. Who May Be Adopted? (The Adoptee)

A child may be the subject of relative adoption if they are:

A person below 18 years of age who has been voluntarily or involuntarily committed to the Department of Social Welfare and Development (DSWD).
A legitimate child of one spouse by the other spouse.
A relative by blood or affinity within the fourth degree.

III. Required Consents

Under RA 11642, the written consent of the following is indispensable:

The Adoptee: If the child is ten (10) years of age or older.
Biological Parents: The legal parents of the child (unless parental authority has been legally terminated).
Spouse of the Adopter: If the adopter is married, the spouse must provide joint consent (unless they are legally separated or the child is the biological child of one spouse).
Legitimate/Adopted Children: Any children of the adopter who are ten (10) years of age or older.

IV. Documentary Requirements

The administrative process requires the submission of a Petition for Adoption to the National Authority for Child Care (NACC). Essential documents include:

Birth Certificates: Of both the petitioner(s) and the child (PSA-issued).
Marriage Contract: Or Divorce/Annulment Decree, if applicable.
NBI/Police Clearances: To prove good moral character and lack of criminal record.
Medical Certifications: Confirming physical and mental fitness of the adopters.
Home Study Report: Conducted by a licensed social worker to evaluate the living conditions and relationship dynamics.
Child Study Report: A detailed profile of the child’s background and needs.
Photographs: Recent photos of the child and the petitioners.

V. The Administrative Process

With the passage of RA 11642, the Regional Alternative Child Care Services (RACCS) and the NACC handle the proceedings.

Filing of Petition: The petition is filed with the RACCS where the child resides.
Matching (Waived for Relatives): In regular adoptions, "matching" is required. However, in relative adoption, the matching process is usually waived because the bond already exists.
Supervised Trial Custody (STC): A period (usually 6 months) where a social worker monitors the placement. For relative adoptions, the NACC has the discretion to reduce or waive the STC period if it is in the best interest of the child.
Order of Adoption: Once all requirements are met and the NACC finds the adoption beneficial to the child, it issues an Order of Adoption.
Certificate of Finality: Once the order becomes final, the NACC issues a certificate which is then used to secure a new Birth Certificate from the Philippine Statistics Authority (PSA).

VI. Legal Effects of Relative Adoption

Severance of Ties: All legal ties between the biological parents and the adoptee are severed (except when the biological parent is the spouse of the adopter).
Parental Authority: Full parental authority is vested in the adopters.
Legitimacy: The adoptee is considered a legitimate child of the adopter for all intents and purposes.
Succession: The adoptee gains the same inheritance rights as a legitimate child of the adopter.
Name Change: The child’s surname is typically changed to that of the adopter.

Summary Table: Proximity of Relationship (4th Degree)

Degree	Relation Examples
1st Degree	Parents, Children
2nd Degree	Grandparents, Siblings, Grandchildren
3rd Degree	Uncles, Aunts, Nephews, Nieces, Great-grandparents
4th Degree	First Cousins, Grand-nephews/nieces, Great-uncles/aunts