Women's Charter (Chapter 353): Primary legislation governing marriage, divorce, and child custody in Singapore. Sections 122-132 specifically deal with custody, care and control of children, while Section 139 emphasizes the welfare of children as paramount consideration.

Guardianship of Infants Act (Chapter 122): Key legislation providing framework for guardianship and custody matters, emphasizing the best interests of the child principle in custody decisions.

Children and Young Persons Act (Chapter 38): Legislation focused on the protection and welfare of children, providing additional safeguards in custody arrangements.

Best Interest of the Child Doctrine: Fundamental legal principle requiring all custody decisions to prioritize the child's physical, emotional, and psychological wellbeing above all other considerations.

Care and Control Provisions: Legal requirements regarding day-to-day decision making and living arrangements for the child, specifying primary caregiver responsibilities.

Access Arrangements: Legal framework for establishing visitation schedules, holiday arrangements, and special occasions access between the child and non-custodial parent.

Major Decisions Framework: Legal guidelines for handling significant decisions regarding the child's education, healthcare, and religious upbringing, requiring consultation between parents.

Maintenance Obligations: Legal requirements regarding financial responsibilities, including education expenses and healthcare costs for the child's upbringing.

Family Justice Courts Act: Legislation defining the jurisdiction and enforcement powers of Family Justice Courts in custody matters and separation agreements.