Establishes presumption of joint legal and physical custody in child custody matters.

This New Jersey bill establishes a default presumption that joint legal and physical custody - where children spend roughly equal time with both parents and parents share major decisions about health, education, and welfare - is in a child's best interest. Courts must assume this arrangement unless a parent provides clear, convincing evidence that it would harm the child, requiring documented findings if the presumption is rebutted. The bill directly affects all parents involved in child custody cases and judges making custody rulings in New Jersey. It modifies existing law to prioritize shared parenting as the standard, while still allowing courts to order alternative arrangements like sole custody if justified by the child's specific needs.