An Act relative to the uniform child custody jurisdiction and enforcement act

This bill replaces Massachusetts' existing Chapter 209B with the "Massachusetts Uniform Child Custody Jurisdiction and Enforcement Act." It establishes clear rules for determining which state's court has authority over child custody cases, primarily based on the child's "home state" (where they lived with a parent for at least six months). The law ensures custody orders from other states (or foreign countries meeting specific standards) are recognized and enforced in Massachusetts, directly affecting families moving across state lines and courts handling custody disputes. It also includes specific provisions for cases involving Indian tribes under federal law.