MO HB587

Defines "relocation" as a change in a child's principal residence of 50 miles or more for 90 days or longer, excluding temporary absences.

Requires written notice by certified mail at least 60 days in advance to any party with custody or visitation rights, including the new address, phone number, move date, reason for relocation, and proposed revised custody/visitation schedule.

Permits relocation 60 days after notice unless a parent files a motion within 30 days to prevent it, with the relocating party bearing the burden of proving the move is made in good faith and in the child's best interest.

Imposes consequences for failure to provide notice, including consideration as a factor in custody modification, ordering return of the child, and requiring the relocating party to pay reasonable expenses and attorney fees.

Requires all court orders establishing or modifying custody or visitation to include mandatory language informing parties of their obligation to provide relocation notice and warning of potential contempt charges and fee assessments for non-compliance.