MO HB402

Establishes family intervention orders under sections 455.100 to 455.155 allowing adult family members or children age 12+ to petition courts for orders against family members with chemical substance abuse.

Requires courts to hold hearings within 15 days and issue orders valid for 180 days to one year if petitioner proves chemical substance abuse by preponderance of evidence; orders can be renewed.

Family intervention orders must require respondent to undergo prevention/intervention evaluation and, if diagnosed as chemical substance abuser, may require substance abuse treatment from clinical providers, medication-assisted treatment, or recovery support organizations.

Modifies child abuse/neglect reporting requirements and family law proceedings to include inquiries about chemical substance abuse and inform reporters about family intervention order availability.

Failure to comply with family intervention order can result in contempt proceedings and may affect custody determinations, with non-compliant family members deemed least preferable parent in custody disputes.