MI HB5823

Establishes the "Age-Appropriate Design Code Act" requiring businesses to design online services, products, and features likely to be accessed by children in accordance with children's best interests regarding privacy, safety, mental and physical health, and wellbeing.

Requires businesses to complete data protection impact assessments for new online services likely accessed by children and for existing high-risk services within 1 year of the act's effective date.

Prohibits businesses from using dark patterns to manipulate children, profiling children without appropriate safeguards, collecting precise geolocation data without consent, and processing children's personal information in high-risk ways without mitigation measures.

Mandates businesses provide privacy-protective default settings, clear age-appropriate privacy information and terms of service, obvious signals when children are being monitored or tracked, and accessible tools for children to exercise privacy rights and report concerns.

Authorizes Michigan Attorney General to enforce violations through civil fines of up to $2,500 per affected child for negligent violations or $7,500 per affected child for intentional violations, with a 90-day cure period before legal action; creates enforcement fund from collected fines.