Montana Consumer Data Privacy Act

Montana's comprehensive consumer privacy law gives Montana residents rights to access, correct, delete and port their personal data and to opt out of targeted advertising, sale and significant profiling, and requires opt-in consent for sensitive data. The 2025 amendments (SB 297, Ch. 567, L. 2025) lowered the applicability thresholds, narrowed the financial-institution exemption to entity-level exemptions for banks, credit unions and insurers, expanded privacy-notice rules, removed the cure period, and added a duty of care and design limits for online services offered to known minors under 18.