Amends Massachusetts General Laws Chapter 176O, Section 12, to regulate the use of AI, algorithms, and other software tools by health insurance carriers and utilization review organizations for utilization review or utilization management functions based on medical necessity. Requires that AI tools base determinations on individualized patient clinical data rather than solely on group datasets, prohibits AI from making medical necessity determinations (reserving those for licensed physicians or competent health care professionals), and mandates non-discrimination, periodic performance review, patient data use limitations, and regulatory audit accessibility. Applies to prospective, retrospective, and concurrent review of covered health care services. The Division of Insurance and Executive Office of Health and Human Services have oversight and may issue implementing guidance.