MO SB859

Declares all AI systems to be non-sentient entities under Missouri state law, prohibiting any AI from being granted legal personhood, consciousness status, or rights analogous to living beings

Prohibits AI systems from marrying humans, serving as corporate officers or directors, or owning property; any such arrangements are void and without legal effect

Establishes that owners and users bear responsibility for harm caused by AI systems, while developers and manufacturers may be liable for design defects under product liability principles

Authorizes courts to pierce the corporate veil when AI-related subsidiaries are undercapitalized or structured to evade liability for AI-caused harm

Requires developers, manufacturers, and owners to implement safety mechanisms and conduct risk assessments, with mandatory reporting to authorities for severe incidents involving bodily harm, death, or major property damage; effective August 28, 2026