Requires any person engaging in a commercial transaction or trade practice with a consumer to disclose, clearly and conspicuously at the outset, when the consumer is interacting with a chatbot, AI agent, avatar, or other conversational computer technology rather than a human — but only when a consumer could reasonably believe they are engaging with a human. The bill is added to South Dakota's existing deceptive trade practices chapter (37-24). Enforcement is available through both a private right of action (with $1,000 per-violation liquidated damages and a $10 million class action cap) and attorney general injunctive relief. Internet service providers involved only in routine transmission are carved out from private suit liability.