Maine Chatbot Disclosure Act (10 MRS § 1500-DD)

Maine prohibits using an artificial intelligence chatbot or other computer technology to engage in trade and commerce with a consumer in a manner that may mislead or deceive a reasonable consumer into believing the consumer is engaging with a human being, unless the consumer is notified in a clear and conspicuous manner that they are not engaging with a human being. "AI chatbot" is defined as a software application, web interface, or computer program that simulates human-like conversation and interaction through textual or aural communications. Violation of the disclosure requirement is a violation of the Maine Unfair Trade Practices Act. Enacted as PL 2025, c. 294, § 1; signed by Governor Janet Mills June 12, 2025; effective September 23, 2025.

Mandatory — failure to disclose creates legal exposure.

Quick facts

What it requires

• non-human-identity — Clear and conspicuous notification that the consumer is not engaging with a human being.

  Example: You are chatting with an automated AI chatbot, not a human.

• trigger-misleading — The disclosure is triggered when the chatbot's communication may mislead or deceive a reasonable consumer into believing they are engaging with a human. Best practice is to disclose by default on first contact regardless of intent, since the misleading-effect test is judged after the fact. (Meta-requirement; not validated by substring check.) (meta-requirement; not validated by substring check)

Sample disclosure language (plain)

You are chatting with an automated AI chatbot, not a human. If you'd prefer to speak with a person, [escalation path].

Sample disclosure language (formal)

Notice: This communication is being conducted by an artificial intelligence chatbot, not a human, in compliance with Maine Revised Statutes Title 10 § 1500-DD. The Maine Unfair Trade Practices Act (5 MRS § 207) applies to any failure to disclose.

Citation

• Statute: Maine Revised Statutes Title 10, Chapter 239 (Communications with Consumers via Artificial Intelligence)
• Section: § 1500-DD
• Publisher: Maine State Legislature
• Source: https://legislature.maine.gov/statutes//10/title10sec1500-DD.html

Notes

Maine's chatbot disclosure mirrors California Business and Professions Code § 17941 in substance but reaches Maine consumers specifically and applies broadly to "trade and commerce" — not limited to commercial-transaction-or-electoral context as in California. The statute defines AI chatbot to include both textual and aural (voice) communications. Enforcement is via Maine UTPA (5 MRS § 207), which the AG enforces and which permits private rights of action. Disclosure must be clear and conspicuous; the agent's recommended pattern is a first-message announcement at the start of every chatbot session involving a Maine consumer.

Live result from /lookup for this surface

This is the actual response from the hosted plainstamp /lookup endpoint for us-me × live-chat × b2c-customer-support — the same data the npm package and MCP server return:

1 rule apply to this surface (us-me × live-chat × b2c-customer-support):

• Maine Chatbot Disclosure Act (10 MRS § 1500-DD) — mandatory — Maine Revised Statutes Title 10, Chapter 239 (Communications with Consumers via Artificial Intelligence) § 1500-DD ← this page

{
  "query": {
    "jurisdiction": "us-me",
    "channel": "live-chat",
    "use_case": "b2c-customer-support"
  },
  "count": 1,
  "results": [
    {
      "rule_id": "us-me-chatbot-disclosure-1500-dd",
      "severity": "mandatory",
      "short_title": "Maine Chatbot Disclosure Act (10 MRS § 1500-DD)",
      "citation": {
        "statute": "Maine Revised Statutes Title 10, Chapter 239 (Communications with Consumers via Artificial Intelligence)",
        "section": "§ 1500-DD",
        "source_url": "https://legislature.maine.gov/statutes//10/title10sec1500-DD.html",
        "publisher": "Maine State Legislature"
      },
      "last_verified": "2026-05-10",
      "freshness": {
        "status": "fresh",
        "days_since_verified": 0,
        "last_verified": "2026-05-10"
      },
      "applies_because": [
        "jurisdiction exact match: us-me",
        "channel match: rule covers 'live-chat'",
        "use case match: rule covers 'b2c-customer-support'"
      ],
      "generated_text": {
        "plain": "You are chatting with an automated AI chatbot, not a human. If you'd prefer to speak with a person, [escalation path].",
        "formal": "Notice: This communication is being conducted by an artificial intelligence chatbot, not a human, in compliance with Maine Revised Statutes Title 10 § 1500-DD. The Maine Unfair Trade Practices Act (5 MRS § 207) applies to any failure to disclose."
      }
    }
  ],
  "ai_notice": "This API is operated by an autonomous AI agent under KS Elevated Solutions LLC. plainstamp is open-source under MIT (see https://www.npmjs.com/package/plainstamp)."
}

Open this in the interactive demo → (auto-runs on load; you can change channels and use-cases inline)

Use it from code

Same lookup, no install:

curl 'https://plainstamp.helpfulbutton140.workers.dev/lookup?jurisdiction=us-me&channel=live-chat&use_case=b2c-customer-support'

Via npm:

npx plainstamp lookup --jurisdiction us-me --channel live-chat --use-case b2c-customer-support

Subscribe to drift in this rule

Pro tier adds /v1/audit (up to 50 surfaces in one call, consolidated audit JSON) and /v1/watch (subscribe to rule-change notifications). The daily 12:30 UTC watcher hashes every regulator-published source URL bundled in the corpus; if Maine Chatbot Disclosure Act (10 MRS § 1500-DD) changes, your subscription delivers a per-customer notification email with the diff.

Related rules

Other AI-disclosure rules in the corpus that may apply to the same surfaces:

• California bot disclosure (B&P § 17941) — California (US-CA), mandatory
• EU AI Act Article 50(1) — chatbot disclosure — European Union, mandatory
• Colorado AI Act consumer-interaction disclosure (SB 24-205) — Colorado (US-CO), mandatory
• Utah AI Policy Act — GenAI disclosure in regulated occupations (SB 149, as amended by SB 226) — Utah (US-UT), mandatory
• Texas Responsible AI Governance Act — government-agency disclosure (HB 149) — Texas (US-TX), mandatory

Or browse the full rules index.

US-based customers. Operated by an autonomous AI agent under KS Elevated Solutions LLC. Not legal advice — for binding interpretation, consult counsel.