COLORADO · UPDATED FOR SB 26-189 (EFFECTIVE JAN 1, 2027)

Colorado AI Law: Complete Small Business Guide

Colorado passed the first major U.S. AI disclosure law. If you have customers in Colorado, here's what the current law requires and how to prepare before it takes effect.

Legislative update (as of August 2026): Colorado repealed and replaced the original Colorado AI Act (SB 24-205) with SB 26-189, signed May 14, 2026 and effective January 1, 2027. The new law is narrower: it regulates automated decision-making technology (ADMT) used in consequential decisions and drops the original mandatory impact-assessment, risk-management-program, and "high-risk AI system" duty-of-care framework. This guide has been rewritten to describe SB 26-189 as it stands. For the history of the repealed 2024 law, see Colorado SB 24-205, Explained.

What this law actually does

Colorado SB 26-189 is a notice law, not an auditing law. It applies when a business uses "covered automated decision-making technology" to materially influence a consequential decision about a Colorado consumer — decisions about things like employment, credit and lending, housing, insurance, education, health care, and essential government services. If AI is in that loop, the consumer has to be told.

Enforcement sits with the Colorado Attorney General under the Colorado Consumer Protection Act, which carries civil penalties of up to $20,000 per violation. There is no private right of action.

Does it apply to my business?

The trigger is narrower than under the old law. Ask two questions:

If the answer to both is yes, SB 26-189's notice duties apply — and there is no small business exemption. If AI only powers marketing copy, product recommendations, or a support chat widget, SB 26-189 is likely not your main exposure. Colorado's separate Chatbot Safety Act (HB 26-1263) is — it takes effect the same day and requires telling users they're talking to AI. See the Colorado chatbot law guide.

What you need to do

SB 26-189 gives deployers three core duties:

Notably not required under SB 26-189: annual impact assessments, a formal risk-management program, or the NIST-aligned duty of care that the repealed SB 24-205 imposed. Those obligations went away with the 2024 law.

Draft rules are out — and they add a vendor question

On August 11, 2026, Colorado filed proposed rules implementing SB 26-189 alongside the chatbot law. They're drafts, not final, but they sharpen one thing that matters when choosing tools: developers would have to give deployers documentation covering intended use, known harmful uses and limitations, the categories of personal data used in training, instructions for meaningful human oversight, and notice of material updates — retained at least three years.

Flip that around and it's your procurement checklist. If a vendor can't produce those five items, meeting your own duties above gets much harder. Public comment runs through October 26, 2026. Full breakdown: Colorado's draft AI rules, explained.

The cheapest path to compliance

For most SMBs, compliance is mostly about notice language and a documented process — not ripping out AI tools. Inventory where automation touches a consequential decision. Add a plain-English notice at that point. Write down who a consumer asks for human review, and make sure someone actually answers within 30 days. Separately, if you run a chat widget, add an "You're chatting with an AI assistant" disclosure for the chatbot law.

Real risk: SB 26-189 takes effect January 1, 2027 and is enforced by the Colorado Attorney General as a deceptive trade practice — up to $20,000 per violation. Businesses that run AI-assisted hiring, lending, or tenant screening with no consumer notice are the obvious early targets, and the fix is a notice, not a rebuild.

How to find out where you stand

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This article provides educational information only, not legal advice. Consult a qualified attorney for compliance decisions specific to your business. Regulations change frequently and the information here may become outdated.