Colorado Automated Decision-Making Technology Act (SB 26-189)

Properties

jurisdiction: US, Colorado
level: state
domain: automated-decision
status: enacted-pending
scope: Regulates use of automated decision-making technology that materially influences consequential decisions, including employment, housing, education, healthcare, financial services, and government benefits. Excludes routine tools such as calculators, spreadsheets, antivirus software, and fraud prevention systems.
obligations: Developers: provide deployers with technical documentation on intended uses, training data categories, known limitations, and instructions; notify deployers of material updates; retain records for three years. Deployers: provide clear pre-use notice at point of interaction; within 30 days of an adverse outcome, furnish a plain-language explanation of the ADMT role. Consumers have rights to request data correction and meaningful human review following adverse outcomes where commercially reasonable.
effectiveDate: 2027-01-01
enactedDate: 2026-05-14
appliesTo: developers and deployers of covered ADMT used in consequential decisions affecting Colorado residents
officialUrl: https://leg.colorado.gov/bills/sb26-189
notes: Signed May 14, 2026 by Governor Polis. Repeals and replaces SB 24-205 (the original 2024 Colorado AI Act, which never went into effect). No private right of action; enforcement exclusively by the Colorado Attorney General as unfair/deceptive trade practices with a 60-day cure period (sunsets January 1, 2030). Developer technical-documentation obligations begin January 1, 2027. Rulemaking update (re-verified 2026-08-22): on August 11, 2026, the Colorado Attorney General's Office released draft implementing regulations for the ADMT Act, jointly with the HB 26-1263 chatbot rulemaking; written comments are due by September 4, 2026 to be considered in pre-hearing revisions, and a public hearing with a final comment deadline is set for October 26, 2026.

Properties

jurisdiction

US, Colorado

level

state

domain

automated-decision

status

enacted-pending

scope

Regulates use of automated decision-making technology that materially influences consequential decisions, including employment, housing, education, healthcare, financial services, and government benefits. Excludes routine tools such as calculators, spreadsheets, antivirus software, and fraud prevention systems.

obligations

Developers: provide deployers with technical documentation on intended uses, training data categories, known limitations, and instructions; notify deployers of material updates; retain records for three years. Deployers: provide clear pre-use notice at point of interaction; within 30 days of an adverse outcome, furnish a plain-language explanation of the ADMT role. Consumers have rights to request data correction and meaningful human review following adverse outcomes where commercially reasonable.

effectiveDate

2027-01-01

enactedDate

2026-05-14

appliesTo

developers and deployers of covered ADMT used in consequential decisions affecting Colorado residents

officialUrl

https://leg.colorado.gov/bills/sb26-189

notes

Signed May 14, 2026 by Governor Polis. Repeals and replaces SB 24-205 (the original 2024 Colorado AI Act, which never went into effect). No private right of action; enforcement exclusively by the Colorado Attorney General as unfair/deceptive trade practices with a 60-day cure period (sunsets January 1, 2030). Developer technical-documentation obligations begin January 1, 2027. Rulemaking update (re-verified 2026-08-22): on August 11, 2026, the Colorado Attorney General's Office released draft implementing regulations for the ADMT Act, jointly with the HB 26-1263 chatbot rulemaking; written comments are due by September 4, 2026 to be considered in pre-hearing revisions, and a public hearing with a final comment deadline is set for October 26, 2026.