Colorado Senate Bill 4
Session 2025B
Increase Transparency for Algorithmic Systems
Became Law
Signed by Governor on Aug 28, 2025
Origin Chamber
Senate
Type
Bill
Bill Number
4
State
Colorado
Session
2025B
Motion Text
CONCUR
Senate Roll Call Votes
Yes
Yes
Yes
Yes
Yes
Yes
Excused
Yes
Yes
Yes
Excused
Yes
Yes
Yes
Yes
Yes
Yes
President
Yes
Yes
Excused
Yes
Yes
Summary
In 2024, the general assembly enacted Senate Bill 24-205, which created consumer protections in interactions with artificial intelligence systems. The act extends the effective date of the requirements of Senate Bill 24-205 to June 30, 2026.
APPROVED by Governor August 28, 2025
EFFECTIVE November 25, 2025(Note: This summary applies to this bill as enacted.)
Signed Act (08/28/2025)
Final Act (08/26/2025)
Rerevised (08/26/2025)
Revised (08/25/2025)
Reengrossed (08/25/2025)
Engrossed (08/24/2025)
Introduced (08/21/2025)
PA3 (08/25/2025)
PA2 (08/24/2025)
PA1 (08/21/2025)
Committee Amendment
Fiscal Note FN4 (09/10/2025)
Fiscal Note FN3 (08/25/2025)
Fiscal Note FN2 (08/24/2025)
Fiscal Note FN1 (08/21/2025)
Fiscal Note SA2 (08/25/2025)
Fiscal Note SA1 (08/22/2025)
Sort by most recent
08/28/2025
Office of the Governor
Governor Signed
08/26/2025
Office of the Governor
Sent to the Governor
08/26/2025
House
Signed by the Speaker of the House
08/26/2025
Senate
Signed by the President of the Senate
08/26/2025
Senate
Senate Considered House Amendments - Result was to Concur - Repass
08/26/2025
House
House Third Reading Passed - No Amendments
08/25/2025
House
House Second Reading Special Order - Passed with Amendments - Committee
08/25/2025
House
House Committee on Appropriations Refer Amended to House Committee of the Whole
08/25/2025
House
Introduced In House - Assigned to Appropriations
08/25/2025
Senate
Senate Third Reading Passed with Amendments - Floor
08/24/2025
Senate
Senate Second Reading Special Order - Passed with Amendments - Committee, Floor
08/24/2025
Senate
Senate Committee of the Whole Amendment - Change from Passed to Lost
08/24/2025
Senate
Senate Committee on Appropriations Refer Amended to Senate Committee of the Whole
08/21/2025
Senate
Senate Committee on Business, Labor, & Technology Refer Amended to Appropriations
08/21/2025
Senate
Introduced In Senate - Assigned to Business, Labor, & Technology
Sources
CO Legislature
Record Created
Aug 23, 2025 12:57:30 AM
Record Updated
Sep 10, 2025 4:50:59 PM