SB 25-053 Colorado Senate · 2025 Regular Session

Protect Wild Bison

Summary
The act classifies bison as big game unless the bison are livestock. Classifying bison as wildlife means that hunting or taking one is illegal unless authorized by rule of the parks and wildlife commission. The act also clarifies that "wildlife" does not include privately owned cattle, including bison legally reduced to captivity or bison that have escaped lawful captivity, or bison owned by or lawfully reduced to captivity by an Indian tribe. The fee for issuing a bison hunting license is set at $374.22 for a resident and $2,756.74 for a nonresident. The penalty for illegal possession of wild bison is a fine of not less than $1,000 and not more than $100,000, or imprisonment for not more than one year in the county jail, and an assessment of 20 license suspension points. The penalty for illegally killing or capturing a bison is a fine of $10,000. The value of a bison is set at $1,000 for the purposes of recovering the value of a bison that is illegally killed or captured. (Note: This summary applies to this bill as enacted.)
Sub-Topics: Wildlife
Bill status signed all 5 stages cleared
Introduction
Jan 2025
Committee Review
Apr 2025
Senate Passage
Apr 2025
House Passage
Apr 2025
Signed into Law
May 2025
Introduced Jan 15, 2025 Signed May 22, 2025
Maddy AI version diff · 8 comparisons

What changed between versions

PA1 (03/21/2025) → PA2 (04/11/2025) · 4 edits
MODERATE
This bill was amended to clarify that bison are classified as wildlife unless specifically designated as livestock, and to add funding for wildlife operations. The Senate version expanded the bill's language to explicitly include an appropriation and clarified the classification framework for bison management.
Scope change
The bill now explicitly classifies bison as wildlife by default unless they are classified as livestock, expanding the scope of wildlife protection to include bison under this default classification.
DEFINITION

The title was amended to clarify that bison are classified as wildlife unless classified as livestock, making the default classification clearer.

The definition of 'bison' was retained and clarified to refer to American bison (Bos bison or Bison bison) classified as wildlife.

FISCAL

A new appropriation of $75,000 was added for the 2025-26 fiscal year to fund wildlife operations by the division of parks and wildlife.

ELIGIBILITY

Exemptions for privately owned cattle and bison, as well as bison owned by Indian tribes, remain unchanged, maintaining existing protections for tribal bison.

Floor votes · Senate Apr 17, 2025 · House Apr 28, 2025

How they voted

23–11
Passed
Total votes 34
Apr 17, 2025
D Democratic22
22 Yea
100% Yea
R Republican12
1 Yea 11 Nay
91% Nay
Vote distribution
All Yea All Nay Mixed No data
Full legislative history

Actions timeline

Total actions
15
Key actions
5
Committee
4
May 22, 2025
Signed into law
Governor Signed
executive
Apr 28, 2025
Lower · Passed
House Third Reading Passed - No Amendments
lower
Apr 25, 2025
Lower · Passed
House Committee on Appropriations Refer Unamended to House Committee of the Whole
lower
Apr 21, 2025
Committee
House Committee on Agriculture, Water & Natural Resources Refer Unamended to Appropriations
lower
Apr 17, 2025
Introduced
Introduced In House - Assigned to Agriculture, Water & Natural Resources
lower
Apr 17, 2025
Upper · Passed
Senate Third Reading Passed - No Amendments
upper
Apr 11, 2025
Upper · Passed
Senate Committee on Appropriations Refer Amended to Senate Committee of the Whole
upper
Mar 20, 2025
Committee
Senate Committee on Agriculture & Natural Resources Refer Amended to Appropriations
upper
Jan 15, 2025
Introduced
Introduced In Senate - Assigned to Agriculture & Natural Resources
upper
3 primary · 22 co-sponsors

Sponsors