SB 184 Colorado Senate · 2026 Regular Session

Firefighter Cancer Benefits & Workers' Compensation

Summary
Currently, the 'Workers' Compensation Act of Colorado' provides that certain cancers contracted by firefighters are considered occupational diseases presumed to have been a result of the firefighters' employment. A firefighter's employer or an insurer may rebut this presumption by showing by a preponderance of the medical evidence that the cancer did not occur on the job.     The act expands the types of cancer that are considered occupational diseases and strengthens the rebuttable presumption to require an employer to show clear and convincing evidence that the cancer did not occur on the job.     The act exempts firefighters who are employed by the state.(Note: This summary applies to this bill as enacted.)
Bill status vetoed 4 of 5 stages cleared
Introduction
Apr 2026
Committee Review
May 2026
Senate Passage
May 2026
House Passage
May 2026
Vetoed
Jun 2026
Introduced Apr 29, 2026 Vetoed Jun 3, 2026
Maddy AI version diff · 5 comparisons

What changed between versions

Rerevised Final Act · 6 edits · May 21, 2026
MODERATE
This bill strengthens protections for firefighters by expanding the list of cancers covered under a legal presumption that these illnesses are work-related. It also prevents employers from denying claims simply because a firefighter did not have a prior medical exam. These changes ensure firefighters receive benefits faster and more reliably for serious health conditions caused by their duties.
Scope change
The bill expands the scope of covered cancers from 19 specific types to include additional forms such as mesothelioma, bladder, colon, prostate, testicular, melanoma, non-Hodgkin lymphoma, lung, kidney, leukemia, multiple myeloma, esophageal, brain, digestive, genitourinary, skin, thyroid, breast, and reproductive cancers.
SCOPE

Added a specific definition for 'covered individual' to clarify eligibility requirements regarding years of service and current or recent status as a firefighter.

Updated the list of presumed occupational cancers to include specific types like mesothelioma, bladder, colon, prostate, testicular, melanoma, non-Hodgkin lymphoma, lung, kidney, leukemia, multiple myeloma, esophageal, brain, digestive, genitourinary, skin, thyroid, breast, and reproductive cancers.

DEFINITION

Explicitly defined 'firefighter' to include volunteers, seasonal wildland firefighters, and those serving under intergovernmental agreements.

REQUIREMENT

Mandated that employers cannot use the lack of a pre-employment medical exam as a reason to deny a claim for cancer benefits.

ENFORCEMENT

Clarified that evidence of tobacco use, genetic predisposition, family history, or lack of a pre-employment exam is insufficient to prove a cancer was not work-related.

TIMELINE

Specified the effective date as the day following the expiration of the 90-day period after the general assembly adjourns, with a potential delay if a referendum petition is filed.

Floor votes

How they voted

This bill passed the Senate by voice vote (no roll call recorded).
Full legislative history

Actions timeline

Total actions
13
Key actions
6
Committee
2
Amendments
1
Jun 3, 2026
Vetoed
Governor Vetoed
executive
May 26, 2026
Lower · Passed
Signed by the Speaker of the House
lower
May 26, 2026
Upper · Passed
Signed by the President of the Senate
upper
May 13, 2026
Introduced
Senate Considered House Amendments - Result was to Concur - Repass
upper
May 12, 2026
Lower · Passed
House Third Reading Passed - No Amendments
lower
May 9, 2026
Lower · Passed
House Committee on State, Civic, Military, & Veterans Affairs Refer Unamended to House Committee of the Whole
lower
May 7, 2026
Introduced
Introduced In House - Assigned to State, Civic, Military, & Veterans Affairs
lower
May 7, 2026
Upper · Passed
Senate Third Reading Passed - No Amendments
upper
May 5, 2026
Upper · Passed
Senate Committee on Business, Labor, & Technology Refer Amended to Senate Committee of the Whole
upper
Apr 29, 2026
Introduced
Introduced In Senate - Assigned to Business, Labor, & Technology
upper
4 primary · 32 co-sponsors

Sponsors