A bill advancing through the Colorado state legislature would require warning labels to be placed on gas pumps, alerting consumers that fossil fuels contribute to climate change and are associated with health risks.
The measure, titled HB25-1277, also known as the Increasing Transparency Impact of Fuel Products Act, passed the Colorado House earlier this month and is scheduled to be heard in the Senate Transportation and Energy Committee.
If signed into law, HB25-1277 would mandate that all retailers selling gasoline or other liquid fuels display a warning label with the following language:
“WARNING: Use of this product releases air pollutants and greenhouse gases, known by the state of Colorado to be linked to significant health impacts and global heating, respectively.”
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The warning would apply to any gas or liquid fuels derived from a wide range of sources, including:
- The processing of crude oil or other liquids at petroleum refineries
- The extraction of liquid hydrocarbons from natural gas processing plants
- Finished petroleum products blended at fuel terminals
- Biomass-based fuels, such as ethanol, created through chemical conversion processes
Retailers who fail to comply with the labeling requirement would be treated as having committed deceptive trade practices under Colorado law and could face enforcement actions under existing consumer protection statutes.
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The bill is part of a growing push by lawmakers to tie fossil fuel consumption to environmental and health concerns.
Spoke to HB25-1277 which will require gas station owners to place a sign on all gas pumps saying “Combustion of this product releases greenhouse gases known by the state of Colorado to be linked to global heating and significant health impacts.” pic.twitter.com/ZReHgvgKIA
— Dan Woog (@DanielPWoog) April 1, 2025
Supporters argue that the labels will promote transparency and educate the public about the broader impacts of using petroleum-based fuels.
Opponents of the legislation argue that the proposal is one-sided and ignores the broader historical context of fossil fuel use.
Over the past century, increased access to reliable energy sources—driven largely by fossil fuels—has been linked to significant improvements in human well-being.
According to historical data, global life expectancy has more than doubled over the last 100 years.
Infant mortality rates have dropped by approximately 90%, and deaths from natural disasters have declined by roughly 98%, trends that coincide with the widespread development and availability of fossil fuel-powered infrastructure and technologies.
The bill’s language focuses specifically on greenhouse gas emissions and health impacts without addressing the economic or societal benefits that fossil fuels have historically provided.
Retailers have expressed concern about being penalized for failing to apply politically driven messaging to their fuel dispensers.
Colorado would become one of the first states in the U.S. to require such warning labels on gasoline pumps if HB25-1277 is signed into law.
The legislation comes amid a broader debate over climate policy and energy regulation at both the state and federal levels.
The Senate Transportation and Energy Committee has not yet announced a final vote on the bill.
If passed, the new labeling mandate would take effect in the near future, although the exact implementation timeline has not been publicly confirmed.
The proposal continues to generate discussion among lawmakers, business groups, and environmental advocates ahead of its next committee hearing.
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