Colorado passed first-in-the-nation legislation requiring warning labels on gas stoves in June 2025. These warnings are similar to what is required by cigarette labeling laws.

The required labels urge consumers to educate themselves about the air quality implications of indoor gas stoves and direct consumers to the Colorado Department of Public Health and Environment for information on the health impacts. This could have a substantial impact, as government agencies estimate that about one-third of Colorado’s households use gas as their primary cooking source.

The law went into effect on Aug. 6. The Association of Home Appliance Manufacturers is now suing Colorado and is asking a federal court to temporarily block the law from being enforced while the case proceeds. The parties are awaiting a hearing on this request.

I’m a legal scholar with expertise in First Amendment law. I research and publish papers focusing on laws, such as the new Colorado statute, that compel businesses to disclose information to consumers.

In my opinion, in opposing warning labels, the gas industry and its trade association are weaponizing the First Amendment to undermine a commonsense regulation that aims to keep residents safe and informed.

Walk down an aisle in any toy store and you’ll see tags alerting parents to the risk of choking. Flip over your prescription medication and you can read its side........

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