Colorado's New Permit-to-Purchase for Semi-Automatic Firearms: What Buyers Need to Know

Starting August 1, 2026, Colorado requires a Firearms Safety Course Eligibility Card before purchasing most specified semi-automatic firearms. Senate Bill 25-003 creates what is functionally a permit-to-purchase system for a defined category of firearms — making Colorado one of a small number of states to impose this type of requirement.

The law applies to semi-automatic firearms with detachable magazines, including certain rifles and certain handguns meeting the statutory definition. It does not apply to all firearms, and the specific definitions matter for determining which purchases require the card and which do not.

How the eligibility card works

To obtain a Firearms Safety Course Eligibility Card, an applicant must complete two steps: pass a background check and complete a state-approved firearms safety course. The course must be offered by an approved instructor and cover the topics specified by the state. Once both requirements are met, the applicant receives the card, which then serves as a prerequisite for purchasing any covered semi-automatic firearm from a licensed dealer.

The card is not a substitute for the point-of-sale background check — that requirement continues to apply independently. The card is an additional prerequisite that must be completed before the dealer can proceed with the transaction.

What firearms are covered

The law defines "specified semi-automatic firearms" based on action type and magazine configuration. The trigger is a semi-automatic firearm — whether rifle, pistol, or shotgun — with a detachable magazine meeting the statutory definition. Not every semi-automatic firearm is covered; fixed-magazine firearms and those not meeting the specific definition are excluded.

If you're uncertain whether a particular firearm falls within the law's scope, the safest approach is to check the statutory language or consult your FFL before attempting a purchase. Dealers have been adjusting their processes to accommodate the new requirement and should be able to tell you whether a specific model requires the card.

What this means for Colorado gun owners

For buyers, the practical impact is a new step before purchasing certain firearms. The safety course requirement means planning ahead — you cannot walk into a store and buy a covered semi-automatic firearm the same day you decide to buy one unless you already hold the card. For buyers who already hold a concealed carry permit that required a safety course, it's worth checking whether that course satisfies the SB25-003 requirement or whether a separate course is needed.

For FFLs, the law adds a verification step to the sales process and requires maintaining records of eligibility card validation. Dealers who have not yet updated their processes should do so — the law is in effect, and sales of covered firearms without card verification expose the dealer to liability.

The legal landscape

SB25-003 is part of a broader package of firearms legislation Colorado enacted in 2025 and 2026, which also includes new requirements for retail ammunition sales (HB25-1133) and restrictions on 3D-printed firearms and components (HB26-1144). Colorado's firearms regulatory environment is among the most active in the country, and the cumulative effect of these laws means that buyers and dealers need to stay current rather than relying on knowledge that predates the latest legislative session.

Legal challenges are possible. Permit-to-purchase requirements for firearms have faced Second Amendment scrutiny in other states, and the post-Bruen legal framework has introduced new uncertainty about which regulatory requirements survive constitutional analysis. Whether SB25-003 faces a challenge, and how it would fare, remains to be seen.

The bottom line

If you're buying a semi-automatic firearm with a detachable magazine in Colorado after August 1, 2026, you need the eligibility card first. The safety course and background check requirements mean planning ahead rather than making an impulse purchase. Check the specific statutory definitions, get the card, and work with your FFL to ensure compliance on both sides of the transaction.