Colorado Proposition 132: Fentanyl Penalties, Current Law vs. the Ballot Measure

Fentanyl cases make up a growing share of drug prosecutions in Colorado, and Proposition 132 is the 2026 ballot measure that would reshape how those cases are charged and sentenced. Unlike Amendment 81, this is a statutory measure, so it only needs a simple majority to pass — but the sentencing changes it proposes are substantial.

Colorado’s Current Fentanyl Penalties

Colorado’s current fentanyl framework comes largely from HB22-1326 (2022). Under that law:

• Possession under 1 gram of a substance containing any amount of fentanyl is a misdemeanor, with no mandatory prison time.
• Possession of 1 to 4 grams is a level 4 drug felony, punishable by up to 180 days in jail for a first offense (up to 364 days for repeat offenses) and up to two years of probation. A “reasonable mistake of fact” defense is available if the person didn’t know the substance contained fentanyl.
• Distribution of under 4 grams can bring 2 to 4 years in prison; 4 to 50 grams can bring 4 to 8 years; and distribution of 50 grams or more carries mandatory prison time.
• Certain drug possession convictions are currently excluded from counting toward Colorado’s habitual criminal enhancement.

What Proposition 132 Would Change

Proposition 132 would rewrite several of those thresholds:

• Manufacture, dispensing, sale, distribution, or possession with intent to distribute any amount of fentanyl or certain related synthetic opioids would become a level 1 drug felony, punishable by 8 to 32 years in prison — regardless of quantity.
• Possession of 1 to 4 grams would become a level 3 drug felony, punishable by up to 4 years in prison, replacing today’s level 4 / up-to-180-day structure.
• Possession under 1 gram would become a new level 4 “treatment-mandated” drug felony, punishable by up to 1 year — but the charge could be reduced to a misdemeanor if the person completes court-ordered treatment.
• Proposition 132 would also remove the current exemption that keeps certain drug possession convictions from counting toward habitual-criminal status, meaning a fentanyl possession conviction could help trigger habitual-offender sentence enhancements in a later case.

State fiscal analysts estimate the measure would increase state spending by about $68.2 million a year by its fifth year, mostly from increased incarceration costs.

The Debate

Supporters point to Colorado’s rising fentanyl death toll and argue tougher, quantity-independent penalties are needed to hold dealers accountable. Opponents — including public-health and criminal-justice reform advocates — argue addiction is primarily a public-health issue, that removing quantity thresholds for the top felony level could sweep in low-level users who share or carry small amounts for others, and that the added incarceration costs would outweigh any deterrent effect.

What This Means If You’re Facing a Fentanyl Charge Now

If Proposition 132 passes, its new felony levels would apply to conduct committed after the measure’s effective date — someone charged today under the current level 4 possession scheme would continue to be sentenced under today’s law for that conduct. The bigger long-term issue is the habitual-criminal change: a fentanyl possession case that doesn’t count against you today could factor into whether a future, unrelated charge triggers habitual-offender sentencing, which can push a sentence toward the maximum of the range or beyond. And if you’re relying on the “I didn’t know it contained fentanyl” defense, it’s worth discussing with your attorney how Proposition 132’s distribution language could interact with that defense going forward.