On Nov. 3, Colorado voters will decide whether to make possession of any amount of a substance containing fentanyl or specified related synthetic opioids a felony, a proposal that would increase prison exposure and add to state spending.
Proposition 132 is a citizen initiative; a majority vote would put it into effect Jan. 1, 2027. It covers fentanyl and specified related synthetic opioids, including carfentanil, benzimidazole opiates and their analogues. The Colorado 2026 Blue Book says the measure would use the full mixture’s weight when applying weight thresholds.
Distribution of any amount would carry a mandatory prison term of eight to 32 years. The proposal would also end “Good Samaritan” sentence reductions for distribution offenses. Under current law, prison is barred for possessing less than one gram without intent to distribute only for people who do not have multiple prior fentanyl convictions. The proposal would permit six months to a year in prison for possession below one gram, although successful completion of court-ordered treatment could allow the felony to be reduced to a misdemeanor. For distribution under four grams, the Blue Book lists a current possible sentence of two to four years.
The Colorado Legislative Council estimates added General Fund spending of $0.9 million in the first budget year, $8.9 million in the second and $68.2 million by the fifth. The Blue Book links the projected prison costs to more people serving longer terms. Courts, public defenders and prisons would draw state funding, while county-funded district attorneys would face higher costs; the effect on other state programs is unknown.
Overdose estimates are moving in different directions nationally and in Colorado. The Centers for Disease Control and Prevention (CDC) put predicted U.S. overdose deaths at 66,478 in the 12 months through May 2026, down 11.5% from the prior 12 months. Colorado’s predicted count rose 10.3%, to 1,847 from 1,674. The provisional estimates, analyzed Oct. 4, are adjusted for incomplete reporting and may change.
Colorado’s 2022 law classified knowing possession of a fentanyl-containing mixture weighing more than one gram and no more than four grams as a Level 4 drug felony. A state-commissioned evaluation found no reduction in the state’s overdose-death trend associated with that law. A 2025 peer-reviewed study found no statistically significant post-law changes in buprenorphine starts or retention or methadone starts. It reported a downward methadone-retention trend, but that finding was not robust under an alternative assumption about missing discharge dates. The studies examined the 2022 law, not Proposition 132.
The Blue Book says supporters argue tougher penalties could deter fentanyl use and target traffickers. Opponents contend the changes could discourage treatment-seeking or emergency calls and shift resources toward prisons. Joshua Barocas, a professor of medicine at the University of Colorado Anschutz, asked in a commentary published by The Conversation, “What evidence suggests that increasing those penalties further will address the rise in overdose deaths?”
Voters will decide on Nov. 3; if approved, the measure takes effect Jan. 1, 2027.
