Colorado Launches Workers' Comp Medical Marijuana Pilot Program

Program Structure and Participation

Three Colorado workers' comp carriers enrolled in the pilot, which runs through January 2028 and limits monthly cannabis reimbursement to $500 per injured worker. The Division of Workers' Compensation selected Pinnacol Assurance, Travelers, and Liberty Mutual as participating insurers after a competitive application process that began in March 2026.

Eligible claimants must hold a valid Colorado Medical Marijuana Registry card and receive prior authorization from their treating physician. Safety-sensitive positions are excluded. That means commercial drivers, heavy equipment operators, and emergency responders can't participate.

Reimbursement covers dispensary purchases of flower, concentrates, edibles, and topicals. Smoking devices and accessories aren't covered.

Legal Framework Behind the Pilot

House Bill 26-1089, signed into law in May 2026, authorized the Division of Workers' Compensation to establish the pilot and exempted participating insurers from federal prosecution under the Rohrabacher-Farr amendment. The statute requires insurers to treat medical marijuana "on par with prescription pharmaceuticals" for reimbursement purposes, though federal Schedule I status prevents cannabis from being dispensed via traditional pharmacy channels.

Colorado's workers' comp statute already allowed administrative law judges to approve cannabis treatment on a case-by-case basis since 2020, but fewer than 40 claims received approval between 2020 and 2025. The new pilot streamlines authorization and shifts decision-making to insurers.

Opioid Substitution Rationale

The Division of Workers' Compensation cited a 67% reduction in opioid prescriptions among Colorado medical marijuana cardholders as the primary justification for the pilot. A 2024 study by the Colorado Department of Public Health and Environment found that workers' comp claimants who used cannabis reported 23% fewer lost workdays compared to those on opioid pain management protocols.

• Average opioid prescription duration for comp claimants: 89 days
• Average cannabis treatment duration: 112 days
• Return-to-work rate (cannabis group): 78%
• Return-to-work rate (opioid group): 61%

Insurers expect the $500 monthly cap to cost less than the average opioid regimen, which runs $680 per month including pharmacy dispensing fees and physician monitoring.

Federal Tax and Compliance Complications

Participating insurers can't deduct cannabis reimbursements as a business expense under IRC Section 280E, creating a tax penalty estimated at $140,000 annually per insurer based on projected claim volume. Liberty Mutual disclosed in its pilot application that it expects to reimburse 120 claimants in year one, generating roughly $720,000 in non-deductible expenses.

Insurers are also barred from using interstate banking for cannabis-related transactions, requiring them to establish state-chartered accounts or partner with credit unions that accept cannabis cash. Pinnacol Assurance announced it'll reimburse claimants via prepaid debit cards loaded monthly, avoiding direct dispensary payments.

What Employers and Claimants Need to Know

Employers whose workers' comp policies are underwritten by the three participating carriers don't need to opt in—the pilot applies automatically to eligible claims filed after July 22, 2026. Employers retain the right to contest cannabis treatment authorization through the standard administrative hearing process, however.

Claimants must submit dispensary receipts within 30 days of purchase to receive reimbursement. The Division of Workers' Compensation will track total THC and CBD dosing but hasn't set potency limits, leaving that determination to treating physicians.

For full background on this story, see the CannIntel topic hub on Colorado Workers' Comp Medical Marijuana.

What Happens After January 2028

The Division of Workers' Compensation will report findings to the Colorado General Assembly by March 2028, including data on claim costs, return-to-work rates, and adverse events. If the pilot shows cost savings or improved outcomes, the legislature is expected to consider a permanent expansion to all workers' comp carriers.

Other states are watching. New Mexico and New York have drafted similar bills but haven't yet authorized pilots. The key variable: whether federal rescheduling of cannabis to Schedule III or below occurs before 2028, which would eliminate the 280E tax penalty and accelerate interstate adoption.