Montana's Crossroads: Unpacking the 2025 Legislative Session on Cannabis and Hemp

A detailed look at the bills shaping the future of cannabis and hemp regulation, THC limits, taxation, and market access in Montana.

As of April 19, 2025, the Montana legislature is deeply engaged in shaping the state's cannabis and hemp landscape. Following the voter-approved legalization of recreational marijuana in 2020 (Initiative 190) and subsequent market launch, lawmakers are now grappling with refining regulations, addressing public health concerns, managing tax revenues, and clarifying the status of hemp-derived products. Several key bills are progressing through the legislative process, potentially bringing significant changes to consumers and the industry alike.

Highlights of Current Legislation

THC Potency Under Scrutiny: Bills like SB 443 and HB 636 propose significant limits on THC content in various cannabis products, sparking debate about consumer choice and industry viability.
Hemp Edibles Face Potential Ban: SB 375, having passed the Senate, aims to prohibit the sale of edible hemp products containing THC, potentially closing a loophole for psychoactive hemp goods.
Marijuana Tax Revenue Debate: Multiple bills are competing to determine how Montana allocates its substantial marijuana tax revenues, with funds potentially shifting between conservation, addiction treatment, law enforcement, and other state priorities.

Key Legislative Themes in the 2025 Session

The 2025 legislative session in Montana is marked by a flurry of activity surrounding cannabis and hemp. Lawmakers are navigating complex issues related to public health, economic impact, and regulatory clarity. Here’s a breakdown of the major themes and the specific bills driving the conversation:

The Montana State Capitol in Helena, where key decisions on cannabis and hemp legislation are being made.

THC Potency Regulation

A central point of contention involves proposals to limit the amount of Tetrahydrocannabinol (THC), the primary psychoactive compound in cannabis, allowed in products available on the market.

Senate Bill 443 (SB 443): Statewide 15% THC Cap

This highly controversial bill seeks to impose a strict 15% THC potency cap across all cannabis products sold in Montana, including flower (currently allowed up to 35% THC), concentrates, and edibles. It covers various forms of THC, including delta-9 THC, THC-A, and THCP. Proponents cite public health concerns, while opponents argue it severely restricts consumer choice, harms businesses, and undermines the voter-approved legalization framework. The bill faced strong opposition during committee hearings, and while it was considered, no immediate action was taken, leaving its future uncertain.

House Bill 636 (HB 636): THC Limits for Edibles

Focusing specifically on marijuana edibles, HB 636 proposes capping THC content at 5 milligrams per serving and 100 milligrams per package. This measure aims to promote safer consumption, particularly for novice users, and mitigate potential adverse effects associated with high-potency edibles. The bill has reportedly advanced in the legislative process ("taken a step forward") and is under active consideration, suggesting it has gained some traction.

Product Restrictions: Targeting Hemp Edibles

Senate Bill 375 (SB 375): Ban on Edible Hemp Products Containing THC

This significant bill aims to prohibit the sale of any edible hemp product that contains THC. This move targets the market for hemp-derived edibles that may produce psychoactive effects, often sold outside the regulated marijuana dispensary system. SB 375 passed the Montana Senate with a decisive 45-5 vote in March 2025. It requires one more vote in the Senate before potentially moving to the House. If enacted, it would significantly impact the hemp industry and consumer access to these specific products. The bill also includes updates to hemp definitions, licensing, and enforcement.

Marijuana Tax Revenue Allocation

With recreational marijuana sales surpassing $1 billion since legalization in 2022, how the resulting tax revenue is spent has become a major legislative focus. Several bills propose different allocation strategies.

Senate Bill 307 (SB 307) and Competing Proposals

SB 307 proposes redirecting marijuana tax revenues, potentially moving funds away from established conservation programs (like Habitat Montana) and wildlife/recreation initiatives. Instead, it suggests increasing funding for the HEART Fund (Health Enhancement and Risk Reduction Trust) and creating new funds for addiction treatment, prevention programs, and marijuana regulation enforcement. This bill has advanced in the Senate. However, it faces competition from other proposals aiming to preserve conservation funding while potentially adding allocations for law enforcement or other areas. Reports indicate that dueling bills on revenue distribution have passed their respective chambers (Senate and House) and are heading towards a legislative showdown, highlighting the contention surrounding these funds.

Market Structure, Licensing, and General Revisions

Legislators are also considering changes to the overall structure of the cannabis market, licensing requirements, and general legal frameworks.

Limiting New Dispensaries

Lawmakers have reportedly given approval to a measure that would limit the number of new cannabis dispensaries allowed in the state. This suggests a move towards controlling market saturation or density.

Senate Bill 255 (SB 255): Marijuana ID Card (Withdrawn)

This bill proposed requiring adults to purchase an annual license (potentially costing $200) and obtain a specific marijuana identification card to legally purchase and possess recreational cannabis. The proposal faced significant public opposition and was ultimately withdrawn by the sponsor, with its scheduled hearing canceled.

Senate Bill 74 (SB 74): Revisions to Marijuana Laws

SB 74 aims to revise existing marijuana laws by updating definitions and regulations related to sales and licensing. It's part of the ongoing effort to refine the state's cannabis framework post-legalization and is currently under consideration.

House Bill 688 (HB 688): General Revisions

This bill also seeks to generally revise marijuana laws, indicating broader adjustments might be under consideration beyond specific issues like THC caps or taxes. It remains an active bill in the 2025 session.

Public Health and Safety Measures

Several legislative efforts focus on addressing public health and safety concerns related to cannabis legalization.

House Bill 792 (HB 792): Warning Posters

This active bill mandates the display of warning posters at points of marijuana sale, likely aimed at educating consumers about potential risks. It also grants rulemaking authority to the relevant state department.

Zero Tolerance THC Limit for Drivers Under 21 (Passed)

Legislation has reportedly passed establishing a zero-tolerance policy for THC among drivers under the age of 21, reflecting concerns about impaired driving, particularly among younger individuals.

Senate Joint Resolution 48 (SJ 48): Study on Legalization Impacts

This resolution proposes an interim study to evaluate the public health and safety impacts resulting from marijuana legalization in Montana. While not a direct regulation, its findings could inform future legislative actions.

Visualizing the Legislative Landscape

The various bills touch upon interconnected aspects of cannabis and hemp policy. This mindmap provides a visual overview of the key areas being addressed by the Montana legislature in the 2025 session.

mindmap root["Montana Cannabis & Hemp Legislation 2025"] id1["THC Regulation"] id1a["SB 443
(15% Statewide Cap)"] id1b["HB 636
(Edible Limits: 5mg/serving, 100mg/pkg)"] id2["Product Controls"] id2a["SB 375
(Ban on THC-Containing
Hemp Edibles)"] id3["Tax Revenue Allocation"] id3a["SB 307
(Redirect Funds from Conservation
to HEART Fund, Treatment, Enforcement)"] id3b["Competing Bills
(Conservation vs. Other Priorities)"] id3c["Legislative Showdown Expected"] id4["Market Structure & Licensing"] id4a["Dispensary Limits
(Measure Approved)"] id4b["SB 74
(Revisions to Sales/Licensing Laws)"] id4c["Existing Hemp Licensing
(Dept. of Agriculture Program)"] id4d["SB 255
(ID Card Requirement - Withdrawn)"] id5["Public Health & Safety"] id5a["HB 792
(Mandatory Warning Posters)"] id5b["Zero Tolerance Driving Law
(Under 21 - Passed)"] id5c["SJ 48
(Interim Study on Legalization Impacts)"] id6["General Revisions"] id6a["HB 688
(Broad Marijuana Law Updates)"]

Assessing Legislative Priorities and Potential Impact

The various legislative proposals reflect different priorities and carry potentially significant impacts. This radar chart provides a comparative visualization based on perceived legislative activity, potential market disruption, and public controversy surrounding key areas of the 2025 cannabis and hemp debates in Montana.

Note: This chart represents a qualitative assessment based on reported legislative focus and public debate intensity. Higher scores indicate greater activity, potential impact, or controversy.

Summary Table of Key Legislation

Here is a summary table outlining the primary cannabis and hemp-related bills discussed during the 2025 Montana legislative session and their reported status as of April 19, 2025:

Bill Number	Primary Focus	Key Provisions	Reported Status (as of April 19, 2025)
SB 443	THC Potency Cap	Impose 15% THC limit on all cannabis products.	Committee hearing held; faced opposition; no immediate action taken/not passed yet.
HB 636	Edible THC Limits	Limit THC to 5mg/serving, 100mg/package in marijuana edibles.	Moving forward; under committee review/consideration.
SB 375	Hemp Edible Ban	Prohibit sale of edible hemp products containing THC; update hemp regulations.	Passed Senate (45-5 vote); requires final Senate vote before potentially moving to House.
SB 307	Tax Revenue Allocation	Redirect marijuana tax funds (e.g., from conservation to HEART Fund, addiction treatment).	Advanced/Passed Senate; committee hearing held; competing bills exist, heading for showdown.
N/A (Measure)	Dispensary Limits	Limit the number of new cannabis dispensaries.	Reportedly approved by lawmakers.
SB 255	Marijuana ID Card	Require annual license/ID card for recreational use.	Introduced but subsequently withdrawn; hearing canceled.
SB 74	Marijuana Law Revisions	Update definitions and regulations for marijuana sales/licensing.	Under consideration during the 2025 session.
HB 688	General Marijuana Revisions	Generally revise state marijuana laws.	Active bill in the 2025 session.
HB 792	Warning Posters	Mandate warning posters at points of sale.	Active bill as of early April 2025.
N/A (Law)	Under 21 Driving Limit	Set zero-tolerance THC limit for drivers under 21.	Reportedly passed by the legislature.
SJ 48	Impact Study	Initiate study on public health/safety impacts of legalization.	Introduced; awaiting further action.

Hemp-Specific Considerations

While much of the legislative focus is on marijuana, hemp is also directly impacted, particularly by SB 375. It's important to remember the existing regulatory framework for hemp cultivation and processing in Montana.

Field of industrial hemp growing in Montana

Industrial hemp cultivation is regulated separately in Montana but faces potential changes from new legislation.

Existing Licensing Framework

Montana operates a USDA-approved state hemp program, managed by the Montana Department of Agriculture. Cultivating or processing hemp requires a state license, governed by the Montana Code Annotated (MCA 80-18-101 through 80-18-111) and Administrative Rules of Montana (ARM 4.19.101-202). This program enforces standards to distinguish legal hemp (containing 0.3% or less delta-9 THC on a dry weight basis) from marijuana.

Impact of SB 375

As mentioned, SB 375 specifically targets hemp by seeking to ban the sale of edible products containing any THC. This addresses concerns about psychoactive products derived from hemp that fall outside the regulated marijuana market. If passed, this would represent a significant tightening of regulations on certain segments of the hemp industry in Montana, beyond the existing cultivation rules.

Video Overview: Proposed Changes to Montana's Marijuana Industry

The Montana legislature is considering several bills that could reshape the state's legal marijuana industry. This video provides context on some of the proposed changes and their potential significance for businesses and consumers navigating the evolving regulatory environment.