Hemp Building Codes
Bipartisan House bill requiring the state to develop building code rules for hempcrete and straw bale construction, making it easier to build with sustainable hemp-based materials.
Last updated: Mar 6, 2025 · 94th Legislature, 2025-2026 Session
Plain-English Overview
HF2005 is the House companion to SF2923, and what makes it stand out is its bipartisan sponsorship. Representative Katie Jones leads the bill with a co-author list that crosses party lines: Republicans Joshua Heintzeman and Dave Baker alongside Democrats Larry Kraft and Ned Carroll. In a legislative session where most cannabis-related bills split along party lines, this bipartisan support signals genuine cross-aisle interest in sustainable building materials made from hemp.
The bill requires the Minnesota Department of Labor and Industry to initiate a formal rulemaking process for hempcrete and straw bale construction. This means creating detailed standards that specify how hempcrete walls should be mixed, applied, and inspected, and how straw bale construction should be engineered for Minnesota's climate. These standards would become part of the State Building Code, giving builders, inspectors, lenders, and insurers the certainty they need to work with these materials confidently.
The bipartisan coalition behind HF2005 reflects how hempcrete and straw bale codes appeal to different constituencies for different reasons. Rural Republicans see a new market for agricultural crops like hemp and straw. Urban Democrats see a climate solution and a sustainable building option. Builders across the political spectrum want clearer rules. This convergence of interests makes HF2005 one of the more likely cannabis-adjacent bills to gain real traction in the 2026 session.
Key Dates
Introduced
Mar 6, 2025
Last Action
Mar 6, 2025
Committee Deadline
Mar/Apr 2026
Session Ends
May 2026
Key Provisions
- Requires the Department of Labor and Industry to develop State Building Code rules for hempcrete construction
- Requires building code rules for straw bale construction methods
- Mandates a formal rulemaking process with stakeholder input from builders, engineers, and the hemp industry
- Establishes clear standards so individual projects do not need costly alternative materials approvals
- House companion to SF2923 with bipartisan co-authorship
Who Wants What
Supporters Say
- +Minnesota farmers growing hemp need markets for hemp hurd - building codes for hempcrete would create real demand for a currently underused agricultural product
- +Clear building codes eliminate the expensive, time-consuming alternative materials process that currently makes hempcrete and straw bale projects impractical for most builders
- +These materials are proven, sustainable, and climate-friendly - Minnesota should not be behind other states and countries in recognizing them
Opponents Say
- -Minnesota's extreme climate (hot summers, subzero winters, freeze-thaw cycles) may present unique challenges for hempcrete that are not fully understood from warmer-climate experience
- -The Department of Labor and Industry has limited rulemaking capacity and other building code priorities in the queue
- -The conventional construction industry may resist code changes that could eventually divert market share to alternative materials
Impact Analysis
Consumers & Public
Homeowners interested in sustainable building would have a clear, code-compliant path to using hempcrete and straw bale. These materials offer excellent insulation and can reduce energy costs. Initial construction costs may be higher, but operating costs tend to be lower due to superior insulation performance.
Businesses
Hemp growers gain a valuable market for hemp hurd. Sustainable builders gain legitimacy and a streamlined permitting process. Hempcrete manufacturers would have reason to invest in Minnesota production capacity. The construction industry as a whole gains new material options.
Taxpayers
The rulemaking process requires a modest investment of state resources, but building codes for sustainable materials support the state's broader climate goals. Public buildings constructed with hempcrete could see long-term energy savings.
Legal & Enforcement
New building code provisions would require training for local inspectors. Mortgage lenders and insurance companies would gain the code-backed certainty they need to finance and insure hempcrete and straw bale structures. The formal rulemaking process includes public comment periods and legal review.
Historical Context
The push for hempcrete building codes is part of a national movement. The International Code Council approved hempcrete provisions for the International Residential Code appendix in 2022. States like Vermont, Texas, and North Carolina have seen hempcrete construction projects gain traction. In Europe, hempcrete has been used in France, the UK, and Ireland for over two decades with well-established standards. Straw bale construction has been code-approved in California, Nebraska, and Oregon for years. The bipartisan nature of this Minnesota bill reflects a broader pattern where sustainable building materials attract support from both agricultural and environmental constituencies.
Legislative Timeline
- House
Introduction and first reading, referred to Workforce, Labor, and Economic Development Finance and Policy
Latest statusWatch/listen to committee hearing
Likely next steps
- TBD
Committee hearing and amendment process
- TBD
Committee vote - move to full chamber
- TBD
Floor debate and chamber vote
- TBD
Conference committee (if both chambers pass different versions)
- TBD
Governor signature or veto
Sponsors
Katie Jones
Author - Democrat
Co-sponsors (4)
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Contents
Quick Facts
- Bill
- HF2005
- Status
- In Committee
- Chamber
- House
- Updated
- Mar 6, 2025
- Sponsors
- 5
- History
- 1 events