Cannabis DUI Laws in Missouri
Prosecutors must prove the driver was actually impaired by cannabis. There is no specific THC blood level threshold.
DUI Law Details
Up to 6 months in jail, fines up to $1,000, 90-day license suspension
1-year license revocation
Overview
Missouri follows an effect-based approach to cannabis DUI enforcement. The state legalized recreational cannabis in 2022 through a ballot initiative but has not established a per se THC driving limit. Prosecutors must prove actual impairment.
Missouri uses field sobriety tests, DRE evaluations, and chemical testing to establish cannabis impairment. The state has been expanding its DRE program since legalization to better identify impaired drivers.
Key Facts
- •No per se THC limit — effect-based standard
- •Recreational cannabis legalized in 2022
- •First offense carries up to 6 months in jail
- •1-year license revocation for test refusal
- •Expanding DRE program since legalization
Frequently Asked Questions
Does Missouri have a THC driving limit?+
What are the penalties for a first cannabis DUI in Missouri?+
Can I drive after using legal cannabis in Missouri?+
Related State DUI Laws
Explore cannabis DUI laws in other states with similar regulations or neighboring jurisdictions.
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Disclaimer: The information on this page is provided for educational and informational purposes only and does not constitute legal advice. Cannabis remains illegal under US federal law. Missouri DUI laws and regulations are subject to change and may vary by local jurisdiction. THC limits, penalties, and testing methods described here are based on publicly available information and may not reflect the most current regulations. Always verify current laws with official Missouri state resources and consult with a qualified attorney for legal guidance. Cannabismarketcap does not guarantee the accuracy or completeness of any information presented.