Cannabis DUI Laws in Texas

Texas (TX)Effect-Based Standard

Prosecutors must prove the driver was actually impaired by cannabis. There is no specific THC blood level threshold.

View full Texas cannabis market profile →

DUI Law Details

THC Limit

None (effect-based)

legal threshold

Testing Method

Blood, field sobriety, DRE evaluation

authorized methods

Implied Consent

Yes

required for licensed drivers

First Offense Penalty

72 hours to 180 days in jail, fines up to $2,000, 90-day to 1-year license suspension

Test Refusal Penalty

180-day license suspension

Overview

Texas follows an effect-based approach to cannabis DUI enforcement under its DWI (Driving While Intoxicated) statute. There is no per se THC limit, and prosecutors must prove that a driver lost the normal use of mental or physical faculties due to cannabis use. Texas has a very limited medical cannabis program (Compassionate Use Program) and no recreational legalization.

Texas law enforcement uses field sobriety tests, DRE evaluations, and blood testing to establish cannabis impairment. Blood draws typically require a warrant unless consent is given or exigent circumstances exist.

Key Facts

•No per se THC limit — effect-based DWI standard
•Very limited medical cannabis (Compassionate Use Program)
•First offense carries 72 hours to 180 days in jail
•Blood draws typically require a warrant
•180-day license suspension for test refusal
•Cannabis possession adds separate charges

Frequently Asked Questions

Does Texas have a THC driving limit?+

No. Texas does not have a per se THC limit. Prosecutors must prove that cannabis caused the driver to lose normal use of mental or physical faculties.

Can police force a blood draw for cannabis DUI in Texas?+

Generally, police need a warrant for a blood draw in Texas. However, exceptions exist for accidents involving serious injury or death, and for certain repeat DWI offenders.

What are the penalties for a first cannabis DWI in Texas?+

A first offense carries 72 hours to 180 days in jail, fines up to $2,000, and a 90-day to 1-year license suspension.

Related State DUI Laws

Explore cannabis DUI laws in other states with similar regulations or neighboring jurisdictions.

Oklahoma

Zero Tolerance

Louisiana

Effect-Based Standard

New Mexico

Effect-Based Standard

Arkansas

Effect-Based Standard

Continue Exploring

Texas Cannabis Market

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. Texas 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 Texas state resources and consult with a qualified attorney for legal guidance. Cannabismarketcap does not guarantee the accuracy or completeness of any information presented.