Your complete guide to Texas driving laws, traffic violations, and penalties - from speed limits to DWI consequences.
Updated for 2026 · Instant PDF download
Texas has some of the highest speed limits in the country, with select highways allowing up to 85 mph.
30 mph in residential zones unless otherwise posted.
Most highways: 70 mph daytime. SH 130 toll road: 85 mph - highest in the US.
65 mph nighttime limit on most highways. Some rural roads drop to 60 mph.
20 mph in school zones when flashing lights are active.
Texas uses the term DWI (Driving While Intoxicated) and enforces severe penalties including mandatory jail time for repeat offenses.
0.08% for adults, 0.04% for commercial drivers. Any detectable amount for under 21.
3–180 days in jail, up to $2,000 fine, 90-day to 1-year license suspension.
Open alcohol containers are illegal in the passenger area of any vehicle. Violation: up to $500 fine.
Administrative License Revocation: refuse a breathalyzer and face automatic 180-day suspension.
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Important legal factors that affect how this section applies in your state.
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Texas has the highest posted speed limit in the United States at 85 mph on State Highway 130, a toll road between Austin and San Antonio.
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Everything you need to know about our Texas driving laws guide
Yes! Our Texas Driving Laws Guide reflects all 2026 changes, including updated speed regulations on Texas highways, new distracted driving penalties, and revised commercial vehicle rules.
The guide is delivered as a professionally designed PDF that you can read on any device - phone, tablet, or computer. You can also print it for offline reference.
Absolutely. We offer a full refund within 30 days of purchase, no questions asked. We're confident you'll find the guide valuable.
Texas has some of the highest speed limits in the nation (up to 85 mph), unique right-of-way rules at unmarked intersections, and specific regulations for large vehicles. Our guide covers all of these Texas-specific nuances.
Yes. When we publish updates to reflect new Texas driving laws, you'll receive the updated guide at no extra charge via email.
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