If you or a loved one was hurt in a crash involving an impaired driver in Houston, understanding the difference between DWI and DUI in Texas can directly affect your injury claim. Texas draws a clear legal line: DWI (Driving While Intoxicated) applies to any person operating a vehicle while impaired by alcohol or drugs, while DUI (Driving Under the Influence) is reserved for drivers under 21 caught with any detectable amount of alcohol. This distinction influences negligence arguments, evidence preservation, and compensation you may pursue.
If you were injured by an impaired driver, Payne Law Firm is ready to help. Call 713-223-5100 or reach out to our team today.
How Texas Law Defines DWI vs. DUI
Texas treats DWI and DUI as two entirely separate statutory offenses. DWI offenses fall under Chapter 49 of the Texas Penal Code, while DUI for minors is governed by Texas Alcoholic Beverage Code § 106.041.
Under Texas Penal Code § 49.01, a person is "intoxicated" in two ways: lacking normal use of mental or physical faculties due to alcohol, drugs, or any combination, or having an alcohol concentration of 0.08% or more. This dual definition means a driver can be legally intoxicated even below 0.08% BAC if substances impaired their abilities.
For drivers under 21, Texas enforces a zero-tolerance standard. Any detectable amount of alcohol triggers a DUI charge at levels far below adult DWI thresholds. However, a minor whose BAC reaches 0.08% or who shows signs of impairment can also be charged with DWI under Texas Penal Code § 49.04.
💡 Pro Tip: If you were hit by an impaired driver, the criminal charge filed does not determine whether you can bring a civil injury claim. Your right to seek compensation is based on proving negligence, not criminal case outcomes.

Texas BAC Limits and the Legal Definition of Intoxication
Texas sets different blood alcohol concentration limits depending on the driver type. Understanding these thresholds clarifies how DWI charges connect to your accident claim.
| Driver Category | BAC Legal Limit |
|---|---|
| Drivers over 21 | 0.08% |
| Commercial drivers | 0.04% |
| Drivers under 21 | 0.00% (zero tolerance) |
You are legally intoxicated in Texas when your BAC reaches 0.08%, but you may be breaking the law as soon as drugs or alcohol affect your driving ability. Texas Penal Code § 49.01 defines "alcohol concentration" as grams of alcohol per 210 liters of breath, 100 milliliters of blood, or 67 milliliters of urine. These measurements become key evidence when building a DUI accident claim in Houston.
Intoxication under Texas law is not solely determined by BAC. A person can be considered intoxicated if they have lost normal use of their mental or physical faculties. Even below 0.08% BAC, drivers may face DWI charges if other evidence shows impairment.
💡 Pro Tip: Police reports, dashcam footage, witness statements, and field sobriety test results can all serve as evidence of impairment in both criminal prosecution and your civil injury case. Preserving this evidence early is essential.
DWI Penalties in Texas: What Victims Should Know
DWI penalties in Texas escalate with each subsequent offense and certain aggravating factors. While these are criminal penalties imposed on the impaired driver, they reflect how seriously the state treats the conduct that caused your injuries.
First-Offense DWI Penalties
A first-time DWI with a BAC below 0.15% is a Class B misdemeanor carrying up to 180 days in jail with a mandatory 72-hour minimum, fines up to $2,000, and license loss for up to a year. If the driver’s BAC was 0.15% or higher, the charge elevates to a Class A misdemeanor with up to one year in jail and fines up to $4,000.
Repeat Offenses and Additional Fines
Repeat DWI offenses carry harsher consequences. A second offense is a Class A misdemeanor with up to a $4,000 fine, one month to a year in jail, and license suspension for up to two years. A third offense is a third-degree felony, punishable by a $10,000 fine, two to 10 years in prison, and license loss for up to two years.
Texas imposes additional state fines: $3,000 for a first conviction within 36 months, $4,500 for subsequent convictions within 36 months, or $6,000 if BAC was 0.15% or more.
💡 Pro Tip: When an impaired driver faces felony-level DWI charges, this can strengthen negligence arguments in your civil claim. Evidence of repeated offenses or extreme BAC levels may support punitive damages.
When Does a Texas DWI Become a Felony?
A DWI crosses into felony territory under several specific circumstances. A third or subsequent DWI offense is a third-degree felony. Driving while intoxicated with a child passenger under 15 is a state jail felony constituting child endangerment, carrying up to a $10,000 fine, up to two years in jail, and an additional 180-day license suspension. When impaired driving results in serious bodily injury, the driver faces intoxication assault charges, a third-degree felony. When it results in death, the charge becomes intoxication manslaughter, a second-degree felony punishable by up to 20 years in prison.
For victims and their families, felony DWI charges often indicate the most devastating crashes. A criminal conviction is not required to recover compensation, but evidence from criminal proceedings can be highly valuable. Learn more about your rights if you were hit by a drunk driver.
Texas Implied Consent and Chemical Test Refusals
Texas has an implied consent law, meaning by driving on Texas roads, you have agreed to submit to chemical testing if lawfully arrested for DWI. Refusing a breath or blood test triggers automatic penalties: a first refusal results in a 180-day license suspension, while a second or subsequent refusal carries a two-year suspension.
From a victim’s perspective, a test refusal does not eliminate evidence of impairment. Officers may still document signs of intoxication through field sobriety tests, body camera footage, and witness observations. Law enforcement can often obtain a warrant for a blood draw even after a refusal. All of this evidence may be relevant to proving impairment in your personal injury claim.
💡 Pro Tip: Texas law treats administrative license suspensions (ALR hearings) separately from both the criminal DWI case and your civil injury lawsuit. Each process operates on its own timeline and standard of proof.
How a DWI Accident Affects Your Personal Injury Claim in Houston
When an impaired driver causes a crash, the victim’s path to compensation runs through civil court, not the criminal justice system. A Houston car accident attorney can help you build a negligence claim by establishing that the at-fault driver owed you a duty of care, breached that duty by driving while impaired, and directly caused injuries resulting in damages.
Evidence of intoxication can be powerful proof of negligence. BAC test results, police reports noting impairment, and criminal charges all help demonstrate the other driver breached the standard of care. In Texas, courts may consider punitive damages in drunk driving accident cases when the at-fault driver’s conduct was especially reckless.
Insurance companies representing impaired drivers often push back aggressively on claims. They may dispute injury severity, argue comparative fault, or pressure you into a low settlement before you understand the full extent of your damages. Acting quickly to preserve evidence and document injuries is essential.
How DWI Charges Affect Victims Differently Than Defendants
As an accident victim, the DWI or DUI charge filed against the other driver is only one piece of a larger picture. Your civil case focuses on proving fault, causation, and the full scope of your losses. Whether the impaired driver is ultimately convicted, pleads to a lesser charge, or has the case dismissed does not automatically determine your injury claim’s outcome.
The burden of proof in a civil case is lower than in a criminal case. Criminal courts require proof beyond a reasonable doubt, while civil courts require a preponderance of the evidence. This means even when criminal charges are reduced or dropped, you may still have a strong personal injury case based on available evidence of impaired driving in Texas.
💡 Pro Tip: Do not assume a dismissed criminal case means you have no civil claim. The standards are different, and a DWI accident attorney experienced in Houston injury cases can evaluate your claim’s strength independently.
Frequently Asked Questions
1. Can I file a personal injury lawsuit even if the impaired driver was not convicted of DWI?
Yes. Your civil claim operates independently from the criminal case. Civil courts use a lower standard of proof, so evidence of impairment may establish negligence even without a criminal conviction.
2. What is the difference between DWI and DUI in Texas?
DWI applies to any driver under Texas Penal Code Chapter 49, while DUI applies to minors (under 21) under Texas Alcoholic Beverage Code § 106.041. DWI requires proof of intoxication at 0.08% BAC or loss of normal faculties. DUI for minors is triggered by any detectable alcohol under zero-tolerance policy.
3. How does a driver’s DWI charge affect my compensation as the victim?
A DWI charge can serve as strong evidence of negligence in your civil case. It may support claims for both compensatory and punitive damages. However, compensation depends on the extent of injuries, medical expenses, lost income, and other case-specific factors.
4. What should I do immediately after being hit by an impaired driver in Houston?
Seek medical attention first, then preserve evidence. Call 911, request a police report, photograph the scene, and collect witness contact information. Avoid giving recorded statements to the other driver’s insurance company before consulting an attorney.
5. Does Texas have a deadline for filing a personal injury claim after a DWI accident?
Texas generally imposes a two-year statute of limitations on personal injury claims, and missing that deadline can bar your case entirely. Certain exceptions may apply in limited circumstances, but courts interpret these narrowly. Consulting with an attorney promptly helps ensure you do not lose your right to file.
Protecting Your Rights After a DWI-Related Crash in Houston
Understanding the difference between DWI and DUI in Texas is an important first step, but knowing your rights as a victim after an impaired driving crash is what truly matters. Texas law provides a framework for holding intoxicated drivers accountable through both criminal penalties and civil liability. Your injuries, medical bills, and lost wages deserve serious attention, regardless of criminal case outcomes.
The team at Payne Law Firm is committed to standing with accident victims across Houston and Harris County. If you or a family member was hurt by an impaired driver, call 713-223-5100 or contact us today to discuss your case.

