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The Legal Consequences of Boating Under the Influence (BUI)

Gardner Law Firm April 30, 2025

Boating is a popular recreational activity in Texas, with its numerous lakes, rivers, and access to the Gulf of Mexico. However, operating a watercraft while under the influence of alcohol or drugs presents significant risks, such as personal injury, not only to the operator but also to passengers and others on the water. 

Texas law strictly prohibits Boating Under the Influence (BUI), and the state imposes severe penalties on those found guilty of this offense. Let’s explore the legal consequences of BUI in Texas, the applicable laws, enforcement procedures, and potential defenses. 

Texas BUI Laws

In Texas, Boating Under the Influence is governed primarily by the Texas Parks and Wildlife Code, particularly Section 31.121, which makes it illegal for any person to operate a watercraft while intoxicated. A person is considered intoxicated if:

  • They have a blood alcohol concentration (BAC) of 0.08% or higher, or

  • They lack the normal use of mental or physical faculties due to alcohol, drugs, or a combination of both.

The law applies to all types of watercraft, including motorboats, sailboats, jet skis, and even non-motorized vessels such as kayaks and canoes. 

Unlike driving under the influence (DUI) laws, which apply strictly to motor vehicles, Texas BUI laws encompass a broader range of vessels, recognizing that impairment can be just as dangerous on the water as on land, as well as lead to personal injury.

Many individuals assume that because they aren't on a public roadway, the legal standards for intoxication differ; however, this is a misconception. Law enforcement officers have the same authority to enforce BUI laws on Texas waterways as they do for DUI offenses on roadways.

Additionally, the presence of alcohol on boats is more common than in vehicles, as boating often involves leisure activities such as fishing, tubing, and social gatherings. The movement of a boat on water, combined with sun exposure, wind, and dehydration, can amplify the effects of alcohol, making an individual impaired more quickly than they would be on land.

Furthermore, Texas has an implied consent law for boaters, meaning that individuals who operate a vessel on public waters automatically consent to alcohol and drug testing if suspected of intoxication.

Refusing to submit to a breathalyzer or blood test can result in automatic suspension of boating and even driving privileges, in addition to other legal consequences. Understanding these regulations is crucial for anyone who enjoys boating in Texas, as a BUI conviction carries both immediate and long-term penalties.

Penalties for BUI in Texas

The consequences of BUI in Texas vary depending on the circumstances, such as any involvement of personal injury and whether the offender has prior convictions. Below is an overview of the penalties associated with different levels of BUI offenses:

First Offense

  • Class B misdemeanor

  • Fine up to $2,000

  • Jail time of up to 180 days

  • Possible suspension of boating privileges

Second Offense

  • Class A misdemeanor

  • Fine up to $4,000

  • Jail sentence of up to one year

  • Increased suspension of boating privileges

Third Offense and Beyond

  • Third-degree felony

  • Fine up to $10,000

  • Prison sentence ranging from 2 to 10 years

  • Permanent criminal record with long-term consequences

Now that you’re aware of the consequences for BUIs in Texas, we can go over enhanced penalties for Aggravating Factors.

Enhanced Penalties for Aggravating Factors

Certain aggravating circumstances can lead to harsher penalties for a BUI conviction, including:

BUI with a Child Passenger

If an individual operates a boat under the influence with a child under 15 years old on board, they may face additional charges of child endangerment, resulting in fines up to $10,000 and potential jail time of up to two years. 

Additionally, a conviction for child endangerment could lead to long-term consequences, such as loss of custody rights or required participation in parenting and substance abuse programs. Courts often view BUI with a child passenger as an extreme form of negligence, which can lead to more aggressive prosecution and sentencing. 

Child Protective Services may also become involved in cases where parental negligence is suspected, which can further complicate legal matters for the accused.

BUI Causing Injury or Death

If a person’s intoxication leads to a boating accident that causes serious personal injury or wrongful death, they could be charged with intoxication assault, a third-degree felony. If the accident results in a fatality, the charge escalates to intoxication manslaughter, a second-degree felony carrying up to 20 years in prison. 

These charges carry substantial prison time and may also result in a personal injury lawsuit from the victims or their families. In some cases, courts may impose additional restitution payments to compensate for medical expenses, funeral costs, or lost wages resulting from the accident. 

Additionally, if multiple individuals are injured or killed due to intoxicated boating, each personal injury or fatality can result in separate criminal charges, further increasing potential penalties.

If you or someone you know has experienced a personal injury related to BUI, contact us at Gardner Law Firm for more information on how we can help.

Repeat Offenders 

Individuals with multiple BUI convictions face enhanced penalties, including longer jail terms and steeper fines. Texas courts treat repeat offenses seriously, often imposing stricter probation conditions, such as mandatory alcohol treatment programs, regular check-ins with probation officers, or electronic monitoring.

Additionally, repeat offenders may be permanently prohibited from operating any watercraft in Texas, significantly impacting their recreational and professional boating activities. A history of prior DUI convictions on land may also be considered, as courts often view repeat alcohol-related offenses as evidence of an ongoing substance abuse problem.

Operating a Commercial Vessel Under the Influence

If a person is found guilty of BUI while operating a commercial vessel, such as a fishing boat or tour boat, they may face additional penalties. Commercial operators are held to a higher standard of responsibility due to the increased risk to passengers and the public.

A conviction may lead to the revocation of professional licenses, termination of employment, and civil liability for any damages or injuries caused. Employers in the maritime industry take BUI offenses seriously, and a conviction may result in difficulty obtaining future employment in commercial boating or shipping industries.

Excessively High BAC Levels 

While the legal limit for intoxication is 0.08%, individuals with a BAC significantly above this threshold (such as 0.15% or higher) may face additional charges or sentence enhancements. Courts may consider high BAC levels as evidence of gross negligence, leading to increased fines, mandatory alcohol education programs, and extended jail time. 

In cases where extreme intoxication is evident, judges may impose the maximum allowable penalties to deter repeat offenses and emphasize the dangers of severe impairment while operating a boat.

These aggravating factors highlight the seriousness of BUI charges and emphasize the importance of responsible boating practices. To avoid severe legal consequences, boaters should prioritize safety, designate a sober operator, and be aware of the risks associated with alcohol consumption on the water.

Enforcement and Testing Procedures

Texas game wardens, sheriff’s deputies, and other law enforcement officials actively patrol waterways to detect and deter impaired boating. Officers may stop boats for safety checks and, during these interactions, may observe signs of impairment such as slurred speech, erratic operation, or the smell of alcohol.

If an officer suspects intoxication, they can administer field sobriety tests adapted for a marine environment. These may include:

  • Horizontal Gaze Nystagmus Test (HGN): Checking for involuntary eye movement when following an object.

  • Finger-to-nose test: Assessing balance and coordination.

  • Alphabet recitation or counting backwards: Evaluating cognitive function.

  • Walk-and-turn test: Though challenging on a boat, this may be used onshore to assess balance and divided attention skills.

Additionally, officers can request a breathalyzer or blood test to measure BAC. Texas has an implied consent law, meaning that refusing a chemical test can result in automatic suspension of boating and driving privileges. Officers may also use portable breath testing devices as a preliminary screening tool before administering official chemical tests. 

If a suspect refuses testing, they may face immediate consequences, including arrest and potential administrative penalties. Law enforcement agencies frequently conduct BUI checkpoints during peak boating seasons and holiday weekends when alcohol consumption is more prevalent. 

These checkpoints serve as both a deterrent and an enforcement tool, helping to reduce alcohol-related boating incidents. Boaters should always be aware that even small amounts of alcohol can impair judgment and coordination, increasing the risk of accidents and legal repercussions.

Legal Defenses Against BUI Charges

Individuals charged with BUI have legal options to challenge the allegations. Some common defenses include:

  • Lack of probable cause: If law enforcement lacked a legitimate reason to stop the boat or administer sobriety tests, evidence may be challenged in court. Officers must have reasonable suspicion to initiate a stop, and any improper procedure could lead to the suppression of evidence.

  • Inaccurate BAC testing: Breathalyzers and blood tests can sometimes produce inaccurate results due to improper calibration, human error, or medical conditions affecting BAC levels. Factors such as acid reflux, diabetes, and certain medications can also cause falsely elevated BAC readings.

  • Non-alcohol-related impairment: Fatigue, sun exposure, dehydration, or medical conditions can mimic signs of intoxication. Motion sickness and prolonged exposure to the sun can lead to symptoms that resemble alcohol impairment, such as dizziness or slurred speech.

  • Violation of legal rights: If officers failed to follow proper procedures, including failing to read Miranda rights or conducting an illegal search, the charges could be contested. Defense attorneys often scrutinize law enforcement conduct to determine if constitutional rights were violated.

  • Field sobriety test limitations: Marine field sobriety tests can be unreliable due to the unstable environment of a boat. Even a sober individual may struggle with balance tests due to the motion of the water, making these tests a weak form of evidence in court.

A strong defense strategy can significantly impact the outcome of a BUI case, potentially leading to reduced charges or case dismissal. Anyone facing BUI allegations should consult with an experienced attorney to explore their legal options and protect their rights.

The Long-Term Impact of a BUI Conviction

A BUI conviction carries consequences beyond fines and jail time. Some of the long-term repercussions include:

Criminal Record

A conviction remains on an individual’s record, potentially affecting employment, housing, and educational opportunities. Many employers conduct background checks, and a criminal record can make it difficult to secure a job, particularly in industries that require professional licensing or security clearances. 

Additionally, a conviction may impact one's ability to rent or buy property, as landlords and lenders often consider criminal history when making decisions.

Increased Insurance Rates 

Insurance companies may increase premiums or cancel coverage for individuals with a BUI conviction. Boating insurance policies may become more expensive or difficult to obtain, and some companies may refuse to renew coverage altogether. Auto insurance rates may also be affected, as many insurers view BUI and DUI offenses as indicators of high-risk behavior.

Suspension of Boating and Driving Privileges 

Texas law allows authorities to suspend boating and even driving privileges for BUI convictions. The suspension period can increase with each subsequent offense, potentially making it difficult for individuals to commute to work or engage in recreational activities that involve boating.

In some cases, reinstating these privileges may require completing mandatory alcohol education programs or demonstrating evidence of sobriety.

Social and Professional Consequences 

Having a criminal record can impact personal relationships and professional reputations. Friends, family members, and colleagues may view the individual differently, leading to strained relationships.

A conviction can also affect one’s reputation within the community and professional network, particularly for those in leadership roles or positions of public trust. Additionally, individuals required to report their convictions to professional licensing boards may face disciplinary action, further limiting career prospects.

Preventing BUI in Texas

To avoid the legal and personal consequences of BUI, boaters should take proactive measures, such as:

  • Designating a sober operator: Similar to a designated driver on the road, having a sober individual operate the boat reduces risks.

  • Understanding the effects of alcohol on boating: Alcohol affects balance and coordination more significantly on the water due to factors like wave motion and sun exposure.

  • Utilizing boating safety courses: Texas offers boating safety education programs that emphasize the dangers of impaired boating.

  • Carrying non-alcoholic beverages: Staying hydrated with water or sports drinks can help prevent dehydration and fatigue.

Recognizing these personal consequences of BUI can help deter you from making a decision that can impact your life and harm others.

Contact Us Today

Texas enforces strict penalties to deter impaired boating and protect public safety on waterways. If you or a loved one has experienced an injury related to BUI, seeking legal counsel is essential.

At Gardner Law Firm, we're dedicated to serving injury victims and their families throughout Rockport, Texas. Contact us today for more information.