Commercial trucks are a constant presence on San Antonio’s highways, from I-10 and I-35 to Loop 410. When one of those trucks is involved in a crash, the consequences can be devastating. But beyond the physical damage, these collisions often raise a critical legal question: did a regulatory violation cause or contribute to the wreck?
Understanding how Texas commercial truck regulations work and what happens when trucking companies or drivers break those rules can make a significant difference in how a personal injury claim unfolds.
Who Regulates Commercial Trucks in Texas?
In Texas, commercial trucks are regulated by both federal and state agencies, including the FMCSA and TxDMV, depending on the route and cargo.
Commercial trucking in Texas falls under a layered regulatory framework. At the federal level, the Federal Motor Carrier Safety Administration (FMCSA) sets baseline rules that apply to most interstate commercial vehicles. These rules cover everything from driver qualifications to vehicle maintenance requirements. You can find the full federal regulations at fmcsa.dot.gov.
At the state level, the Texas Department of Motor Vehicles (TxDMV) and the Texas Department of Public Safety (TxDPS) oversee licensing, registration, and safety enforcement for commercial vehicles operating within the state. While not all Texas trucks are subject to full federal FMCSA rules, Texas adopts and enforces Federal Motor Carrier Safety Regulations (FMCSRs) standards or state-specific adaptations for intrastate carriers through the Texas Transportation Code, Title 7.
Key Texas Commercial Truck Regulations Drivers and Carriers Must Follow
Texas truck regulations address weight limits, hours of service, driver qualifications, vehicle inspections, and cargo securement, among other requirements.
Several categories of rules govern how commercial trucks must operate on Texas roads:
- Hours of Service (HOS): Under 49 CFR Part 395, drivers of property-carrying vehicles may not drive more than 11 hours after 10 consecutive hours off duty, within a 14-hour driving window, and following a required 30-minute break after 8 cumulative hours of driving. Fatigue is a major contributor to serious truck crashes.
- Weight and Size Limits: Texas law limits single-axle weight to 20,000 pounds and tandem-axle weight to 34,000 pounds, with an 80,000-pound gross vehicle weight limit on most highways, per Tex. Transp. Code § 621.101.
- Driver Qualifications: Drivers must hold a valid Commercial Driver’s License (CDL) and meet physical and medical standards set by 49 CFR Part 391.
- Vehicle Inspections: Carriers must conduct pre-trip inspections and maintain records. Roadside inspections are also performed by TxDPS Motor Carrier Division enforcement officers.
- Cargo Securement: Federal rules under 49 CFR Part 393 require that all cargo be properly secured to prevent shifting or spillage during transport.
When any of these rules are violated, the consequences extend beyond a citation. They can form the foundation of a negligence claim.
How Regulatory Violations Affect Liability in a Truck Crash
When a trucker or carrier violates FMCSA or Texas regulations, that violation can serve as evidence of negligence and directly impact liability in a personal injury case.
Texas follows a negligence standard in personal injury cases. To establish liability, an injured party generally must show that the defendant owed a duty of care, breached that duty, and caused harm as a result. Regulatory violations can serve as direct evidence of a breach.
Under the legal doctrine of negligence per se, a violation of a statute or regulation designed to protect a specific class of persons, including the plaintiff, can automatically establish the breach element of a negligence claim, provided the violation approximately caused the injury. Texas courts have recognized this doctrine in trucking cases where drivers or carriers failed to comply with the FMCSRs or the Texas Transportation Code.
For example, if a driver exceeded the allowable hours of service and fell asleep behind the wheel, that HOS violation could be used as evidence that the carrier was negligent in allowing the driver to operate the truck. If a vehicle failed a required inspection but continued operating, that failure may support a claim against the trucking company.
Why the Trucking Company’s Role Matters
Trucking companies can face direct liability for their own negligence in hiring, training, supervising, or retaining drivers, separate from the driver’s own fault.
In many truck crash cases, the trucking company carries significant legal exposure. Carriers have an independent duty to:
- Conduct proper background checks on drivers.
- Ensure drivers hold valid CDLs and meet medical requirements.
- Maintain logs and records as required by federal regulations.
- Enforce hours of service policies.
When companies cut corners, skip inspections, or pressure drivers to meet unrealistic schedules, they create dangerous conditions on Texas highways, and they can be held accountable for the resulting harm.
Evidence like electronic logging device (ELD) data, driver qualification files, maintenance records, and dispatch communications often plays a central role in building a truck crash claim. This evidence can disappear quickly if not preserved through a formal legal hold.
What San Antonio Truck Crash Victims Should Know
Acting quickly after a San Antonio truck crash helps preserve critical evidence, including ELD data and inspection records, that may support your claim.
San Antonio sits at the intersection of major freight corridors. Crashes involving 18-wheelers and commercial vehicles happen regularly on U.S. 281, I-410, and along the stretch of I-35 running through Bexar County. If you were injured in one of these collisions, the steps you take in the days following the crash can directly affect your ability to pursue a claim.
Preserving evidence, identifying which regulations apply, and understanding who may share liability, whether the driver, the carrier, a maintenance contractor, or a cargo loader, requires a thorough and prompt investigation.
Work Directly With Barry Deacon Law on Your Truck Crash Case
At Barry Deacon Law, your case receives personal attention from start to finish. As a solo practitioner, Barry Deacon personally handles every case, which means you work directly with your attorney throughout the entire process, not a rotating team of assistants.
If you or someone you love was injured in a commercial truck crash in San Antonio or the surrounding area, reach out to discuss your situation. English-speaking clients can call 210-985-8398 or contact us to get started.
