In addition to the federal requirements, Texas has its own CDL regulations. According to the Texas Department of Public Safety (DPS), a CDL is required for any vehicle combination with a GVWR of 26,000 or more pounds, or any vehicle combination with a GVWR of less than 26,000 pounds that transports hazardous materials.
Therefore, if you are operating a vehicle combination with a GVWR of 26,000 pounds or more, or transporting hazardous materials across state lines in Texas, you must obtain a CDL, regardless of whether the GVWR is under 26,000 pounds.
It's important to note that the CDL requirements can vary depending on the specific vehicle and load being transported, so it's always best to consult with the Texas DPS or the federal FMCSA for the most up-to-date information.