Texas CDL Special Cargo Requirements

Compare the vehicle and loaded dimensions, axle and gross weights, cargo type, and route with Texas and federal limits. A legal load on one vehicle or route may require a permit on another. Measure and weigh rather than relying on a shipper's description.

Movement above ordinary Texas size or weight limits generally requires authorization through the Texas Department of Motor Vehicles permit system and may involve specified routes, travel times, signs, flags, lights, pilot vehicles, or escorts. Permit conditions are part of the legal movement and must be carried and followed.

Cargo extending beyond the vehicle can require flags during daylight and lamps or reflectors during darkness or reduced visibility. The required marking depends on the direction and amount of projection and current Texas law. Secure the projection against movement and consider turning sweep and clearance.

Use tiedowns, blocking, bracing, dunnage, and vehicle structures rated for the load. Inspect before departure, after the initial part of the trip, and at required intervals or duty changes. Recheck after hard braking, sharp turns, rough roads, or any sign of movement.

Confirm bridge and pavement limits, construction restrictions, railroad crossings, overhead clearance, turning space, fuel stops, and safe parking before departure. Permit routes must be followed. A navigation app does not replace the permit, posted restrictions, or a commercial route survey.

The carrier, shipper, and permit office may provide information, but the driver must still inspect the load, carry required documents, obey restrictions, and stop when conditions make movement unsafe. Verify current Texas permit terms because limits and procedures can change.