Gain essential insights into DOT oversize and overweight permits in Laredo. Learn the process, requirements and tips for hassle free transportation compliance. In the transportation industry, navigation in regard to regulatory requirements is the most important thing in running an operation smoothly. No doubt, one of the biggest pieces of compliance to work through is getting proper permitting with the DOT (The Department of Transportation). Whether you are transporting wide loads, oversized freight, or overweight cargo, taking proper permitting can keep you compliant within the letter of the law and allow operations to efficiently and effectively run.