RESOURCES OUR COLLECTION OF USEFUL WALKTHROUGHS, CONVERSION TABLES AND INSIGHTFUL LINKS. Guide for Freight Transportation Metric Conversion Table Useful Links Air Cargo Association Smart Port Aviation Department International Trade Club KC Transportation Association National Association of Purchasing Managers International Air Cargo Association Transportation Club of Louisville National Defense Transportation Association US General Services Administration Supply Chain Security Food and Drug Administration Federal Motor Carriers Department of Transportation Transportation Security Administration Kentucky World Trade Center Louisville Chamber of Commerce Better Business Bureau United States Department of Agriculture