Associations

National Association of Trailer Manufacturers (NATM): www.natm.com

National Truck Equipment Association (NTEA): www.ntea.com

Society of Automotive Engineers (SAE): www.sae.org

National Association of Manufacturers (NAM): www.nam.com

International Trade

International Trade Administration (ITA): www.ita.doc.gov/
**ITA is a part of the Dept. of Commerce and offers links to a variety of sites
  and resources related to international trade.

Regulatory

Federal Highway Administration (FHWA): www.fhwa.dot.gov/

National Traffic Safety Administration (NHTSA): www.nhtsa.dot.gov/

US Department of Transportation (DOT): www.dot.gov/

Code of Federal Regulations Online (CFR): www.access.gpo.gov/cfr/cfr-retrieve.html#page1

GPO Access: www.access.gpo.gov/su_docs/
**search from over 70 government databases