American Association of State Highway and Transportation Officials

Though AASHTO is not a government body, it possesses quasi-governmental powers in the sense that the organizations that supply its members customarily obey most AASHTO decisions. 

Besides its publications, AASHTO performs or cooperates in research projects. 
 Other websites 
 Official AASHTO site
 AASHTO Daily Transportation News Update 
 AASHTO Special Committee on U.S. Route Numbering

Category:Transport in the United States