Other entities that have responsibilities for the transportation system include federally recognized tribal governments; metropolitan and regional planning organizations, sometimes known as councils of governments; counties, townships and municipalities; regional or county toll authorities; and local transit agencies. Texas also has "regional mobility authorities" that are political subdivisions formed by one or more counties to finance, acquire, design, construct, operate, maintain, expand or extend transportation projects. Local dollars account for close to 30 percent of highway funding and more than 60 percent of transit funding in the United States.7