Standards Testing Laboratories (STL) provides independent analysis for tires.
Standards Testing Laboratories (STL) provides independent analysis for tires, wheels and related automotive composings Its four divisions provide the rubber and automotive industries with lab, static and physical testing; flotilla testing; test machines; specialized photographic and video services; and consulting services. STL designs and builds machinery to convenient testing requirements of its global customer base. The STL facilities and operations are ISO/IEC accredited and approved by means of the U.S. Department of Transportation and the National Highway Safety Administration.