Safety Eligibility Letter CC-12L
April 11, 2003
HSA-10/CC12L
Hayes E. Ross, Jr., P.E., Ph. D.
Professor Emeritus and Research Engineer
Texas Transportation Institute
3135 TAMU
College Station, TX 77843-3135
Dear Dr. Ross:
April 11, 2003
HSA-10/CC12L
Hayes E. Ross, Jr., P.E., Ph. D.
Professor Emeritus and Research Engineer
Texas Transportation Institute
3135 TAMU
College Station, TX 77843-3135
Dear Dr. Ross:
U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Ave. S.E.
Washington, D.C. 20590
March 15, 2010
U.S. Department of Transportation
Federal Highway Administration