To request user technical support, contact:

IHSDM Help Line: (202) 493-3407
IHSDM Support Email: IHSDM.Support@dot.gov

For other information about IHSDM, contact:

Clayton Chen
Office of Safety Research and Development
Turner-Fairbank Highway Research Center
Federal Highway Administration
6300 Georgetown Pike
McLean, VA 22101
Clayton.Chen@dot.gov