Federal Highway Administration
400 Seventh Street, SW
Washington, DC 20590

Refer to: HOTO-1

Mr. Gary L. Hoffman
Chief Engineer for Highway Administration
Commonwealth of Pennsylvania Department of Transportation
Bureau of Highway Safety & Traffic Engineering
P.O. Box 2047
Harrisburg, PA 17105-2057

Dear Mr. Hoffman:

Thank you for your April 4 letter requesting experimentation with the "SLOW DOWN MY DADDY (MOMMY) WORKS HERE" signs.

Your evaluation plan has been reviewed and approved.

For future reference purposes, we have assigned your request the following official experimentation number and title: 6-179(E) - SLOW DOWN MY DADDY (MOMMY) WORKS HERE.

We appreciate the effort that you and your staff put in developing this evaluation plan and look forward to reviewing your first semi-annual progress report this fall. If you have any question during your experimentation, please contact Mr. Charles Sears at 202-366-1555.

Sincerely yours,

Shelley J. Row, P.E.
Director, Office of Transportation
Operations