Safety Eligibility Letter WZ-139

January 24, 2003

Refer to: HSA-10/WZ-139

Mr. Michael Denman
The Roadmarker Company
835 Terry Francois Boulevard
San Francisco, California 94107

Dear Mr. Denman:

Safety Eligibility Letter WZ-140

February 28, 2003

Refer to: HSA-10/WZ – 140

Mr. Greg Hannah
Impact Recovery Systems
246 West Josephine Street
P.O. Box 12637
San Antonio, TX  78212

Dear Mr. Hannah:

Safety Eligibility Letter WZ-140A

Safety Eligibility Letter WZ-141

December 30, 2003

Refer to: HSA-10/WZ-141
Revised

Mr. Grant Dicke
Dicke Tool/INCOM, Incorporated
1201 Warren Avenue
Downers Grove, Illinois 60515

Dear Mr. Dicke:

Safety Eligibility Letter WZ-141A

Safety Eligibility Letter WZ-142

February 27, 2003

Refer to: HSA-10/WZ-142

Mr. Matt Reeder
RTM, LLC
PO Box 4205
Ventura, California  93007

Dear Mr. Reeder:

Safety Eligibility Letter WZ-144

Refer to: HSA-10/WZ-144

Mr. Tom Rockafellow
High-Way Safety Incorporated
13310 5th Street
Chino, California 91710

Dear Mr. Rockafellow:

Safety Eligibility Letter WZ-145

March 4, 2003

Refer to: HSA-10/WZ-145

Mr. William Jamieson
PMG Ltd.
P.O. Box 247
Novelty, Ohio  44072

Dear Mr. Jamieson:

Safety Eligibility Letter WZ-146

March 25, 2003

Refer to: HSA-10/WZ-146

Mr. Henry Ross
United Rentals Highway Technologies
880 North Addison Road
P.O. Box 7050
Villa Park, Illinois  60181

Dear Mr. Ross:

Safety Eligibility Letter WZ-147

Refer to: HSA-10/WZ-147

Mr. Geoff Grzywinski
Reflexite Americas
315 South Street
New Britain, Connecticut  06051

Dear Mr. Grzywinski