Interpretation ID: aiam1137
Vice President
Grote Manufacturing Company
State Route 7
Post Office Box 766
Madison
Indiana 47250;
Dear Mr. Scully: This is in response to your letter of May 3, 1973, which request written confirmation that Standard 125, Warning devices, 49 CFR 571.125, requires the lower edge of the reflective surface of the equilateral triangle to be not less that 1 inch above the ground.; Your interpretation of the is correct. The device consists of a equilateral triangle and a support structure. S5.2.3 requires the outer border of the triangular portion to be red reflex reflective material and the inner border of the triangular portion to be orange fluorescent material. Therefore only that portion of the device within these borders is the 'equilateral triangle' and that portion outside these borders is the support structure.; The support structure must of course touch the ground at some point and the standard permits a support design which includes a horizontal base member less than 1 inch from the ground. It is the reflective surface within the borders that must be not less than 1 inch from the ground.; Sincerely, Lawrence R. Schneider, Chief Counsel