PURPOSE: This rule prescribes standards for informational, directional and warning signs used as a result of rules of the Division of Transportation.

Editor’s Note: The secretary of state has determined that the publication of this rule in its entirety would be unduly cumbersome or expensive. The entire text of the material referenced has been filed with the secretary of state. This material may be found at the Office of the Secretary of State or at the headquarters of the agency and is available to any interested person at a cost established by state law.

1. (1) All crossing warning signs, track switch position indicators and close clearance-warning signs hereafter ordered by the division and those existing signs when hereafter replaced shall conform to the requirements of this rule.

   1. (A) The sign shall be covered with a reflectorized material to show the same shape and color by day or night.
   2. (B) The reflectorized material used shall have the reflective intensity value not less than the values specified in Table II of the Federal General Services Pamphlet LS 300- C, March 20, 1979 or the equivalent.
   3. (C) The signs shall be maintained in a reasonably clean condition and replaced when they have been moderately impaired by wear or damage.
2. (2) In those cases where the division determines that reflectorization will not perform effectively, the division, after a hearing, may require the use of appropriate illumination for the signs.
3. (3) It is recognized that technological progress may develop new and satisfactory or superior materials in the field of illumination and reflectorization. This rule does not exclude any new material that meets the standard requirements for color and legibility, by day or night.

AUTHORITY: section 622.027, RSMo 1986.* Original rule filed May 2, 1991, effective Dec. 9, 1991. *Original authority 1985.