307.127. 1. No person shall operate on any public highway of thisstate any slow-moving vehicle or equipment after sunset to one-half hourbefore sunrise, any animal-drawn vehicle, or any other machinery, designedfor use or normally operated at speeds less than twenty-five miles perhour, including all road construction or maintenance machinery except whenengaged in actual construction or maintenance work either guarded by aflagman or clearly visible warning signs, which normally travels or isnormally used at a speed of less than twenty-five miles per hour unlessthere is displayed on the rear thereof an emblem as described in, anddisplayed as provided in subsection 2 in this section. The requirement ofsuch emblem shall be in addition to any lighting devices required bysection 307.115.
2. The emblem required by subsection 1 of this section shall be ofsubstantial construction, and shall be a basedown equilateral triangle offluorescent yellow-orange film or equivalent quality paint with a base ofnot less than fourteen inches and an altitude of not less than twelveinches. Such triangle shall be bordered with reflective red strips havinga minimum width of one and three-fourths inches, with the vertices of theoverall triangle truncated such that the remaining altitude shall be aminimum of fourteen inches. Such emblem shall be mounted on the rear ofsuch vehicle near the horizontal geometric center of the rearmost vehicleat a height of not less than four feet above the roadway, and shall bemaintained in a clean, reflective condition. The provisions of thissection shall not apply to any vehicle or equipment being operated on agravel or dirt-surfaced public highway.
3. Any person who shall violate the provisions of this section shallbe guilty of an infraction.
4. No emblem shall be required on machinery or equipment pulled orattached to a farm tractor providing the machinery or equipment does notextend more than twelve feet to the rear of the tractor and permits a clearview of the emblem on the tractor by vehicles approaching from the rear.
5. Any person operating an animal-drawn vehicle on any public highwayof this state may, in lieu of displaying the emblem required by subsections1 and 2 of this section, equip the animal-drawn vehicle with reflectivematerial complying with rules and regulations promulgated by the directorof the department of public safety. The reflective material shall bevisible from a distance of not less than five hundred feet to the rear whenilluminated by the lower beams of vehicle headlights. Any rule or portionof a rule, as that term is defined in section 536.010, RSMo, that iscreated under the authority delegated in this section shall becomeeffective only if it complies with and is subject to all of the provisionsof chapter 536, RSMo, and, if applicable, section 536.028, RSMo. Thissection and chapter 536, RSMo, are nonseverable and if any of the powersvested with the general assembly pursuant to chapter 536, RSMo, to review,to delay the effective date, or to disapprove and annul a rule aresubsequently held unconstitutional, then the grant of rulemaking authorityand any rule proposed or adopted after August 28, 2004, shall be invalidand void.
(L. 1971 S.B. 99 ยง 1, A.L. 1996 H.B. 1047, A.L. 2004 S.B. 956)