307.125. 1. Any person who shall place or drive or cause to beplaced or driven upon or along any state or supplementary state highway ofthis state any animal-driven vehicle whatsoever, whether in motion or atrest, shall after sunset to one-half hour before sunrise have attached toevery such vehicle at the rear thereof a red taillight or a red reflectingdevice of not less than three inches in diameter of effective area or itsequivalent in area. When such device shall consist of reflecting buttonsthere shall be no less than seven of such buttons covering an area equal toa circle with a three-inch diameter. The total subtended effective angleof reflection of every such device shall be no less than sixty degrees andthe spread and efficiency of the reflected light shall be sufficient forthe reflected light to be visible to the driver of any motor vehicleapproaching such animal-drawn vehicle from the rear of a distance of notless than five hundred feet.
2. In addition, any person who operates any such animal-drivenvehicle during the hours between sunset and one-half hour before sunriseshall have at least one light flashing at all times the vehicle is on anyhighway of this state. Such light or lights shall be amber in the frontand red in the back and shall be placed on the left side of the vehicle ata height of no more than six feet from the ground and shall be visible fromthe front and the back of the vehicle at a distance of at least fivehundred feet. Any person violating the provisions of this section shall beguilty of an infraction.
3. Any person operating an animal-driven vehicle during the hoursbetween sunset and one-half hour before sunrise may, in lieu of therequirements of subsection 2 of this section, use lamps or lanternscomplying with the rules promulgated by the director of the department ofpublic safety.
4. Any rule or portion of a rule, as that term is defined in section536.010, RSMo, that is created under the authority delegated in thissection shall become effective only if it complies with and is subject toall of the provisions of chapter 536, RSMo, and, if applicable, section536.028, RSMo. This section and chapter 536, RSMo, are nonseverable and ifany of the powers vested with the general assembly pursuant to chapter 536,RSMo, to review, to delay the effective date, or to disapprove and annul arule are subsequently held unconstitutional, then the grant of rulemakingauthority and any rule proposed or adopted after August 28, 2004, shall beinvalid and void.
(RSMo 1939 ยง 8388, A.L. 1988 S.B. 686, A.L. 1996 H.B. 1047, A.L. 2004 S.B. 956, A.L. 2009 H.B. 683)*Transferred 1969; formerly 304.480