1. 1. Any lighted lamp or illuminating device upon a motor vehicle other than headlamps, spotlamps, front direction signals or auxiliary lamps which projects a beam of light of an intensity greater than three hundred candlepower shall be so directed that no part of the beam will strike the level of the roadway on which the vehicle stands at a distance of more than seventy-five feet from the vehicle. Alternately flashing warning signals may be used on school buses when used for school purposes and on motor vehicles when used to transport United States mail from post offices to boxes of addressees thereof and on emergency vehicles as defined in section 304.022, on buses owned or operated by churches, mosques, synagogues, temples or other houses of worship, and on commercial passenger transport vehicles or railroad passenger cars that are stopped to load or unload passengers, but are prohibited on other motor vehicles, motorcycles and motor-drawn vehicles except as a means for indicating a right or left turn.
2. 2. Notwithstanding the provisions of section 307.120, violation of this section is an infraction.

(L. 1941 p. 438 § 8386j, A.L. 1955 p. 625, A.L. 1957 p. 633, A.L. 1996 H.B. 1047, A.L. 2001 H.B. 458, A.L. 2004 S.B. 732 merged with S.B. 1233, et al.)

(1955) Where truck was stopped with rear in ditch and front across highway about two or three feet from center, verdict directing instruction which authorized recovery unless truck was displaying red light visible for 500 feet and directed toward direction from which plaintiff was coming, held erroneous. Bunch v. Wagner (A.), 275 S.W.2d 753.

(1957) Permitting a damaged vehicle to remain on the highway without lights as required by § 304.450 is negligence per se. Leek v. Dillard (A.), 304 S.W.2d 60.

(1958) Evidence did not require finding that plaintiff was guilty of contributory negligence as matter of law in colliding at night with truck defendant had parked without lights partially upon paved portion of road. Beaver v. Wilhelm (A.), 321 S.W.2d 1.

(1962) Wording of instruction on contributory negligence based on failure to display a "lighted red lamp" held sufficient to properly instruct under the statute. Wiber v. Mana (Mo.), 356 S.W.2d 88.

(1967) Subject to the exception stated in the first paragraph of section 304.450, RSMo, the lighting requirements imposed by sections 304.310 and 304.380, RSMo, are applicable to a vehicle parked at the curb on a city street. Walker v. Massey (A.), 417 S.W.2d 14.