1. The driver of any vehicle shall obey the instructions of any official traffic-control device applicable thereto placed in accordance with the provisions of the law, unless otherwise directed by a traffic or police officer, subject to the exceptions granted the driver of an authorized emergency vehicle in the law.

2. No provision of the law for which official traffic-control devices are required shall be enforced against an alleged violator if at the time and place of the alleged violation an official device is not in proper position and sufficiently legible to be seen by an ordinarily observant person. Whenever a particular section does not state that official traffic-control devices are required, such section shall be effective even though no devices are erected or in place.

Attorney's Note

Under the Missouri Laws, punishments for crimes depend on the classification. In the case of this section:
ClassPrisonFine
Class C misdemeanorup to 15 daysup to $750
For details, see Mo. Rev. Stat.§ 558.011

Terms Used In Missouri Laws 304.271

  • Evidence: Information presented in testimony or in documents that is used to persuade the fact finder (judge or jury) to decide the case for one side or the other.
  • Person: any natural person, corporation, or other legal entity. See Missouri Laws 304.001
  • State: when applied to any of the United States, includes the District of Columbia and the territories, and the words "United States" includes such district and territories. See Missouri Laws 1.020

3. Whenever official traffic-control devices are placed in position approximately conforming to the requirements of the law, such devices shall be presumed to have been so placed by the official act or direction of lawful authority, unless the contrary shall be established by competent evidence.

4. Any official traffic-control device placed pursuant to the provisions of the law and purporting to conform to the lawful requirements pertaining to such devices shall be presumed to comply with the requirements of this chapter, unless the contrary shall be established by competent evidence.

5. Notwithstanding the provisions of section 304.361, violation of this section is a class C misdemeanor.