Kingdom City Opening and Closing Vehicle Doors ordinance (§ 340.080)
Chapter 340: Miscellaneous Driving Rules
In short: You may not open a vehicle door on the side facing moving traffic until it's reasonably safe, and you may not leave that door open longer than needed to load or unload passengers.
Our plain-English summary, not the official text or legal advice. The ordinance below is what counts.
No person shall open the door of a motor vehicle on the side available to moving traffic unless and until it is reasonably safe to do so, nor shall any person leave a door open on the side of a motor vehicle available to moving traffic for a period of time longer than necessary to load or unload passengers. (RSMo. § 300.340)
Official source: Village of Kingdom City official Code of Ordinances (online), § 340.080
Last checked November 1, 2026. The city's official copy controls; this page is a reading copy, not legal advice.