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Page 2 of 3 AARP Driver Safety Smart Driver™ Course State-Specific Information D20701 – March 2026NEW MISSOURI Safe Following Distance - Participant Guidebook Page 64 • A safe following distance must be reasonable and prudent. This means adjusting your speed to the surrounding traffic, condition of the road and speed of the vehicle you are following. Missouri recommends a three-second following distance. Turning at Intersections - Participant Guidebook Page 68 • Drivers must use their turn signal at least 100 feet before turning. • An officer can ticket a driver for waiting to turn left in an intersection if they are obstructing traffic. • When turning left from a two-way street on to a one-way street, drivers must turn into the most extreme left-hand lane available. • It is legal to turn on red from the inside lane of multiple right turn lanes if it is safe to do so and there are no signs prohibiting. • It is illegal to make a left turn from a two-way street to a one-way on a solid red light. • It is illegal to make a left turn from a one-way street to another one-way on a solid red light. U-Turns – Participant Guidebook Page 69 • Drivers may not make a U-turn where the vehicle cannot be seen by the driver of another vehicle approaching in either direction at a distance of 300 feet. Merging – Participant Guidebook Page 70 • Drivers shall yield the right-of-way to vehicles to the right. • Drivers must yield the right-of-way to traffic on the highway which is so close to constitute a hazard. Handicapped Parking – Participant Guidebook Page 74 • Drivers with disabilities must display either a special license plate or windshield placard to park in designated persons with disabilities parking spaces. • Drivers who have an impaired ability to walk due to a medical condition are eligible for a placard. Driving in Rain, Snow, Fog, Smoke, Dust and Other Conditions – Participant Guidebook Page 75-77 • Drivers must turn on their headlights when their windshield wipers are on or when visibility falls below 500 feet. • Drivers may not use studded tires from April 1 through November 1. Sharing the Road with Emergency Vehicles – Participant Guidebook Page 82 • On any undivided highway on which an emergency vehicle approaches with its lights and siren on, all traffic shall yield to the right, clear of any intersection, and shall stop. • If an emergency vehicle is stopped on the shoulder of a freeway with its flashing lights on, the driver must move to the middle or left lane. If it is not possible to change lanes, the driver must reduce their speed and be prepared to stop. • Drivers shall not follow an emergency vehicle closer than 500 feet. Sharing the Road with School Buses – Participant Guidebook Page 82 • Drivers do not have to stop for a school bus if they are traveling on the opposite side of a divided highway or a highway with four or more lanes.