MO HB721

Motor vehicles must maintain at least 4 feet of distance when passing bicycles or pedestrians, and change lanes when possible to pass safely

Creates the crime of "injuring a vulnerable road user" for careless or distracted driving that causes serious injury or death, with penalties up to $2,000 fine, 30 days jail, and 6-month license suspension

Expands the definition of "pedestrian" to include people using wheelchairs, electric mobility devices, and human-powered conveyances other than bicycles

Allows bicyclists to ride in the center of the right lane, on the shoulder, or to the right side of the roadway, and permits riding abreast within their lane

Prohibits threatening, throwing objects at, or knowingly endangering pedestrians and bicyclists, with violations classified as class C misdemeanor (or class A if injury or property damage results)