St. Charles County, MO Drone Rules: Recreational Drones (2026)

Section 250.250 covers more than drones. It bars operating a remotely controlled aircraft, watercraft, ground running vehicle, rocket or any other similar device in a St. Charles County park, which sweeps in an RC boat on a park lake and an RC car on park pavement alongside a recreational quadcopter.

The section puts two locks on the door, and both have to be open before anything leaves the ground. First, the device may be operated only in areas designated for such operation by the Parks Director. A park with no designated area is simply not a place to fly, however open the field looks. Second, even inside a designated area, operation is permitted only after written authorization for that operation has been issued by the Director. A verbal go-ahead from staff, or the absence of a posted sign, does not satisfy the section.

The Director's role does not end at yes or no. The section allows the authorization to be conditioned upon proof of satisfactory liability insurance, so a recreational flyer can be asked to document coverage before being cleared. It also allows the authorization to include noise level restrictions, aimed at the sound of rotors and small engines carrying across a park in use. Further special restrictions can be imposed where operation endangers the public, park resources, or the property of others.

For a St. Charles County resident the practical sequence is to contact the parks department before loading the car, confirm whether any county park has an area designated for the kind of device being flown, and obtain the written authorization in hand ahead of time. Flying elsewhere in a county park, or flying inside a designated area without that authorization, is a violation of Section 250.250 no matter how carefully the aircraft is handled.