Unless otherwise prohibited by a governmental entity having jurisdiction, a person may operate a Class I or Class II electric bicycle on any bicycle path or multi-use path in this state.
A person may not operate a Class III electric bicycle on a bicycle path or multi-use path in this state unless:
A person may operate a Class III electric bicycle on a trail that has been designated as nonmotorized, if the trail was constructed only by clearing or grading the native soil and without the installation or placement of any additional surface material and if the governmental entity having jurisdiction over the trail has not otherwise prohibited or restricted the operation.
SDCL 32-20B-12