Any organized event requires a permit from the Chicago Park District. The cost depends on the event type and needs of the event, and some parks have restrictions as to what events can and cannot take place. The Chicago Park District does not permit any runs, walks, or rides on the Bloomingdale Trail. The four access parks have more flexibility and can be permitted as a station for a run, walk or ride at street level.
Additional information may be included depending on the type of the event, including proof of insurance, route maps for all races and runs, security plans and medical services and required city documents. Permit levels issued by the Department of Revenue include picnic levels, athletic levels, corporate levels, media levels, promotions levels, and festivals/performances levels.