The Coast Guard will enforce the Lake Michigan at Chicago Harbor and Burnham Park Harbor safety and security zone on a portion of Lake Michigan in Chicago, IL. This action is intended to protect spectators and dignitaries associated with the Democratic National Convention. During the enforcement period listed below, entry into, transiting, or anchoring within the safety and security zone is prohibited unless authorized by the Captain of the Port Lake Michigan or a designated Coast Guard or U.S. Secret Service representative.
Source: Federal Register USCG
Link: Safety and Security Zone; Lake Michigan at Chicago Harbor & Burnham Park Harbor