{"abstract":"The Coast Guard will enforce a safety zone for the Chicago Masters' Big Shoulders 5K and 2.5K Open Water Swim event to provide for the safety of life on navigable waterways during a swim event. Our regulation for marine events within the Great Lakes Coast Guard District identified the safety zone for this event in Chicago, IL. During the enforcement period, entry into, transiting, or anchoring within the safety zone is prohibited unless authorized by the Captain of the Port Lake Michigan or a designated on-scene representative.","action":"Notification of enforcement of regulation.","agencies":[{"raw_name":"DEPARTMENT OF HOMELAND SECURITY","name":"Homeland Security Department","id":227,"url":"https://www.federalregister.gov/agencies/homeland-security-department","json_url":"https://www.federalregister.gov/api/v1/agencies/227","parent_id":null,"slug":"homeland-security-department"},{"raw_name":"Coast Guard","name":"Coast Guard","id":53,"url":"https://www.federalregister.gov/agencies/coast-guard","json_url":"https://www.federalregister.gov/api/v1/agencies/53","parent_id":227,"slug":"coast-guard"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2026/09/04/2026-18130.html","cfr_references":[{"chapter":null,"citation_url":null,"part":"165","title":33}],"citation":"91 FR 56779","comment_url":null,"comments_close_on":null,"correction_of":null,"corrections":[],"dates":"The regulations in 33 CFR 165.932 will be enforced from 7 a.m. through Noon on September 12, 2026.","disposition_notes":null,"docket_ids":["Docket No. USCG-2026-1083"],"dockets":[{"supporting_documents":[],"agency_name":"USCG","documents":[{"comment_count":0,"comment_start_date":"2026-09-04","updated_at":"2026-09-04T09:01:22.136-04:00","comment_url":"https://www.regulations.gov/commenton/USCG-2026-1083-0001","allow_late_comments":false,"id":"USCG-2026-1083-0001","comment_end_date":null,"regulations_dot_gov_open_for_comment":false}],"supporting_documents_count":0,"id":"USCG-2026-1083","title":"Safety Zone; Ohio Street Beach Swim Course, Lake Michigan, Chicago Harbor, Chicago, IL"}],"document_number":"2026-18130","effective_on":null,"end_page":56780,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2026/09/04/2026-18130.xml","html_url":"https://www.federalregister.gov/documents/2026/09/04/2026-18130/safety-zone-ohio-street-beach-swim-course-lake-michigan-chicago-harbor-chicago-il","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2026-18130?publication_date=2026-09-04","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2026-09-04/2026-18130/mods.xml","not_received_for_publication":null,"page_length":2,"page_views":{"count":94,"last_updated":"2026-10-22 20:15:04 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2026-09-04/pdf/2026-18130.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":"https://public-inspection.federalregister.gov/2026-18130.pdf?1788439511","publication_date":"2026-09-04","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2026/09/04/2026-18130.txt","regulation_id_number_info":{},"regulation_id_numbers":[],"regulations_dot_gov_info":{"supporting_documents":[],"comments_count":0,"agency_id":"USCG","comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=USCG-2026-1083","supporting_documents_count":0,"docket_id":"USCG-2026-1083","document_id":"USCG-2026-1083-0001","regulation_id_number":null,"title":"Safety Zone; Ohio Street Beach Swim Course, Lake Michigan, Chicago Harbor, Chicago, IL","checked_regulationsdotgov_at":"2026-09-05T15:55:03Z"},"regulations_dot_gov_url":null,"significant":null,"signing_date":null,"start_page":56779,"subtype":null,"title":"Safety Zone; Ohio Street Beach Swim Course, Lake Michigan, Chicago Harbor, Chicago, IL","toc_doc":"Ohio Street Beach Swim Course, Lake Michigan, Chicago Harbor, Chicago, IL","toc_subject":"Safety Zone","topics":[],"type":"Rule","volume":91}