2024 33 CFR 165.927 – Safety Zone; St. Louis River, Duluth/Interlake Tar Remediation Site, Duluth, MN

2023 33 CFR 165.927 – Safety Zone; St. Louis River, Duluth/Interlake Tar Remediation Site, Duluth, MN

2022 33 CFR 165.927 – Safety Zone; St. Louis River, Duluth/Interlake Tar Remediation Site, Duluth, MN

2021 33 CFR 165.927 – Safety Zone; St. Louis River, Duluth/Interlake Tar Remediation Site, Duluth, MN

2020 33 CFR 165.927 – Safety Zone; St. Louis River, Duluth/Interlake Tar Remediation Site, Duluth, MN

2019 33 CFR 165.927 – Safety Zone; St. Louis River, Duluth/Interlake Tar Remediation Site, Duluth, MN

2016 33 CFR 165.927 – Safety Zone; St. Louis River, Duluth/Interlake Tar Remediation Site, Duluth, MN

2015 33 CFR 165.927 – Safety Zone; St. Louis River, Duluth/Interlake Tar Remediation Site, Duluth, MN

2014 33 CFR 165.927 – Security Zone; Mackinac Bridge, Straits of Mackinac, Michigan

2010 33 CFR 165.927 – Safety Zone; St. Louis River, Duluth/Interlake Tar Remediation Site, Duluth, MN

2009 33 CFR 165.927 – Safety Zone; St. Louis River, Duluth/Interlake Tar Remediation Site, Duluth, MN